NASDAQ: WLFC

WILLIS LEASE FINANCE CORP

CIK 0001018164 · SIC 5080 · Machinery & Equipment

Mid Revenue $730M Assets $3.7B as of Aug 26, 2026

Willis Lease Finance Corporation with its subsidiaries (“WLFC” or the “Company”) is a leading lessor and servicer of commercial aircraft and aircraft engines. Our principal business objective is to build value for our shareholders by acquiring commercial aircraft and engines and managing those… About this business →

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8-K Filed Aug 25, 2026 · Period ending Aug 24, 2026

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8-K Filed Aug 6, 2026 · Period ending Aug 3, 2026

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8-K Filed Aug 4, 2026 · Period ending Aug 4, 2026

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10-Q Filed Aug 4, 2026 · Period ending Jun 30, 2026

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8-K Filed Jul 30, 2026 · Period ending Jul 29, 2026

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8-K Filed Jul 21, 2026 · Period ending Jul 21, 2026

Willis Lease schedules Q2 2026 earnings release and call for August 4

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8-K Filed Jul 17, 2026 · Period ending Jul 17, 2026

Willis Lease executes 3-for-1 stock split, triples authorized shares to 60M common

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8-K Filed Jul 14, 2026 · Period ending Jul 10, 2026

Willis Lease to acquire 12 aircraft and 13 engines for $379.3M, closing expected Q3 2026

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8-K Filed Jul 10, 2026 · Period ending Jul 6, 2026

Willis Lease sets July 6 record date for 3-for-1 stock split, effective July 17

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8-K Filed Jun 23, 2026 · Period ending Jun 23, 2026

Willis Lease shareholders approve 3-for-1 stock split, effective July 6 record date

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8-K Filed May 27, 2026 · Period ending May 26, 2026

Willis Lease adjourns vote on 3-for-1 stock split, needs more stockholder support

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8-K Filed May 18, 2026 · Period ending May 18, 2026

Willis Lease raises $200M through convertible notes offering at 2.50% due 2031

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8-K Filed May 5, 2026 · Period ending May 5, 2026

Willis Lease Finance reports Q1 2026 earnings, declares $0.40 quarterly dividend

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10-Q Filed May 5, 2026 · Period ending Mar 31, 2026

WLFC: revenue $194.3M, net income $25.1M. WLFC Q1 revenue up 23% on new fund fees and asset sales; debt refinancing charge

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8-K Filed Apr 22, 2026 · Period ending Apr 22, 2026

Willis Lease Finance schedules Q1 2026 earnings call for May 5

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10-K Filed Mar 10, 2026 · Period ending Dec 31, 2025

Willis Lease grows portfolio 228.28.3% to $730.2M revenue, launches fund partnerships

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10-Q Filed Nov 4, 2025 · Period ending Sep 30, 2025

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10-Q Filed May 6, 2025 · Period ending Mar 31, 2025

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10-K Filed Mar 11, 2025 · Period ending Dec 31, 2024

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Latest financial statements

From 10-Q filed Aug 4, 2026 (period ending Jun 30, 2026). As printed on the EDGAR/iXBRL face — not generated by the model.

As filed

Condensed Consolidated Statements of Income (Unaudited)

(In thousands, except per share data)

Description Three months ended June 30, 2026 Three months ended June 30, 2025 Six months ended June 30, 2026 Six months ended June 30, 2025
REVENUE
Lease rent revenue 77,137 72,268 154,522 140,007
Maintenance reserve revenue 46,456 50,743 101,968 105,602
Spare parts and equipment sales 21,180 30,354 42,867 48,594
Interest revenue 1,183 3,649 3,971 7,583
Gain on sale of leased equipment 32,038 27,582 49,997 32,019
Gain on sale of financial assets 154 592 378
Maintenance services revenue 8,983 8,031 18,752 13,617
Management and advisory fees 5,524 2,588 13,419 4,551
Other revenue 1,362 287 2,275 883
Total revenue 194,017 195,502 388,363 353,234
EXPENSES
Depreciation and amortization expense 29,068 27,550 59,246 52,574
Cost of spare parts and equipment sales 15,097 28,102 29,514 43,425
Cost of maintenance services 10,350 8,621 19,210 13,950
Write-down of equipment 4,910 11,458 6,059 13,567
General and administrative 55,559 50,429 112,163 98,149
Technical expense 9,947 7,508 19,635 13,738
Net finance costs:
Interest expense 29,689 33,569 62,322 65,663
Loss on debt extinguishment 5,421 12,448
Total net finance costs 35,110 33,569 74,770 65,663
Total expenses 160,041 167,237 320,597 301,066
Income from operations 33,976 28,265 67,766 52,168
Gain on sale of business 42,950 42,950
Income from investments 4,172 3,082 7,220 4,433
Income before income taxes 38,148 74,297 74,986 99,551
Income tax expense 7,828 13,920 19,583 22,305
Net income 30,320 60,377 55,403 77,246
Net income attributable to noncontrolling interests 152 152
Net income attributable to WLFC 30,168 60,377 55,251 77,246
Preferred stock dividends 1,353 1,353 2,706 2,676
Accretion of preferred stock issuance costs 70 69 139 139
Net income attributable to common shareholders 28,745 58,955 52,406 74,431
Basic weighted average income per common share 1.36 2.89 2.53 3.70
Diluted weighted average income per common share 1.31 2.81 2.39 3.55

