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Momentus Inc.

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6834
SEC CIK
0001781162
Parsed reports
175

Last 12 months

Inside the activity.

5 purchase rows · 0 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 202650
Jun 202600
Jul 202600
Aug 202600
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
March 20, 2024 Filed Mar 22, 2024 21:16 UTC
SCHWARZ ROBERT EChief Technology Officer
Tax withholdingClass A Common Stock 902 $0.45 $407.79
Disclosure

SEC source: 0001781162-24-000003 · wk-form4_1711142194.xml · nonDerivative · entry 4

SCHWARZ ROBERT E · CIK 0001905262 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,685

F2 · shares: These shares were withheld by the Issuer in order to satisfy certain tax withholding obligations in connection with the issuance of vested restricted stock units.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
March 20, 2024 Filed Mar 22, 2024 21:16 UTC
SCHWARZ ROBERT EChief Technology Officer
Exercise / conversionClass A Common Stock 2,200 $0.00 $0.00
Disclosure

SEC source: 0001781162-24-000003 · wk-form4_1711142194.xml · nonDerivative · entry 3

SCHWARZ ROBERT E · CIK 0001905262 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,587

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
March 20, 2024 Filed Mar 22, 2024 21:16 UTC
SCHWARZ ROBERT EChief Technology Officer
Tax withholdingClass A Common Stock 456 $0.45 $206.16
Disclosure

SEC source: 0001781162-24-000003 · wk-form4_1711142194.xml · nonDerivative · entry 2

SCHWARZ ROBERT E · CIK 0001905262 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,387

F2 · shares: These shares were withheld by the Issuer in order to satisfy certain tax withholding obligations in connection with the issuance of vested restricted stock units.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
March 20, 2024 Filed Mar 22, 2024 21:16 UTC
SCHWARZ ROBERT EChief Technology Officer
Exercise / conversionClass A Common Stock 1,111 $0.00 $0.00
Disclosure

SEC source: 0001781162-24-000003 · wk-form4_1711142194.xml · nonDerivative · entry 1

SCHWARZ ROBERT E · CIK 0001905262 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,843

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
December 01, 2023 Filed Dec 5, 2023 21:44 UTC
Kabot BrianDirector
SaleClass A Common Stock 400 $2.60 $1,040.00
Disclosure

SEC source: 0001781162-23-000064 · wk-form4_1701812641.xml · nonDerivative · entry 1

Kabot Brian · CIK 0001786113 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,782

Read SEC document
November 20, 2023 Filed Nov 22, 2023 16:43 UTC
Ney PaulChief Legal Officer & Corp.Sec
Exercise / conversionRestricted Stock Units · Derivative 1,375 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001781162-23-000062 · wk-form4_1700689392.xml · derivative · entry 3

Ney Paul · CIK 0001885907 · Chief Legal Officer & Corp.Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,749

Underlying: Class A Common Stock · 1,375 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The RSU Award will vest in four equal annual installments starting on November 20, 2022, subject to the Reporting Person's continued Employment through each such vesting date.

F3 · derivative.expiration_date: The RSU Award will vest in four equal annual installments starting on November 20, 2022, subject to the Reporting Person's continued Employment through each such vesting date.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
November 20, 2023 Filed Nov 22, 2023 16:43 UTC
Ney PaulChief Legal Officer & Corp.Sec
Tax withholdingClass A Common Stock 335 $2.77 $927.95
Disclosure

SEC source: 0001781162-23-000062 · wk-form4_1700689392.xml · nonDerivative · entry 2

Ney Paul · CIK 0001885907 · Chief Legal Officer & Corp.Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,049

F2 · shares: These shares were withheld by the Issuer in order to satisfy certain tax withholding obligations in connection with the issuance of vested restricted stock units.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
November 20, 2023 Filed Nov 22, 2023 16:43 UTC
Ney PaulChief Legal Officer & Corp.Sec
Exercise / conversionClass A Common Stock 1,375 $0.00 $0.00
Disclosure

SEC source: 0001781162-23-000062 · wk-form4_1700689392.xml · nonDerivative · entry 1

Ney Paul · CIK 0001885907 · Chief Legal Officer & Corp.Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Reflects a 1-for-50 reverse stock split that was effected by Momentus Inc. on August 23, 2023.

