Wood River Capital, LLC

SEC source: 0001193125-26-401380 · ownership.xml · nonDerivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · Former 10% Owner

Koch, Inc. · CIK 0002027344 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: The sale was executed in a single block trade at $4.73 per share.

F2 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000950170-24-098705 · ownership.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

Koch, Inc. · CIK 0002027344 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,139,999 shares

Expires 2027-02-18

F1 · security: On August 19, 2024, Wood River Capital, LLC ("Wood River") and Aspen Aerogels, Inc. (the "Issuer") entered into a Note Purchase and Sale Agreement (the "NPA") pursuant to which the Issuer agreed to repurchase all of its outstanding Convertible Senior PIK Toggle Notes due 2027 (the "Notes") from Wood River. The repurchase closed on August 19, 2024.

F2 · derivative.exercise_price: Represents the effective conversion price of $29.936625 per share of the common stock of Issuer, as reported in the Issuer's Current Report on Form 8-K, filed on November 29, 2022.

F3 · shares: Represents the aggregate capitalized principal amount of the Notes, including paid-in-kind interest, capitalized through, but not including, the interest payment date of June 30, 2024.

F4 · derivative.exercise_date: Prior to their repurchase by the Issuer, the Notes were convertible at any time and matured on February 18, 2027.

F4 · derivative.expiration_date: Prior to their repurchase by the Issuer, the Notes were convertible at any time and matured on February 18, 2027.

F5 · derivative.underlying_shares: Represents 4,139,999 shares of the Issuer's common stock issuable upon conversion of the Aggregate Principal Amount based on the effective conversion price of $29.936625 per share.

F6 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), KIGH is beneficially owned by Koch Companies, LLC ("KCLLC"), and KCLLC is beneficially owned by Koch, Inc., in each case by means of ownership of all voting equity instruments. Koch, Inc., KCLLC, KIGH, KIG, KIM and SCC may be deemed to beneficially own the securities beneficially owned by Wood River by virtue of (i) Koch, Inc.'s beneficial ownership of KCLLC, (ii) KCLLC's beneficial ownership of KIGH, (iii) KIGH's beneficial ownership of KIG, (iv) KIG's beneficial ownership of KIM, (v) KIM's beneficial ownership of SCC, and (vi) SCC's beneficial ownership of Wood River.

SEC source: 0000950170-24-079587 · ownership.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 187,732 shares

Expires 2027-02-18

F1 · security: On February 15, 2022, Wood River Capital, LLC ("Wood River") entered into a note purchase agreement (the "NPA") with Aspen Aerogels, Inc. (the "Issuer") relating to the issuance and sale of $100,000,000 in aggregate principal amount of the Issuer's Convertible Senior PIK Toggle Notes due 2027, as amended by Amendment No. 1 to Convertible Senior PIK Toggle Notes Due 2027, dated November 28, 2022, by and between the Issuer and Wood River (as amended, the "Notes"). The Notes are convertible into shares of the Issuer's common stock at Wood River's option at any time until the business day prior to the maturity date.

F2 · derivative.exercise_price: Represents the effective conversion price of $29.936625 per share of the Issuer's common stock as reported in the Issuer's Current Report on Form 8-K, filed on November 29, 2022. The conversion price is subject to adjustment upon the occurrence of certain dilutive events such as stock splits and combinations, stock dividends, mergers and spin-offs.

F3 · kind: On June 13, 2024, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of June 30, 2024 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $5,620,083 aggregate principal amount of the Notes (the "PIK Interest Payment").

F3 · reported_value: On June 13, 2024, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of June 30, 2024 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $5,620,083 aggregate principal amount of the Notes (the "PIK Interest Payment").

F4 · derivative.underlying_shares: Represents 187,732 shares of the Issuer's common stock issuable to Wood River upon conversion of the principal amount represented by the PIK Interest Payment.

F5 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000950170-24-060642 · ownership.xml · nonDerivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,280,426

F1 · price: The sale was executed in a single block trade at $23.50 per share.

F2 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000950170-24-002093 · ownership.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 179,219 shares

Expires 2027-02-18

F1 · security: On February 15, 2022, Wood River Capital, LLC ("Wood River") entered into a note purchase agreement (the "NPA") with Aspen Aerogels, Inc. (the "Issuer") relating to the issuance and sale of $100,000,000 in aggregate principal amount of the Issuer's Convertible Senior PIK Toggle Notes due 2027, as amended by Amendment No. 1 to Convertible Senior PIK Toggle Notes Due 2027, dated November 28, 2022, by and between the Issuer and Wood River (as amended, the "Notes"). The Notes are convertible into shares of the Issuer's common stock at Wood River's option at any time until the business day prior to the maturity date.