Condensed Consolidated Balance Sheets (Unaudited)

(In thousands, except per share data)

Description June 30, 2026 December 31, 2025
ASSETS
Cash and cash equivalents 10,725 16,441
Restricted cash 161,497 530,500
Equipment held for operating lease, less accumulated depreciation of $613,256 and $640,495 at June 30, 2026 and December 31, 2025, respectively 2,783,382 2,801,683
Maintenance rights 83,632 30,632
Equipment held for sale 77,002 20,509
Receivables, net of allowances of $944 and $868 at June 30, 2026 and December 31, 2025, respectively 41,365 35,717
Spare parts inventory 51,402 56,577
Investments 152,148 104,250
Property, equipment & furnishings, less accumulated depreciation of $30,959 and $27,869 at June 30, 2026 and December 31, 2025, respectively 76,904 73,835
Intangible assets, net 8,295 271
Notes receivable, net of allowances of $101 and $140 at June 30, 2026 and December 31, 2025, respectively 89,279 139,945
Investments in sales-type leases, net of allowances of $0 and $17 at June 30, 2026 and December 31, 2025, respectively 16,595
Due from affiliates 3,188
Other assets 114,357 109,360
Total assets (1) 3,653,176 3,936,315
LIABILITIES, REDEEMABLE PREFERRED STOCK AND EQUITY
Liabilities:
Accounts payable and accrued expenses 103,306 105,706
Deferred income taxes 264,773 228,547
Debt obligations 2,320,904 2,700,338
Maintenance reserves 129,261 116,185
Security deposits 24,537 24,651
Unearned revenue 35,112 35,350
Due to affiliates 1,407
Total liabilities (2) 2,879,300 3,210,777
Redeemable preferred stock ($0.01 par value, 15,000 shares authorized; 9,750 shares issued at June 30, 2026 and December 31, 2025, respectively) 63,540 63,401
Shareholders’ equity:
Common stock ($0.01 par value, 60,000 shares authorized; 22,808 and 22,860 shares issued at June 30, 2026 and December 31, 2025, respectively) 228 229
Paid-in capital in excess of par 71,274 72,510
Retained earnings 637,033 590,785
Accumulated other comprehensive income (loss), net of income tax expense (benefit) of $18 and $(395) at June 30, 2026 and December 31, 2025, respectively 61 (1,387)
Total Willis Lease Finance Corporation (“WLFC”) shareholders’ equity 708,596 662,137

Condensed Consolidated Statements of Cash Flows (Unaudited)

(In thousands)

Description Six months ended June 30, 2026 Six months ended June 30, 2025
Cash flows from operating activities:
Net income 55,403 77,246
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense 59,246 52,574
Gain on sale of leased equipment (49,997) (32,019)
Stock-based compensation expense 26,455 23,658
Loss on debt extinguishment 12,448
Income from investments (7,220) (4,433)
Accretion of deferred costs and note discounts 6,390 5,033
Write-down of equipment 6,059 13,567
Payments received on sales-type leases 1,164 5,210
Gain on derivative instruments (701)
Gain on sale of financial assets (592) (378)
(Gain) loss on disposal of property, equipment and furnishings (23) 45
Allowances and provisions 20 (169)
Gain on sale of business (42,950)
Amortization of contract asset 1,497
Deferred income taxes 18,367 20,733
Changes in assets and liabilities:
Receivables (5,706) (828)
Inventory 10,918 8,852
Other assets 4,682 890
Due from affiliates (3,188)
Accounts payable and accrued expenses (11,246) (1,325)
Maintenance reserves 13,194 21,315
Security deposits (114) 280
Unearned revenue (2,246) (3,607)
Due to affiliates 886
Net cash provided by operating activities 134,199 145,191
Cash flows from investing activities:
Purchase of equipment held for operating lease and for sale (401,934) (154,944)
Proceeds from sale of equipment (net of selling expenses) 302,836 141,949
Proceeds from sale of notes receivable (net of selling expenses) 88,371
Issuance of notes receivable (42,484)
Purchase of investments and contributions to joint ventures (39,586) (1,770)
Proceeds from sale of investments in sales-type leases 15,513
Purchase of property, equipment and furnishings (6,287) (17,117)
Payments received on notes receivable 5,345 8,580
Proceeds from sale of business (net of cash and cash equivalents sold with business) 21,055
Net cash used in investing activities (78,226) (2,247)
Cash flows from financing activities:
Principal payments on debt obligations (1,182,898) (309,641)
Proceeds from debt obligations 803,000 851,051
Cancellation of restricted stock units in satisfaction of withholding tax (27,914) (18,714)
Debt issuance costs (11,519) (9,017)
Common stock cash dividends paid (6,158) (3,749)
Debt extinguishment payments (4,834)
Preferred stock dividends (2,706) (2,973)
Contributions from non-controlling interest holders 2,115
Proceeds from shares issued under stock compensation plans 222 132
Net cash (used in) provided by financing activities (430,692) 507,089
(Decrease) increase in cash, cash equivalents and restricted cash (374,719) 650,033
Cash, cash equivalents and restricted cash at beginning of period 546,941 132,502
Cash, cash equivalents and restricted cash at end of period 172,222 782,535
Supplemental disclosures of cash flow information:
Net cash paid for (refunded):
Interest 64,083 63,055
Income Taxes (663) 3,429
Supplemental disclosures of non-cash activities:
Transfers from Equipment held for operating lease to Equipment held for sale 9,296 24,436
Transfers from Equipment held for operating lease to Spare parts inventory 738 311
Transfers from Equipment held for sale to Equipment held for operating lease 1,381
Transfers from Notes receivable to Equipment held for operating lease 1,863
Transfers from Notes receivable to Equipment held for sale 1,374
Contributions to joint ventures 22,500
Proceeds from sale of business 22,500
Additions to Equipment held for operating lease (1) 4,631
Accretion of preferred stock issuance costs 139 139