Read SEC document
November 01, 2023 Filed Nov 3, 2023 20:46 UTC
Kabot BrianDirector
SaleClass A Common Stock 400 $3.50 $1,400.00
Disclosure

SEC source: 0001781162-23-000054 · wk-form4_1699044393.xml · nonDerivative · entry 1

Kabot Brian · CIK 0001786113 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,182

Read SEC document
October 02, 2023 Filed Oct 4, 2023 20:25 UTC
Kabot BrianDirector
SaleClass A Common Stock 400 $2.17 $868.28
Disclosure

SEC source: 0001781162-23-000053 · wf-form4_169645109130250.xml · nonDerivative · entry 1

Kabot Brian · CIK 0001786113 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,582

F1 · price: This transaction was executed in multiple trades at prices ranging from $2.11 to $2.21. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provideupon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
September 26, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 1,327 $1.91 $2,538.15
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 15

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 4,679

F9 · price: The price of $1.9127 per share represents a weighted average of purchase prices ranging from $1.76 to $2.01 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 26, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 3,332 $1.91 $6,373.12
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 14

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 11,745

F9 · price: The price of $1.9127 per share represents a weighted average of purchase prices ranging from $1.76 to $2.01 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 26, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 1,344 $1.91 $2,570.67
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 13

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 4,734

F9 · price: The price of $1.9127 per share represents a weighted average of purchase prices ranging from $1.76 to $2.01 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 26, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 6,819 $1.91 $13,042.70
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 12

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 24,034

F9 · price: The price of $1.9127 per share represents a weighted average of purchase prices ranging from $1.76 to $2.01 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 26, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 17,202 $1.91 $32,902.27
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 11

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 60,635

F9 · price: The price of $1.9127 per share represents a weighted average of purchase prices ranging from $1.76 to $2.01 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 25, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 2,412 $2.04 $4,931.33
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 10

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 6,006

F8 · price: The price of $2.0445 per share represents a weighted average of purchase prices ranging from $1.87 to $2.39 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 25, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 6,056 $2.04 $12,381.49
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 9

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 15,077

F8 · price: The price of $2.0445 per share represents a weighted average of purchase prices ranging from $1.87 to $2.39 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 25, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 2,442 $2.04 $4,992.67
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 8

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 6,078

F8 · price: The price of $2.0445 per share represents a weighted average of purchase prices ranging from $1.87 to $2.39 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 25, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 12,392 $2.04 $25,335.44
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 7

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 30,853

F8 · price: The price of $2.0445 per share represents a weighted average of purchase prices ranging from $1.87 to $2.39 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 25, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 31,261 $2.04 $63,913.11
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 6

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 77,837

F8 · price: The price of $2.0445 per share represents a weighted average of purchase prices ranging from $1.87 to $2.39 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 22, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 1,048 $2.39 $2,500.74
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 5

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 8,418

F7 · price: The price of $2.3862 per share represents a weighted average of purchase prices ranging from $2.26 to $2.76 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 22, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 2,630 $2.39 $6,275.71
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 4

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 21,133

F7 · price: The price of $2.3862 per share represents a weighted average of purchase prices ranging from $2.26 to $2.76 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 22, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 1,060 $2.39 $2,529.37
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 3

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 8,520

F7 · price: The price of $2.3862 per share represents a weighted average of purchase prices ranging from $2.26 to $2.76 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 22, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 5,381 $2.39 $12,840.14
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 2

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 43,245

F7 · price: The price of $2.3862 per share represents a weighted average of purchase prices ranging from $2.26 to $2.76 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 22, 2023 Filed Sep 26, 2023 18:18 UTC
Sloss Dakin10% owner
SaleClass A common stock 13,574 $2.39 $32,390.28
Disclosure

SEC source: 0001062993-23-018503 · form4.xml · nonDerivative · entry 1

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 109,098

F7 · price: The price of $2.3862 per share represents a weighted average of purchase prices ranging from $2.26 to $2.76 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 14, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 6,255 $3.36 $20,990.53
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 15

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 9,466

F9 · price: The price of $3.3558 per share represents a weighted average of purchase prices ranging from $3.10 to $4.23 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 14, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 15,702 $3.36 $52,692.77
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 14

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 23,763

F9 · price: The price of $3.3558 per share represents a weighted average of purchase prices ranging from $3.10 to $4.23 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 14, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 6,331 $3.36 $21,245.57
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 13

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 9,580

F9 · price: The price of $3.3558 per share represents a weighted average of purchase prices ranging from $3.10 to $4.23 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 14, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 32,129 $3.36 $107,818.50
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 12

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 48,626

F9 · price: The price of $3.3558 per share represents a weighted average of purchase prices ranging from $3.10 to $4.23 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 14, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 81,055 $3.36 $272,004.37
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 11

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 122,672

F9 · price: The price of $3.3558 per share represents a weighted average of purchase prices ranging from $3.10 to $4.23 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 13, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 1,438 $4.51 $6,488.98
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 10

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 15,721

F8 · price: The price of $4.5125 per share represents a weighted average of purchase prices ranging from $4.05 to $5.00 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 13, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 3,610 $4.51 $16,290.13
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 9

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 39,465

F8 · price: The price of $4.5125 per share represents a weighted average of purchase prices ranging from $4.05 to $5.00 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 13, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 1,456 $4.51 $6,570.20
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 8

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 15,911

F8 · price: The price of $4.5125 per share represents a weighted average of purchase prices ranging from $4.05 to $5.00 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 13, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 7,387 $4.51 $33,333.84
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 7

