Note 5. Borrowings
Maturities
December 31, 2025
Interest Rates
December 31, 2024
Interest Rates
(in thousands)(in thousands)
Related Party Notes
2024 - 2025
$— $14,000 
8% - 15.99%
Series 1 promissory notes
2025 - 2026
122 
15%
725 
12% - 15%
Related party convertible notes
2025 - 2026
4,331 
3.94% - 15%
— 
Convertible debentures20265,572 
—% - 5%
— 
Term convertible notes20267,890 3.94%— 
WTI Facility
202819,441 13.50%20,000 13.50%
Total Notes Payable
37,356 34,725 
Less: unamortized debt discount(3,962)(6,446)
Less: current portion of related party notes payable— (14,000)
Less: current portion of term convertible note(7,890)— 
Less: current portion of related party term convertible note(4,331)— 
Less: current portion of notes payable(12,846)(625)
Total Long-term Notes
$8,327 $13,654 
The Company's debt is carried on a historical cost basis net of unamortized discounts and premiums. Costs associated with acquiring debt are presented in the consolidated balance sheets as a direct deduction from the carrying amount of the debt as a debt discount. Discounts on debt are amortized over the contractual life of the related debt instrument using the effective interest method (unless otherwise specified below) and are included in Interest expense, net in the consolidated statements of operations and comprehensive income (loss).
The Company’s notes payable, excluding debt issuance costs, mature as follows (in thousands):
Amount
2026$12,846 
202724,510 
Total$37,356 
Series 1 Promissory Notes
In 2018, the Company authorized the issuance and sale of unsecured promissory notes to investors up to $35.0 million (the “Series 1 promissory notes”). From 2018 to 2021, the Company issued promissory notes with a total principal amount of $4.9 million. The notes require monthly interest payments, have an original maturity period of 36-48 months, and bear interest at 9%-12% per annum. The notes contain two term extension options, at the Company’s election, which can extend the notes’ maturity period to 60 months in total. If the Company elects its first term extension option, the note will bear interest at 12% for months 36 through 48. If the Company elects its second term extension option, the notes will bear interest at 15% for months 48 through 60.
Extensions on Series 1 promissory notes were as follows (in thousands):
December 31, 2025December 31, 2024
Principal amount of 1st extension promissory notes
$— $122 
Principal amount of 2nd extension promissory notes
$122 $603 
Interest expense on Series 1 promissory notes was as follows (in thousands):
SuccessorPredecessor
Year Ended December 31, 2025October 2, 2024 through December 31, 2024January 1, 2024 through October 1, 2024
Interest attributable to contractual interest$71 $29 $138 
Subsequent to December 31, 2025, in January 2026, the company repaid the outstanding balance of the Series 1 promissory notes.
Related Party Notes
The Company entered into unsecured promissory notes with two related parties, the first on August 20, 2024, for a principal amount of $10.0 million, and the second on August 22, 2024, for a principal amount of $2.0 million. The Company entered into amended and restated agreements to amend the terms of these unsecured promissory notes on October 1, 2024. As per the original agreements, the note with the first party contained a loan fee of $1.0 million which was payable with the repayment of the principal amount of the note and the note with the second party contained interest at the rate of 11.50% per annum.
As per the amended note with the first party, the maturity date was extended to the earlier of (i) January 31, 2025 or (ii) the first business day following the date on which the Company has sufficient capital to be able to repay all amounts outstanding under the note and otherwise meet its expected working capital needs as determined by the Company in its reasonable discretion. The loan fee of $1.0 million, required under the original agreement, became due on or around the amendment date and interest will accrue at the rate of 15.99% per annum until paid. The amendment was accounted for as a troubled debt restructuring as the Company was provided a concession through a decrease in the effective interest rate. However, no gain or loss was recognized as a result.
As per the amended note with the second party, the maturity date was extended to January 31, 2025 and the interest rate was increased to 13.50% per annum. Additionally, $1.0 million of the principal amount became due on or around the amendment date.