Amounts as printed on the EDGAR/iXBRL face — (In thousands, except per share data); (In thousands). Labels, columns, and figures are the filing face, not a GAAP stencil. Interactive statements & notes on EDGAR ↗

About WILLIS LEASE FINANCE CORP

Source: Item 1 (Business) from the 10-K filed March 10, 2026. Description as filed by the company with the SEC.

ITEM 1. BUSINESS

INTRODUCTION

Willis Lease Finance Corporation with its subsidiaries (“WLFC” or the “Company”) is a leading lessor and servicer of commercial aircraft and aircraft engines. Our principal business objective is to build value for our shareholders by acquiring commercial aircraft and engines and managing those assets in order to provide a return on investment, primarily through lease rent and maintenance reserve revenues, as well as through management fees earned for managing assets owned by third parties. As of December 31, 2025, we had $2,801.7 million of equipment held in our operating lease portfolio, $139.9 million of notes receivable, $30.6 million of maintenance rights, and $16.6 million of investments in sales-type leases, which represented 363 engines, 20 aircraft, one marine vessel and other leased parts and equipment with 69 lessees in 37 countries. In addition to our owned portfolio, as of December 31, 2025, we managed 116 engines and related equipment for third parties.

Willis Aeronautical Services, Inc. (“Willis Aero”) is a wholly-owned and vertically-integrated subsidiary whose primary focus is the sale of aircraft engine parts and materials through the acquisition or consignment of aircraft and engines.

We are a Delaware corporation, incorporated in 1998. Our executive offices are located at 4700 Lyons Technology Parkway, Coconut Creek, Florida 33073. We transact business directly and through our subsidiaries and consolidated variable interest entities (“VIE”) unless otherwise indicated.

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We maintain a website at www.wlfc.global where our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and all amendments to those reports are available without charge, as soon as reasonably practicable following the time we electronically file them with, or furnish them to, the Securities and Exchange Commission (“SEC”). The SEC also maintains an electronic Internet site that contains our reports, proxies and information statements, and other information that we file or furnish at http://www.sec.gov. References to our and the SEC’s website do not constitute incorporation by reference of the information contained on those websites and should not be considered part of this document.

We separate our business into two reportable segments, Leasing and Related Operations and Spare Parts Sales. Our business activities by reportable segment are described below.

Leasing and Related Operations

Our strategy is to lease aircraft and aircraft engines and provide related services to a diversified group of commercial aircraft operators and maintenance, repair and overhaul organizations (“MROs”) worldwide. Commercial aircraft operators need engines in addition to those installed on the aircraft that they operate. Spare engines are required to support fleet operation during the highly regulated maintenance cycle of aircraft engines. Furthermore, unscheduled events such as mechanical failure, aircraft utilization, Federal Aviation Administration (“FAA”) airworthiness directives, or manufacturer-recommended actions for maintenance, repair and overhaul of engines result in the need for spare engines.

Our engine portfolio primarily consists of noise-compliant Stage IV commercial jet engines manufactured by CFMI, General Electric, Pratt & Whitney, Rolls Royce, and International Aero Engines. These engines generally may be used on one or more aircraft types and are the most widely used engines in the world, powering Airbus, Boeing, Bombardier, and Embraer aircraft.