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 80,755

F8 · price: The price of $4.5125 per share represents a weighted average of purchase prices ranging from $4.05 to $5.00 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 13, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 18,637 $4.51 $84,099.46
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 6

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 203,727

F8 · price: The price of $4.5125 per share represents a weighted average of purchase prices ranging from $4.05 to $5.00 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 12, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 88 $5.19 $456.59
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 5

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 17,159

F7 · price: The price of $5.1885 per share represents a weighted average of purchase prices ranging from $4.74 to $5.45 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 12, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 220 $5.19 $1,141.47
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 4

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 43,075

F7 · price: The price of $5.1885 per share represents a weighted average of purchase prices ranging from $4.74 to $5.45 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 12, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 89 $5.19 $461.78
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 3

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 17,367

F7 · price: The price of $5.1885 per share represents a weighted average of purchase prices ranging from $4.74 to $5.45 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

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September 12, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 450 $5.19 $2,334.83
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 2

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 88,142

F7 · price: The price of $5.1885 per share represents a weighted average of purchase prices ranging from $4.74 to $5.45 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 12, 2023 Filed Sep 14, 2023 18:17 UTC
Sloss Dakin10% owner
SaleClass A common stock 1,136 $5.19 $5,894.14
Disclosure

SEC source: 0001062993-23-018036 · form4.xml · nonDerivative · entry 1

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 222,364

F7 · price: The price of $5.1885 per share represents a weighted average of purchase prices ranging from $4.74 to $5.45 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 11, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 349 $5.57 $1,943.83
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 15

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 17,247

F9 · price: The price of $5.5697 per share represents a weighted average of purchase prices ranging from $5.271 to $5.81 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 11, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 877 $5.57 $4,884.63
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 14

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 43,295

F9 · price: The price of $5.5697 per share represents a weighted average of purchase prices ranging from $5.271 to $5.81 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 11, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 354 $5.57 $1,971.67
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 13

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 17,456

F9 · price: The price of $5.5697 per share represents a weighted average of purchase prices ranging from $5.271 to $5.81 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 11, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 1,794 $5.57 $9,992.04
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 12

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 88,592

F9 · price: The price of $5.5697 per share represents a weighted average of purchase prices ranging from $5.271 to $5.81 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 11, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 4,526 $5.57 $25,208.46
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 11

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 223,500

F9 · price: The price of $5.5697 per share represents a weighted average of purchase prices ranging from $5.271 to $5.81 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 08, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 484 $5.81 $2,814.22
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 10

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Prime Movers Growth Fund I LP

Disclosed balance after: 17,596

F8 · price: The price of $5.8145 per share represents a weighted average of purchase prices ranging from $5.445 to $6.558 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F5 · ownership.nature: Held by Prime Movers Growth Fund I LP ("PM Growth"). Prime Movers Growth GP I LLC ("PM Growth GP") is the general partner of PM Growth.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 08, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 1,215 $5.81 $7,064.62
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 9

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 44,172

F8 · price: The price of $5.8145 per share represents a weighted average of purchase prices ranging from $5.445 to $6.558 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F4 · ownership.nature: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 08, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A Common Stock 490 $5.81 $2,849.11
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 8

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 17,810

F8 · price: The price of $5.8145 per share represents a weighted average of purchase prices ranging from $5.445 to $6.558 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F3 · ownership.nature: Held by Momentus PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 08, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A common stock 2,485 $5.81 $14,449.03
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 7

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 90,386

F8 · price: The price of $5.8145 per share represents a weighted average of purchase prices ranging from $5.445 to $6.558 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F2 · ownership.nature: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6 · ownership.nature: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document
September 08, 2023 Filed Sep 11, 2023 18:05 UTC
Sloss Dakin10% owner
SaleClass A common stock 6,269 $5.81 $36,451.10
Disclosure

SEC source: 0001062993-23-017915 · form4.xml · nonDerivative · entry 6

Prime Movers Lab Fund I LP · CIK 0001751631 · 10% owner

Sloss Dakin · CIK 0001875411 · 10% owner

Prime Movers Growth Fund I LP · CIK 0001838981 · 10% owner

Momentus PML SPV 1 LP · CIK 0001780632 · 10% owner

MOMENTUS PML SPV 2 LP · CIK 0001819327 · 10% owner

Momentus PML SPV 3 LP · CIK 0001853076 · 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: 228,026

F8 · price: The price of $5.8145 per share represents a weighted average of purchase prices ranging from $5.445 to $6.558 per share. The reporting person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

F1 · ownership.direct: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6 · ownership.direct: Dakin Sloss is the manager of PML GP, PML GP II and PM Growth GP, and may be deemed to beneficially own the securities held by PML, PML SPV 1, PML SPV 2, PML SPV 3 and PM Growth. Mr. Sloss disclaims any beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.