F2 · derivative.exercise_price: Represents the effective conversion price of $29.936625 per share of the Issuer's common stock as reported in the Issuer's Current Report on Form 8-K, filed on November 29, 2022. The conversion price is subject to adjustment upon the occurrence of certain dilutive events such as stock splits and combinations, stock dividends, mergers and spin-offs.

F3 · kind: On December 14, 2023, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of December 30, 2023 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $5,365,234 aggregate principal amount of the Notes (the "PIK Interest Payment").

F3 · reported_value: On December 14, 2023, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of December 30, 2023 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $5,365,234 aggregate principal amount of the Notes (the "PIK Interest Payment").

F4 · derivative.underlying_shares: Represents 179,219 shares of the Issuer's common stock issuable to Wood River upon conversion of the principal amount represented by the PIK Interest Payment.

F5 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000950170-23-031507 · ownership.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 171,093 shares

Expires 2027-02-18

F1 · security: On February 15, 2022, Wood River Capital, LLC ("Wood River") entered into a note purchase agreement (the "NPA") with Aspen Aerogels, Inc. (the "Issuer") relating to the issuance and sale of $100,000,000 in aggregate principal amount of the Issuer's Convertible Senior PIK Toggle Notes due 2027, as amended by Amendment No. 1 to Convertible Senior PIK Toggle Notes Due 2027, dated November 28, 2022, by and between the Issuer and Wood River (as amended, the "Notes"). The Notes are convertible into shares of the Issuer's common stock at Wood River's option at any time until the business day prior to the maturity date.

F2 · derivative.exercise_price: Represents the effective conversion price of $29.936625 per share of the Issuer's common stock as reported in the Issuer's Current Report on Form 8-K, filed on November 29, 2022. The conversion price is subject to adjustment upon the occurrence of certain dilutive events such as stock splits and combinations, stock dividends, mergers and spin-offs.

F3 · kind: On June 20, 2023, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of June 30, 2023 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $5,121,942 aggregate principal amount of the Notes (the "PIK Interest Payment").

F3 · reported_value: On June 20, 2023, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of June 30, 2023 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $5,121,942 aggregate principal amount of the Notes (the "PIK Interest Payment").

F4 · derivative.underlying_shares: Represents 171,093 shares of the Issuer's common stock issuable to Wood River upon conversion of the principal amount represented by the PIK Interest Payment.

F5 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000899243-23-001000 · doc4.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 163,334 shares

Expires 2027-02-18

F1 · security: On February 15, 2022, Wood River Capital, LLC ("Wood River") entered into a note purchase agreement (the "NPA") with Aspen Aerogels, Inc. (the "Issuer") relating to the issuance and sale of $100,000,000 in aggregate principal amount of the Issuer's Convertible Senior PIK Toggle Notes due 2027, as amended by Amendment No. 1 to Convertible Senior PIK Toggle Notes Due 2027, dated November 28, 2022, by and between the Issuer and Wood River (as amended, the "Notes"). The Notes are convertible into shares of the Issuer's common stock at Wood River's option at any time until the business day prior to the maturity date.

F2 · derivative.exercise_price: Represents the effective conversion price of $29.936625 per share of the Issuer's common stock as reported in the Issuer's Current Report on Form 8-K, filed on November 29, 2022. The conversion price is subject to adjustment upon the occurrence of certain dilutive events such as stock splits and combinations, stock dividends, mergers and spin-offs.

F3 · kind: On January 4, 2023, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of December 30, 2022 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $4,889,682 aggregate principal amount of the Notes (the "PIK Interest Payment").

F3 · reported_value: On January 4, 2023, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of December 30, 2022 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $4,889,682 aggregate principal amount of the Notes (the "PIK Interest Payment").

F4 · derivative.underlying_shares: Represents 163,334 shares of the Issuer's common stock issuable to Wood River upon conversion of the principal amount represented by the PIK Interest Payment

F5 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000899243-22-037818 · doc4.xml · nonDerivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,780,426

F1 · kind: On November 30, 2022, Aspen Aerogels, Inc. (the "Issuer") announced the pricing of an underwritten public offering of the Issuer's common stock, par value $0.00001 per share ("Public Shares"), at a price to the public of $9.50 per Public Share (the "Offering"). Wood River Capital, LLC ("Wood River") participated in the Offering by purchasing 10,526,316 Public Shares from the underwriters.