We acquire engines for our leasing portfolio in a number of ways. We enter into sale and lease back transactions with operators of aircraft, original equipment manufacturers of engines, and MROs. We also purchase both new and used engines that are subject to a lease when purchased, as well as some without a lease attached when purchased.

Total revenues from our Leasing and Related Operations reportable segment was 94.9% and 95.4% of the respective total consolidated revenue for the years ended December 31, 2025 and 2024, respectively.

At December 31, 2025, approximately 64.8% of our on-lease engines, aircraft, and related equipment (all of which we sometimes refer to as “equipment”) by net book value are leased and operated internationally. Substantially all leases relating to this equipment are denominated and payable in United States (“U.S.”) dollars, which is customary in the industry. Future leases may provide for payments to be made in other foreign currencies. In 2025, we leased our equipment to lessees domiciled in eight geographic regions.

Spare Parts Sales

Our wholly-owned and vertically-integrated subsidiary Willis Aero primarily engages in the sale of aircraft engine parts and materials through the acquisition or consignment of engines from third parties or from the leasing portfolio. This business segment enables us to provide end-of-life solutions for the growing supply of surplus aircraft and engines, as well as manage the full life cycle of our lease assets, enhance the returns on our engine portfolio through our usage of used serviceable material, and create incremental value for our shareholders.

INDUSTRY

Historically, commercial aircraft operators owned rather than leased their spare engines. As engines have grown in power and technological sophistication, they have also become more expensive to acquire and maintain. In part due to cash constraints on commercial aircraft operators and the costs associated with engine ownership, commercial aircraft operators have become more cost-conscious and now utilize operating leases for a portion of their spare engines. Engine leasing is a specialized business that has evolved into a discrete sector of the commercial aviation market. Participants in this sector need access to capital, as well as specialized technical knowledge, in order to compete successfully.

Growth in the spare engine leasing industry is dependent on two fundamental drivers:

•the number of commercial aircraft, and therefore engines, in the market; and

•the proportion of engines that are leased, rather than owned, by commercial aircraft operators.

Increased number of aircraft, and therefore engines, in the market

We believe that the number of commercial and cargo aircraft, and hence spare engines, will increase. Boeing projects 3.1% annual growth in the global commercial jet fleet, increasing the current fleet to 49,640 aircraft by 2044. Aircraft equipment manufacturers have predicted such an increase in aircraft to address the rapid growth of both passenger and cargo traffic in the Asian markets, as well as demand for new aircraft in more mature markets.

Increased lease penetration rate

Spare engines provide support for installed engines in the event of routine or other engine maintenance or unscheduled removal. The number of spare engines needed to service any fleet is determined by many factors. These factors include:

•the number and type of aircraft in an aircraft operator’s fleet;

•the geographic scope of such aircraft operator’s destinations;

•the time an engine is on-wing between removals;

•average shop visit time; and

•the number of spare engines an aircraft operator requires in order to ensure coverage for predicted and unscheduled removals.

We believe that commercial aircraft operators are increasingly considering their spare engines as significant capital assets, in which operating or finance leases may be more attractive than the outright ownership of spare engines, regardless of whether or not financed. We believe the percentage of leased engines is likely to increase as engine leasing follows the historical growth of aircraft leasing due to the increasing cost of newer engines, the anticipated modernization of the worldwide aircraft fleet and the significant cost associated therewith, and the emergence of new niche-focused airlines which generally use leasing in order to obtain their capital assets.

ENGINE LEASING

As of December 31, 2025, the majority of our leases to air carriers, manufacturers and MROs were operating leases with the exception of certain failed sale-leaseback transactions classified as notes receivable under Accounting Standards Codification (“ASC”) 842, “Leases,” and investments in sales-type leases. Under operating leases, we retain the potential benefit and assume the risk of the residual value of the equipment, in contrast to finance leases in which the lessee has the potential benefits and risks of ownership. Operating leases allow commercial aircraft operators greater fleet and financial flexibility due to the relatively small initial capital outlay necessary to obtain use of the aircraft equipment and the availability of short-term and long-term leases to better meet their needs. Operating lease rates are generally higher than finance lease rates, in part because of the lessor retained residual value risk.

Our leases are “triple-net” operating leases, meaning the lease requires the lessee to make the full lease payment and pay any other expenses associated with the use of the engines, such as maintenance, casualty and liability insurance, sales or use taxes and personal property taxes. The leases contain detailed provisions specifying the lessees’ responsibility for engine damage, maintenance standards, and the required condition of the engine upon return at the end of the lease. During the term of the lease, we require the lessee to maintain the engine in accordance with an approved maintenance program designed to meet applicable regulatory requirements in the jurisdictions in which the lessee operates. We periodically inspect our leased engines.