Interest expense on the related party notes was as follows (in thousands):
SuccessorPredecessor
Year Ended December 31, 2025October 2, 2024 through December 31, 2024January 1, 2024 through October 1, 2024
Total interest expense$419 $611 $932 
In addition to the related party notes above, the Company also had a related party note for $1.0 million through an unsecured promissory note with an additional related party dated May 2, 2024. As per the terms of the executed agreement, the principal amount became due on December 21, 2024 and interest will accrue at the rate of 8.00% per annum. Upon maturity, the Company is required to repay the outstanding principal amount of $1.0 million and a loan fee equal to approximately $0.1 million.
On March 20, 2025, in connection with the issuance of Series C Preferred Stock (as defined below), the Company extinguished the outstanding amount of related party notes. The Company recognized a loss $3.5 million in Loss on extinguishment of related party debt on the consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2025.
WTI Facility
On October 22, 2024, the Company entered into a term loan with WTI Fund X, Inc. and WTI Fund XI, Inc., (collectively, “WTI Lenders”). The terms of the loan provides for a term loan facility in the aggregate principal amount of up to $50.0 million (the "WTI Facility"). The total aggregate principal was available in three separate tranches subject to the Company meeting certain conditions. The Company received $20.0 million (the “First Tranche”) on November 15, 2024. The First Tranche, principal and interest, shall be repaid over a period of 30 months in equal, monthly installments, commencing after an initial 12-month period of interest-only monthly payments, resulting in a total term of 42 months. The funds under each of the Second Tranche and the Third Tranche are no longer available to the Company.
Borrowings under the WTI Facility will accrue interest at a rate per annum equal to the greater of (i) the “prime rate” of interest, as published by The Wall Street Journal on the date that the WTI Lenders prepare the promissory notes for the borrowings under such tranche, plus 5% and (ii) 13.50% and will amortize, after an interest-only period of twelve months in the case of the First Tranche in equal monthly installments over a period of thirty months. Obligations are secured by a lien on the majority of the assets of Innventure LLC and Innventure, Inc.
On March 21, 2025, in connection with the issuance of the first tranche of Convertible Debentures (as further described below) to Yorkville, the Company and Innventure LLC entered into a consent (the “Consent”) with WTI Fund X, LLC and WTI Fund XI, LLC (the “WTI Holders”) and the WTI Lenders, modifying the WTI Facility. Specifically, under the Consent, the Company and the WTI Lenders and WTI Holders agreed (i) that from and after the date that the Company receives the initial proceeds from the Convertible Debentures and until such time as such obligations have been paid in full, the Company must maintain at least $5.0 million of cash on deposit; (ii) that effective on the date that the Company receives the initial proceeds from the Convertible Debentures, the 2025 WTI Warrants (as further defined and described in Note 11. Warrants) will become payable to the WTI Lenders and their affiliates; and (iii) to certain additional consent provisions. Such provisions from the Consent became effective on April 14, 2025 when the Company received proceeds from the Convertible Debentures. The modification of the WTI Facility was accounted for as an extinguishment of debt though the WTI Facility remains outstanding, resulting in a loss on extinguishment of $3.5 million recorded on the consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2025. The legal requirement to maintain at least $5.0 million of cash on deposit is presented as Restricted cash on the consolidated balance sheets.
In connection with the WTI Facility, the Company issued the 2024 WTI Warrants and the 2025 WTI Warrants (collectively the “WTI Warrants”) to the WTI Lenders (as further defined and described in Note 11. Warrants). The Company accounted for each of the WTI Warrants as detachable warrants at their fair value. The fair value of the WTI Warrants was recorded as a liability and as a discount to the WTI Facility on the consolidated balance sheets. The WTI Warrants are classified as a liability in accordance with ASC 480, as they represent an instrument that is not an outstanding share and may require the issuer to settle the obligation by transferring assets, specifically cash. The Company is amortizing the discount over the term of the WTI Facility using the straight-line method.