F2 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000899243-22-037818 · doc4.xml · derivative · entry 2

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 491,735 shares

Expires 2027-02-18

F3 · derivative.exercise_price: On November 28, 2022, the Issuer and Wood River entered into Amendment No. 1 to Convertible Senior PIK Toggle Note Due 2027 ("Amendment No. 1") to the Convertible Senior PIK Toggle Note Due 2027, dated February 18, 2022 (as amended by Amendment No. 1, the "Convertible Notes"), whereby the initial conversion price was reduced by $5.00 from $34.936625 per Public Share to $29.936625 per Public Share by increasing the initial conversion rate from 28.623257 Public Shares per $1,000 principal amount of the Convertible Notes to 33.400100 Public Shares per $1,000 principal amount of the Convertible Notes. Wood River was not issued additional principal amount of the Convertible Notes in connection with Amendment No. 1, and the transaction in Table II is reported solely to reflect the change in conversion price on the Convertible Notes as a result of such amendment.

F3 · kind: On November 28, 2022, the Issuer and Wood River entered into Amendment No. 1 to Convertible Senior PIK Toggle Note Due 2027 ("Amendment No. 1") to the Convertible Senior PIK Toggle Note Due 2027, dated February 18, 2022 (as amended by Amendment No. 1, the "Convertible Notes"), whereby the initial conversion price was reduced by $5.00 from $34.936625 per Public Share to $29.936625 per Public Share by increasing the initial conversion rate from 28.623257 Public Shares per $1,000 principal amount of the Convertible Notes to 33.400100 Public Shares per $1,000 principal amount of the Convertible Notes. Wood River was not issued additional principal amount of the Convertible Notes in connection with Amendment No. 1, and the transaction in Table II is reported solely to reflect the change in conversion price on the Convertible Notes as a result of such amendment.

F3 · price: On November 28, 2022, the Issuer and Wood River entered into Amendment No. 1 to Convertible Senior PIK Toggle Note Due 2027 ("Amendment No. 1") to the Convertible Senior PIK Toggle Note Due 2027, dated February 18, 2022 (as amended by Amendment No. 1, the "Convertible Notes"), whereby the initial conversion price was reduced by $5.00 from $34.936625 per Public Share to $29.936625 per Public Share by increasing the initial conversion rate from 28.623257 Public Shares per $1,000 principal amount of the Convertible Notes to 33.400100 Public Shares per $1,000 principal amount of the Convertible Notes. Wood River was not issued additional principal amount of the Convertible Notes in connection with Amendment No. 1, and the transaction in Table II is reported solely to reflect the change in conversion price on the Convertible Notes as a result of such amendment.

F3 · derivative.exercise_date: On November 28, 2022, the Issuer and Wood River entered into Amendment No. 1 to Convertible Senior PIK Toggle Note Due 2027 ("Amendment No. 1") to the Convertible Senior PIK Toggle Note Due 2027, dated February 18, 2022 (as amended by Amendment No. 1, the "Convertible Notes"), whereby the initial conversion price was reduced by $5.00 from $34.936625 per Public Share to $29.936625 per Public Share by increasing the initial conversion rate from 28.623257 Public Shares per $1,000 principal amount of the Convertible Notes to 33.400100 Public Shares per $1,000 principal amount of the Convertible Notes. Wood River was not issued additional principal amount of the Convertible Notes in connection with Amendment No. 1, and the transaction in Table II is reported solely to reflect the change in conversion price on the Convertible Notes as a result of such amendment.

F3 · derivative.underlying_shares: On November 28, 2022, the Issuer and Wood River entered into Amendment No. 1 to Convertible Senior PIK Toggle Note Due 2027 ("Amendment No. 1") to the Convertible Senior PIK Toggle Note Due 2027, dated February 18, 2022 (as amended by Amendment No. 1, the "Convertible Notes"), whereby the initial conversion price was reduced by $5.00 from $34.936625 per Public Share to $29.936625 per Public Share by increasing the initial conversion rate from 28.623257 Public Shares per $1,000 principal amount of the Convertible Notes to 33.400100 Public Shares per $1,000 principal amount of the Convertible Notes. Wood River was not issued additional principal amount of the Convertible Notes in connection with Amendment No. 1, and the transaction in Table II is reported solely to reflect the change in conversion price on the Convertible Notes as a result of such amendment.