We enter into both long-term and short-term leases which typically provide for monthly payment. Long-term leases typically have original lease terms in excess of one year. Characteristics of a long-term lease also include specified return conditions. Return conditions can be met by the customer through a maintenance overhaul in advance of asset return or a cash settlement at lease end resulting in maintenance revenue to the Company at that time. Maintenance reserves, also referred to as use fees, are often used for payment of maintenance overhauls in advance of asset returns by the lessee to the Company. Where a cash settlement is agreed upon, it may, in some instances, be taken from maintenance reserves paid by the lessee to the Company throughout the course of the lease. Short-term leases typically have an original lease term of less than one year. Short-term leases also include non-refundable, usage-based maintenance fees, which are billed at contractual rates and recognized as revenue over the term of the leases. Payment terms of our leases are predominantly monthly in advance for rent and in arrears for the expenses associated with the use of the engines. As of December 31, 2025 and 2024, 40% and 47%, respectively, of the Company’s leases by net book value were short-term leases.

We have a robust risk management program. For example, we analyze the credit risk associated with a lessee before entering into any significant lease transaction. Our credit analysis generally consists of evaluating the prospective lessee’s financial standing by utilizing financial statements and trade and/or banking references. In certain circumstances, we may require our lessees to provide additional credit support, such as a letter of credit, a guaranty from a bank or a third party, or a security deposit. We manage our interest rate risk through maintaining a balance of fixed and floating rate debt which allows us to limit our exposure to interest rate movements while also allowing us to benefit from low short-term interest rates. The Company generally utilizes our credit facility as a warehouse facility, as well as our senior secured warehouse credit facility, to aggregate purchased assets. Historically, when the Company aggregates a critical mass of assets through revolver and warehouse financing, we refinance the assets through the issuance of long-term fixed rate debt through the Asset-Backed Security (“ABS”) and other markets. The maturity profile of the ABS term financings tend to better match the long-life characteristics of our long-life asset base. Furthermore, the Company also manages interest rate exposure through the purchasing of interest rate swaps which mitigates adverse short-term rate movements that would increase the cost of our floating rate borrowings. At December 31, 2025 the Company had $2.0 billion of fixed-rate financing. We also evaluate both insurance and expropriation risk and evaluate and monitor the political and legal climate of the country in which a particular lessee is located in order to determine our ability to repossess our engines should the need arise. Despite these guidelines, we cannot give assurance that we will not experience collection problems or significant losses in the future. See Item 1A, “Risk Factors” below.

At the commencement of a lease, we may collect, in advance, a security deposit normally equal to at least one month’s lease payment. The security deposit is returned to the lessee after all lease return conditions have been met. Under the terms of some of our leases, during the term of the lease, the lessee pays amounts to us based on usage of the asset, which is referred to as maintenance reserves or use fees, which are designed to cover the expected future maintenance costs. For those leases in which the maintenance reserves are reimbursable to the lessee, maintenance reserves are collected and are reimbursed to the lessee when qualifying maintenance is performed. Under longer-term leases, to the extent that cumulative use fee billings are inadequate to fund expenditures required prior to return of the asset to us, the lessee is obligated to cover the shortfall.

During the lease period, our leases require that maintenance and inspection of the leased engines be performed at qualified maintenance facilities certified by the FAA or its foreign equivalent. In addition, when an asset becomes off-lease, it undergoes inspection to verify compliance with lease return conditions. Our management believes that our attention to our lessees and our emphasis on maintenance and inspection helps preserve residual values and generally helps us to recover our investment in our leased assets.

Upon termination of a lease, we will either enter into a new lease, overhaul, sell, or part out (disassemble and sell the parts separately), the related engines or airframe. The demand for after-market engines for either sale or lease may be affected by a number of variables, including:

•general market conditions;

•regulatory changes (particularly those imposing environmental, maintenance, and other requirements on the operation of engines);

•changes in domestic and international trade policy;

•changes in demand for air travel;

•fuel costs;

•changes in the supply and cost of aircraft equipment; and

•technological developments in the industry.

The value of a particular model of engine is heavily dependent on the status of the types of aircraft on which it can be installed. We believe engine values tend to be stable as long as the host aircraft for the engines and the engines themselves are still being manufactured. Prices tend to remain stable and may even rise after a host aircraft is no longer manufactured as long as there is sufficient remaining demand for the host aircraft in the market. However, the value of an engine begins to decline rapidly once the host aircraft is retired from service and/or parted out in significant numbers. Engine values also may decline due to manufacturing defects that surface after initial manufacture and deployment.

The value of any particular used engine or airframe varies greatly depending upon its condition, the maintenance services performed during the lease term, and the number of hours or cycles remaining until the next major maintenance interval. If we are unable to lease or sell engines on favorable terms, our financial results and our ability to service debt may be adversely affected. See “Risk Factors” below.