Interest expense on the WTI facility was as follows (in thousands):
SuccessorPredecessor
Year Ended December 31, 2025October 2, 2024 through December 31, 2024January 1, 2024 through October 1, 2024
Interest attributable to contractual interest$2,738 $352 $— 
Interest attributable to amortization of issuance costs and discounts
2,111 248 — 
Total interest expense$4,849 $600 $ 
Convertible Debentures
On March 25, 2025, the Company entered into a securities purchase agreement (“Existing Purchase Agreement”) with Yorkville related to the issuance and sale of convertible debentures (“Existing Convertible Debentures” collectively with the New Convertible Debentures defined below, the “Convertible Debentures”) with an aggregate principal amount of up to $30.0 million. The Existing Convertible Debentures are convertible into shares of Common Stock and contain certain features that represent embedded derivatives, which are bifurcated and included within Prepaid expenses and other current assets on the consolidated balance sheets. The Company issued the aggregate principal amount of the Existing Convertible Debentures in two tranches tied to separate reporting and filing requirements.
On April 14, 2025, the Company issued the first tranche of the Existing Convertible Debentures with a principal amount of $20.0 million, resulting in cash proceeds to the Company of $18.0 million, representing an original issue discount of 10%. The first tranche was scheduled to be repaid in twelve monthly payments with a 5% payment premium due to the lender with each payment. Also on April 14, 2025, the Company issued two warrants (the “2025 WTI Warrants”) to purchase, at a price of $0.01 per share (subject to certain limitations and adjustment), up to an aggregate total of 495,074 shares of Common Stock, as of the date of issuance and December 31, 2025 (subject to future adjustments to the number and type of shares pursuant to the 2025 WTI Warrants), to the WTI Holders. Each of the 2025 WTI Warrants is exercisable through March 31, 2035.
On May 15, 2025, the Company issued the second tranche of the Existing Convertible Debentures with a principal amount of $10.0 million, resulting in cash proceeds to the Company of $9.0 million, representing an original issue discount of 10%. The second tranche was scheduled to be repaid in eleven monthly payments with a 5% payment premium due to the lender with each payment. There is no contractual interest associated with amounts outstanding for the Existing Convertible Debentures for the year ended December 31, 2025.
On September 15, 2025, the Company entered into an additional amendment to the Existing Purchase Agreement for the Existing Convertible Debentures (the “September 2025 Amendment”). Pursuant to the September 2025 Amendment, the Company and Yorkville agreed to amend the definition of conversion price so that the fixed price of $10.00 was reduced to $7.00 and a floor price of $1.59 was implemented. Additionally, the monthly payments applicable to the Existing Convertible Debentures were removed and replaced with repayment due upon maturity in connection with the early repayment of the approximately $2.0 million. The payment premium on this payment was waived. However, payments and related payment premiums resume should the Innventure stock price fall below the floor price, the Company issues in excess of 99% of Common Stock under the exchange cap or Yorkville is unable to utilize a registration statement to resell shares of Common Stock.
On September 15, 2025, the Company entered into a securities purchase agreement (the “Securities Purchase Agreement”) with Yorkville for up to $15.0 million in convertible debentures (“New Convertible Debentures”), issuable in two tranches. The first tranche of $10.0 million was issued with a 10% original issue discount, yielding $9.0 million in net proceeds, and bears 5% annual interest, with repayment due September 15, 2026. The debentures are convertible into Common Stock and contain certain features that represent embedded derivatives which are bifurcated and included within Prepaid expenses and other current assets on the condensed consolidated balance sheets.
On November 12, 2025, the Company issued the second tranche of the New Convertible Debentures for $5.0 million. The debentures were issued with a 10% original issue discount, yielding $4.5 million in net proceeds, bear 5% annual interest, and mature on September 15, 2026.