F2 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000899243-22-035730 · doc4.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,940,667

Underlying: Common Stock · 84,171 shares

Expires 2027-02-18

F1 · security: On February 15, 2022, Wood River Capital, LLC ("Wood River") entered into a note purchase agreement (the "NPA") with Aspen Aerogels, Inc. (the "Issuer") relating to the issuance and sale of $100,000,000 in aggregate principal amount of the Issuer's Convertible Senior PIK Toggle Notes due 2027 (the "Notes"). The Notes were issued to Wood River on February 18, 2022 and are convertible into shares of the Issuer's common stock at Wood River's option at any time until the business day prior to the maturity date, based on an initial conversion rate of 28.623257 shares per $1,000 principal amount of the Notes, subject to customary anti-dilution and other adjustments.

F2 · derivative.exercise_price: Represents the effective conversion price per share of common stock of the Issuer as reported in the Issuer's Form 10-Q for the quarterly period ending September 30, 2022, filed on November 7, 2022. The conversion price is subject to adjustment upon the occurrence of certain dilutive events such as stock splits and combinations, stock dividends, mergers and spin-offs.

F3 · kind: On July 6, 2022, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes as of June 30, 2022 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $2,940,667 aggregate principal amount of the Notes (the "PIK Interest Payment").

F3 · shares: On July 6, 2022, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes as of June 30, 2022 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $2,940,667 aggregate principal amount of the Notes (the "PIK Interest Payment").

F4 · derivative.underlying_shares: Represents 84,171 shares of the Issuer's common stock issuable to Wood River upon conversion of the principal amount represented by the PIK Interest Payment.

F5 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000899243-22-035726 · doc4.xml · derivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

KOCH INDUSTRIES INC · CIK 0000923338 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,987,000

Underlying: Common Stock · 154,350 shares

Expires 2026-06-20

F1 · security: Eos Energy Enterprises, Inc. (the "Issuer") reissued to Spring Creek Capital, LLC ("Spring Creek") $100,000,000 in aggregate principal amount of the Issuer's 5%/6% Convertible Senior PIK Toggle Notes due 2026 (the "Notes") pursuant to an indenture with Wilmington Trust, National Association, as trustee, dated April 7, 2022. On May 2, 2022, Spring Creek transferred the Notes to Wood River Capital, LLC ("Wood River"). The Notes are convertible into shares of the Issuer's common stock at the holder's option at any time until the business day prior to the maturity date, based on an initial conversion rate of 49.9910 shares per $1,000 principal amount of the Notes, subject to customary anti-dilution and other adjustments.

F2 · derivative.exercise_price: Represents the effective conversion price per share of common stock based on a conversion rate of 49.9910 shares per $1,000 principal amount of the Notes.

F3 · kind: On June 14, 2022, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of June 30, 2022 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $3,087,000 aggregate principal amount of the Notes (the "PIK Interest Payment").

F3 · shares: On June 14, 2022, the Issuer notified Wood River that, in connection with the interest payment on the Notes, the Issuer had elected to have all accrued and unpaid interest on the Notes to, but not including, the interest payment date of June 30, 2022 paid in-kind as an increase to the principal amount, which resulted in Wood River acquiring an additional $3,087,000 aggregate principal amount of the Notes (the "PIK Interest Payment").

F4 · derivative.underlying_shares: Represents 154,350 shares of the Issuer's common stock issuable to Wood River upon conversion of the principal amount represented by the PIK Interest Payment.

F5 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.

SEC source: 0000899243-22-016317 · doc4.xml · nonDerivative · entry 1

Wood River Capital, LLC · CIK 0001888978 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,324,449

F1 · kind: On May 2, 2022, Spring Creek Capital, LLC ("Spring Creek") transferred 3,462,124 shares of common stock of Aspen Aerogels Inc. (the "Issuer") to Wood River Capital, LLC ("Wood River"). Each of Spring Creek and Wood River are indirectly beneficially owned by Koch Industries, Inc. Beneficial ownership is presented excluding non-voting preferred equity securities. No consideration was paid by Wood River to Spring Creek in connection with this transfer.

F2 · ownership.direct: Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of common stock of the Issuer held by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.