As of December 31, 2025, we had $2,801.7 million of equipment held in our operating lease portfolio, $139.9 million of notes receivable, $30.6 million of maintenance rights, and $16.6 million of investments in sales-type leases, which represented 363 engines, 20 aircraft, one marine vessel and other leased parts and equipment. As of December 31, 2024, we had $2,635.9 million of equipment held in our operating lease portfolio, $183.6 million of notes receivable, $31.1 million of maintenance rights, and $21.6 million of investments in sales-type leases, which represented 354 engines, 16 aircraft, one marine vessel and other leased parts and equipment.

As of December 31, 2025, minimum future payments due to the Company under non-cancelable operating leases were as follows:

Year(in thousands)

2026$234,170

2027140,801

202884,316

202932,140

203017,869

Thereafter16,640

$525,936

As of December 31, 2025, minimum future payments due to the Company under non-cancelable notes receivable and investments in sales-type leases were as follows:

Year(in thousands)

2026$22,920

202721,790

202821,608

202947,205

203019,726

Thereafter75,337

Total undiscounted lease receivables208,586

Less: interest52,046

Total notes receivable and investments in sales-type leases$156,540

As of December 31, 2025, we had 69 lessees of commercial aircraft engines and related equipment, aircraft, and other leased parts and equipment in 37 countries. We believe the loss of any one customer would not have a significant long-term adverse effect on our business. We operate in a global market in which our engines are easily transferable among lessees located in many countries, which stabilizes demand and allows us to recover from a loss of a customer. We provide other engine leasing-related services such as engine storage, Part 145 maintenance and aircraft tear down services to our customers as well.

In 2011, we entered into an agreement with Mitsui & Co., Ltd. to participate in a joint venture formed as a Dublin-based Irish limited company, Willis Mitsui & Company Engine Support Limited (“WMES”), for the purpose of acquiring and leasing jet engines. Each partner holds a 50% interest in the joint venture. WMES owned a lease portfolio of 65 engines, one aircraft, and other parts and equipment with a net book value of $575.3 million as of December 31, 2025. Our investment in the joint venture was $78.9 million as of December 31, 2025.

In 2014, we entered into an agreement with China Aviation Supplies Import & Export Corporation (“CASC”) to participate in a joint venture named CASC Willis Lease Finance Company Limited (“CASC Willis”), a joint venture based in Shanghai, China. Each partner holds a 50% interest in the joint venture. CASC Willis acquires and leases jet engines to Chinese airlines and concentrates on meeting the fast-growing demand for leased commercial aircraft engines and aviation assets in the People’s Republic of China. CASC Willis owned a lease portfolio of six engines with a net book value of $50.4 million as of December 31, 2025. Our investment in the joint venture was $21.6 million as of December 31, 2025.

In 2025, we entered into an agreement with independent MRO (Maintenance, Repair and Overhaul) provider Global Engine Maintenance to create a joint venture named Willis Global Engine Testing (“WGET”) to build an engine test facility in West Palm Beach, Florida. The Company has a 70% membership interest, and Global Engine Maintenance has a 30% membership interest. WGET is a VIE that the Company is not the primary beneficiary of since the power to direct the activities that most significantly impact WGET’s economic performance is shared between the Company and Global Engine Maintenance. The Company’s considerations in determining the VIE most significant activities and whether the Company has the power to direct those activities include, but are not limited to, the VIE’s purpose and design and the matters that require unanimous approval from both parties. Accordingly, the Company does not consolidate WGET, and the Company uses the equity method in recording investment activity. Our investment in the joint venture was $3.7 million as of December 31, 2025.

AIRCRAFT LEASING

As of December 31, 2025, our operating lease portfolio included six ATR 72-500 aircraft, six Dash 8-400 aircraft, two A319-100 aircraft, two A320-214 aircraft, two A320-271N aircraft, one A320-200 aircraft, and one A320-233 aircraft, with an aggregate net book value of $219.4 million.

Like our engine leases, our aircraft leases are “triple-net” leases, where the lessee is responsible for making the full lease payment and paying any other expenses associated with the use of the aircraft, such as maintenance, casualty and liability insurance, sales or use taxes and personal property taxes. In addition, the lessee is responsible for normal maintenance and repairs, and compliance with return conditions of flight equipment on lease. Under the provisions of many leases, for certain engine and airframe overhauls, we reimburse the lessee for costs incurred up to but not exceeding maintenance reserves the lessee has paid to us. Maintenance reserves are designed to cover the expected maintenance costs. The lessee is also responsible for compliance with all applicable laws and regulations with respect to the aircraft. We require our lessees to comply with FAA requirements. We periodically inspect our leased aircraft. Generally, we require a deposit as security for the lessee’s performance of obligations under the lease and the condition of the aircraft upon return. In addition, the leases contain extensive provisions regarding our remedies and rights in the event of a default by the lessee and specific provisions regarding the condition of the aircraft upon return. The lessee is required to continue to make lease payments under all circumstances, including periods during which the aircraft is not in operation due to maintenance or grounding.