The September 2025 Amendment and first and second tranche of the New Convertible Debentures were accounted for collectively as a troubled debt restructuring. The Company determined that a concession was provided based on a decrease in the effective interest rate when compared to the original terms of the Existing Convertible Debentures. Under the troubled debt restructuring a loss on extinguishment of debt of $12.6 million was recorded on the consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2025.
During the year ended December 31, 2025, the Company issued 997,573 shares of its Common Stock pursuant to the SEPA in payment of $4.9 million of principal and $0.2 million of payment premium for the Convertible Debentures. Also, the Company issued 10,005,859 shares of Common Stock due to the exercise of conversion option by Yorkville for a principal amount of $30.7 million of the Convertible Debentures. For further information on this conversion, see Note 13. Stockholders' Equity. During the year ended December 31, 2025 the Company made cash payments toward the Convertible Debentures totaling $3.4 million of principal and $0.1 million of payment premium.
Subsequent to December 31, 2025, on January 27, 2026, the Company issued 304,377 shares of Common Stock due to the exercise of conversion option by Yorkville for a principal amount of $1.0 million of the Convertible Debentures. Additionally, we made a cash payment of $5.5 million inclusive of principal, interest and fees, satisfying the Convertible Debentures in full.
Interest expense on the Convertible Debentures was as follows (in thousands):
SuccessorPredecessor
Year Ended December 31, 2025Period from October 2, 2024 through December 31, 2024Period from January 1 2024 through October 1, 2024
Interest attributable to contractual interest$231 $— $— 
Interest attributable to amortization of issuance costs
4,279 — — 
Total interest expense$4,510 $ $ 
Term Convertible Notes
At various dates in June and July of 2025, Accelsius entered into unsecured convertible notes with various other parties (the “Term Convertible Notes”) for a total principal amount of $7.8 million. The Term Convertible Notes have a stated maturity date of December 31, 2026 and bear interest at the annual applicable federal rate published by the Internal Revenue Service.
The Term Convertible Notes, which are subordinated to the WTI Facility, are convertible at the option of the lenders, starting January 2, 2026, for all amounts due under the notes at the time of conversion, into Accelsius’ Series A Units at a price per unit equal to $12.18. For as long as any portion of the WTI Facility remains outstanding, the lenders will not demand payment related to this Term Convertible Notes, unless they convert the debt into equity.
The interest expense on the Term Convertible Notes was $0.2 million for the year ended December 31, 2025.
Related Party Convertible Notes
On June 26, 2025, Accelsius entered into an unsecured Convertible Promissory Note (“CPN”) with a related party lender. The maximum principal amount under the CPN is $3.0 million, issuable in three equal draws, upon the request of Accelsius and subject to the related party’s sole discretion. On June 27, 2025, Accelsius received the first $1.0 million draw and on July 24, 2025 received the second $1.0 million draw. The CPN had a stated interest rate of 15% and Accelsius was required to pay an immaterial loan fee (“Loan Fee”) upon maturity, repayment or conversion of this note. On October 8, 2025, the Company repaid the CPN in full due to its related party, amounting to $2.0 million in principal and $0.1 million in interest and loan fees, for a total of $2.1 million.
The CPN was convertible at the option of the related party lender for all amounts due under the Convertible Note, including the Loan Fee, into either preferred units of Accelsius at a price equal to 80% of the next funding round price if Accelsius raises at least $5.0 million from unaffiliated investors, or into common units of Accelsius, if no such funding round occurs before the maturity date, with unit pricing of common units determined by an independent valuation firm.
In June of 2025, Accelsius also entered into unsecured convertible notes (“Related Party Term Convertible Notes”, together with the CPN, the “Related Party Convertible Notes”) with certain investors deemed to be Related Parties (as defined in the Company’s Related Party Transactions Policy) for a total principal amount of $4.2 million. The Related Party Term Convertible Notes have a stated maturity date of December 31, 2026 and bear interest at the annual applicable federal rate published by the Internal Revenue Service.