SPARE PARTS SALES

The sale of spare parts is managed by the Company’s wholly-owned and vertically-integrated subsidiary, Willis Aero. Willis Aero primarily engages in the sale of aircraft engine parts and materials that it acquires via acquisition or consignment from third parties or from the leasing portfolio. This business segment enables our Company to provide end-of-life solutions for the growing supply of surplus aircraft and engines, as well as manage the full life cycle of our lease assets, enhance the returns on our engine portfolio, and create incremental value for our shareholders. As of December 31, 2025, spare parts inventory had a carrying value of $56.6 million.

COMPETITION

The markets for our products and services are very competitive, and we face competition from a number of sources. These competitors include aircraft engine and aircraft parts manufacturers, aircraft and aircraft engine lessors, airline and aircraft service and repair companies, and aircraft and aircraft engine spare parts distributors. Many of our competitors have substantially greater resources than us, and some are part of larger organizations. Those resources may include greater name recognition, larger product lines, complementary lines of business, greater financial, marketing, and information systems, and other resources. In addition, equipment manufacturers, aircraft maintenance providers, FAA certified repair facilities and other aviation after-market suppliers may vertically integrate into the markets that we serve, thereby significantly increasing industry competition and negatively impacting the Company. We can give no assurance that competitive pressures will not materially and adversely affect our business, financial condition, or results of operations.

It is common for commercial aircraft operators and MROs to utilize several leasing companies to meet their aircraft engine needs and to minimize reliance on a single leasing company.

To distinguish ourselves, we emphasize the quality of our portfolio of aircraft engines, supply reliability, and high level of customer service to our aircraft equipment lessees. We focus on ensuring adequate aircraft engine availability in high-demand locations, dedicate large portions of our organization to building relationships with lessees, maintain close day-to-day coordination with lessees, and have developed an engine pooling arrangement that allows pool members quick access to available spare aircraft engines.

INSURANCE

In addition to requiring full indemnification under the terms of our leases, we require our lessees to carry the types of insurance customary in the air transportation industry, including comprehensive third-party liability insurance and physical damage and casualty insurance. We require that we be named as an additional insured on liability insurance policies with the Company and our lenders normally identified as the loss payee on policies carried by lessees for damage to the leased equipment. We monitor compliance with the insurance provisions of the leases. We also carry contingent physical damage and third-party liability insurance as well as product liability insurance at levels determined to be appropriate by the Company.

GOVERNMENT REGULATION

Our customers are subject to a high degree of regulation in the jurisdictions in which they operate. For example, the FAA regulates the manufacture, repair and operation of all aircraft operated in the U.S. and equivalent regulatory agencies in other countries, such as the European Aviation Safety Agency (“EASA”) in Europe, regulate aircraft operated in those countries. Such regulations also indirectly affect our business operations. All aircraft operated in the U.S. must be maintained under a continuous condition-monitoring program and must periodically undergo thorough inspection and maintenance. The inspection, maintenance and repair procedures for commercial aircraft are prescribed by regulatory authorities and can be performed only by certified repair facilities utilizing certified technicians. The FAA can suspend or revoke the authority of air carriers or their licensed personnel for failure to comply with regulations and ground aircraft if their airworthiness is in question.

While our leasing and reselling business is not regulated, the aircraft, engines and related parts that we purchase, lease and sell must be accompanied by documentation that enables the customer to comply with applicable regulatory requirements. Furthermore, before parts may be installed in an aircraft, they must meet certain standards of condition established by the FAA and/or the equivalent regulatory agencies in other countries. Specific regulations vary from country to country, although regulatory requirements in other countries are generally satisfied by compliance with FAA requirements. With respect to a particular engine or engine component, we utilize FAA and/or EASA certified repair stations to repair and certify engines and components to ensure marketability.

Governmental regulations where the related airframe is registered, and where the aircraft is operated, stipulate noise and emissions levels restrictions. For example, jurisdictions throughout the world have adopted noise regulations which require all aircraft to comply with Stage III noise requirements. In addition to the current Stage III compliance requirements, the U.S. and the International Civil Aviation Organization (“ICAO”) have adopted a more stringent set of Stage IV standards for noise levels which apply to engines manufactured or certified from 2006 onward. At this time, the U.S. regulations do not require any phase-out of aircraft that qualify only for Stage III compliance, but the European Union (“EU”) has established a framework for the imposition of operating limitations on non-Stage IV aircraft.

As of December 31, 2025, most of the engines in our lease portfolio are Stage IV engines and are generally suitable for use on one or more commonly used aircraft.

We believe that the aviation industry will be subject to continued regulatory activity. Additionally, increased oversight will continue to originate from the quality assurance departments of airline operators. We have been able to meet all such requirements to date, and are well positioned to meet any additional requirements that may be imposed. We cannot give assurance, however, that new, more stringent government regulations will not be adopted in the future or that any such new regulations, if enacted, would not have a material adverse impact on us.

FINANCING/SOURCE OF FUNDS

We, directly or through our Willis Engine Structured Trust III, V, VI, VII, VIII, and IX (“WEST III,” “WEST V,” “WEST VI,” “WEST VII,” “WEST VIII,” and “WEST IX”) asset-backed securitizations, revolving credit facility, and senior secured warehouse credit facility, typically acquire engines with a combination of equity capital and funds borrowed from financial institutions.

In 2025:

•The Company and its direct, wholly-owned subsidiary WEST VIII, closed WEST VIII’s offering of $596.0 million in aggregate principal amount of fixed rate notes.

•The Company and its direct, wholly-owned subsidiary WEST IX, closed WEST IX’s offering of $392.9 million in aggregate principal amount of fixed rate notes.

•The Company paid off both its WEST IV Series A and Series B 2018 term notes payable.

In order to facilitate financing and leasing of engines, most of our engines are generally owned through a statutory or common law trust that is wholly-owned by us or our subsidiaries. We usually borrow up to 85% of an engine’s purchase price. Substantially all of our assets secure our related indebtedness. We typically acquire engines from airlines, engine manufacturers or from other lessors. From time to time, we selectively acquire engines prior to a firm commitment to lease or sell the engine, depending on the price of the engine and market demand with the expectation that we can lease or sell such engines in the future. Additionally, for discrete financing purposes, we may enter into bi-lateral and preferred financing arrangements from time to time.

HUMAN CAPITAL MANAGEMENT

The Company’s human capital priorities are focused on attracting, developing, and retaining a skilled and engaged workforce to support its business strategy and long-term performance.

Employees

As of December 31, 2025, the Company employed a total of 475 employees worldwide across North America (United States and Canada), the United Kingdom, Europe, India, and Asia, working in sales and marketing, technical service, and administrative roles. Of these employees, 467 were full-time (excluding consultants). None of our employees are covered by a collective bargaining agreement, and we believe our employee relations are good.

Talent Attraction and Retention

The Company’s talent attraction and retention efforts are focused on hiring the right talent and retaining employees in critical roles necessary to support operational effectiveness and business continuity. These efforts include initiatives aimed at reducing turnover in hourly operational positions. In addition, the Company emphasizes succession planning for leadership and other key roles to support continuity, mitigate talent risk, and maintain organizational capability.

Leadership Development and Capability Building

The Company’s leadership development and capability-building efforts focus on ensuring that management practices, internal people processes, and organizational structures effectively support current operations and future growth. Existing management training programs and onboarding frameworks are reviewed to assess their relevance, consistency, and alignment with business needs across roles and geographies. These efforts are intended to strengthen leadership capability, support effective people management, and promote organizational clarity and accountability.

Culture, Engagement and Performance Practices

The Company emphasizes culture, engagement, and performance practices intended to support accountability, alignment, and employee engagement across the organization. These practices include an annual global employee engagement survey used to gather feedback and inform leadership priorities, as well as a performance management process that incorporates annual goal setting and year-end performance reviews to assess progress and establish objectives for the following year.

The Company also maintains an annual incentive compensation program, under which bonus awards are based on company performance and individual contribution, reinforcing alignment between employee performance and business results.

Total Rewards and Well-Being

The Company’s total rewards and well-being strategy is designed to support the attraction, motivation, and retention of employees while aligning with business performance and market practices. The Company periodically reviews compensation programs to assess market competitiveness and internal equity and provides opportunities for annual merit-based increases and annual incentive compensation.

In addition, the Company offers a benefits program that includes health and wellness resources, with wellness initiatives aimed at promoting employee well-being, education and supporting a productive workforce.

All these strategies combined are to ensure alignment with operational and growth objectives.

INVESTMENT FUND PARTNERSHIPS

In December 2025, the Company entered into a new investment fund partnership with Liberty Mutual Investments (“LMI”), the investment firm for Liberty Mutual Group. The fund will invest up to $600 million in loan and loan-like engine financings and will be supported by a warehouse debt facility. The Company has a General Partner interest through its equity investment in the fund but is not the majority holder. LMI as the Limited Partner has substantive kick-out rights and can liquidate the fund upon a simple majority vote. Per ASC 810, “Consolidation,” the fund is a Voting Interest Entity (“VOE”) that the Company does not consolidate.

In December 2025, the Company entered into a new investment fund partnership with Blackstone Credit & Insurance (“BXCI”) to invest in current and next generation aircraft engines. The fund plans to deploy over $1 billion into target asset types. The Company has a General Partner interest through its equity investment in the fund but is not the majority holder. BXCI as the Limited Partner has substantive kick-out rights and can liquidate the fund upon a simple majority vote. Per ASC 810, the fund is a VOE that the Company does not consolidate.