The Related Party Term Convertible Notes, which are subordinated to the WTI Facility, are convertible at the option of the lenders, starting January 2, 2026, for all amounts due under the notes at the time of conversion, into Accelsius’ Series A Units at a price per unit equal to $12.18. For as long as any portion of the WTI Facility remains outstanding, the Related Party Term Convertible Notes lenders will not demand payment related to the Related Party Term Convertible Notes, unless they convert the debt into equity.
The interest expense on Related Party Convertible Notes, including the amortization of the loan fee, was $0.2 million for the year ended December 31, 2025.
August 2025 Notes
Between August 12, 2025 and September 19, 2025, Accelsius issued unsecured convertible promissory notes (the “August 2025 Notes”) totaling $9.2 million in principal, with $7.3 million in proceeds received by December 31, 2025. The notes bear interest at 6.5% annually, are repayable upon demand after two years and are subordinate to existing senior debt. Upon the Company’s next preferred equity round raising at least $5.0 million from unaffiliated investors, the notes will automatically convert into preferred units at 80% of the unit price, with accompanying warrants exercisable for 0.5 units at 120% of the unit price. On October 2, 2025, the August 2025 Notes were converted into 251,452 Series B-2 units. For further information on this conversion, see Note 13. Stockholders' Equity.
The August 2025 Notes are subordinate to the WTI Facility, Convertible Debentures, Term Convertible Notes and indebtedness of Accelsius owed to Innventure LLC and for as long as any portion of these senior debts remains outstanding, the lenders will not demand payment related to this August 2025 Notes, unless they convert the debt into equity.
The interest expense on the August 2025 Notes was immaterial for the December 31, 2025.
Convertible Promissory Notes
Accelsius previously issued 8% convertible promissory notes (the “2025 Notes”) that can be converted into equity units at the later of a qualified financing event or upon maturity, which is 36-months. A qualified financing event is one or more transactions that results in gross proceeds of at least $2.0 million. Upon the occurrence of a qualified financing event, the 2025 Notes convert to the series of stock issued in that financing at the lesser of (a) a 20% discount or (b) $200.0 million divided by the number of fully diluted units outstanding immediately prior to the financing. This conversion option is accounted for as a derivative instrument and the fair value of such is discussed in Note 4. Fair Value.
On March 31, 2024, the 2025 Notes with a $6.0 million principal balance and $0.8 million of accrued interest were converted into 693,480 Accelsius Series A units at a conversion price of $9.74 per share. The conversion was pursuant to the occurrence of a qualified financing event. The related embedded derivative liability was extinguished in connection with the conversion, resulting in a loss on conversion of $1.1 million recorded on the consolidated statements of operations and comprehensive income (loss) in the Predecessor period from January 1, 2024 through October 1, 2024.
Interest expense on the 2025 Notes was as follows (in thousands):
SuccessorPredecessor
Year Ended December 31, 2025Period from October 2, 2024 through December 31, 2024Period from January 1, 2024 through October 1, 2024
Interest attributable to contractual interest$— $— $120 
Interest attributable to amortization of implied discounts— — 231 
Total interest expense$ $ $351 

Historical Timeline

Fiscal YearFiled
2025Mar 30, 2026Showing above
2024Apr 14, 2025

About Debt Disclosures

Debt disclosures detail a company's borrowing structure — the types of instruments, interest rates, maturity schedule, and covenant restrictions that define its financial obligations and flexibility. This section is essential for assessing refinancing risk, interest rate exposure, and the margin of safety against financial distress.

Key signals: the maturity schedule reveals concentration risk — large maturities within 1-2 years during tight credit markets can force dilutive refinancing or asset sales. Compare the fair value of debt against carrying amount to gauge whether the market views the company's credit risk differently than the balance sheet suggests. Watch covenant compliance disclosures for tightening cushions, especially leverage and interest coverage ratios. Variable-rate debt exposure quantifies sensitivity to interest rate changes. Secured versus unsecured mix affects recovery rates and future borrowing capacity. Compare net debt-to-EBITDA against industry peers and covenant limits to assess financial health.