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Momentus PML SPV 3 LP

Disclosed activity across 1 company

Tapewire entity
109454
SEC CIK
0001853076

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Momentus Inc.MNTS · Entity 683410% ownerSeptember 22, 2023September 26, 2023

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A common stockSEC Table I · non-derivativeDirect77,837 Last balance in matching sequence After 2023-09-25 transaction · row 6 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2023-09-22 · Sale · Disposed 13,574 · Balance 109,098

F7: 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: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6: 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.

Row 6 · 2023-09-25 · Sale · Disposed 31,261 · Balance 77,837

F8: 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: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6: 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.

Class A common stockSEC Table I · non-derivativeIndirectHeld by Momentus PML SPV 1 LP30,853 Last balance in matching sequence After 2023-09-25 transaction · row 7 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 2 · 2023-09-22 · Sale · Disposed 5,381 · Balance 43,245

F7: 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: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6: 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.

Row 7 · 2023-09-25 · Sale · Disposed 12,392 · Balance 30,853

F8: 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: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6: 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.

Class A common stockSEC Table I · non-derivativeIndirectHeld by Momentus PML SPV 2 LP8,520 Reported balance After 2023-09-22 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2023-09-22 · Sale · Disposed 1,060 · Balance 8,520

F7: 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: 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: 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.

Class A common stockSEC Table I · non-derivativeIndirectHeld by Momentus PML SPV 3 LP21,133 Reported balance After 2023-09-22 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 4 · 2023-09-22 · Sale · Disposed 2,630 · Balance 21,133

F7: 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: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6: 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.

Class A common stockSEC Table I · non-derivativeIndirectHeld by Prime Movers Growth Fund I LP8,418 Reported balance After 2023-09-22 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 5 · 2023-09-22 · Sale · Disposed 1,048 · Balance 8,418

F7: 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: 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: 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.

Class A Common StockSEC Table I · non-derivativeIndirectHeld by Momentus PML SPV 2 LP4,734 Last balance in matching sequence After 2023-09-26 transaction · row 13 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 8 · 2023-09-25 · Sale · Disposed 2,442 · Balance 6,078

F8: 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: 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: 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.

Row 13 · 2023-09-26 · Sale · Disposed 1,344 · Balance 4,734

F9: 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: 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: 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.

Class A Common StockSEC Table I · non-derivativeIndirectHeld by Momentus PML SPV 3 LP11,745 Last balance in matching sequence After 2023-09-26 transaction · row 14 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 9 · 2023-09-25 · Sale · Disposed 6,056 · Balance 15,077

F8: 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: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6: 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.

Row 14 · 2023-09-26 · Sale · Disposed 3,332 · Balance 11,745

F9: 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: Held by Momentus PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6: 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.

Class A Common StockSEC Table I · non-derivativeIndirectHeld by Prime Movers Growth Fund I LP4,679 Last balance in matching sequence After 2023-09-26 transaction · row 15 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 10 · 2023-09-25 · Sale · Disposed 2,412 · Balance 6,006

F8: 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: 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: 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.

Row 15 · 2023-09-26 · Sale · Disposed 1,327 · Balance 4,679

F9: 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: 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: 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.

Class A Common StockSEC Table I · non-derivativeDirect60,635 Reported balance After 2023-09-26 transaction · row 11 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 11 · 2023-09-26 · Sale · Disposed 17,202 · Balance 60,635

F9: 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: Held by Prime Movers Lab Fund I LP ("PML"). Prime Movers Lab GP I LLC ("PML GP") is the general partner of PML.

F6: 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.

Class A Common StockSEC Table I · non-derivativeIndirectHeld by Momentus PML SPV 1 LP24,034 Reported balance After 2023-09-26 transaction · row 12 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 12 · 2023-09-26 · Sale · Disposed 6,819 · Balance 24,034

F9: 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: Held by Momentus PML SPV 1 LP ("PML SPV 1"). PML GP is the general partner of PML SPV 1.

F6: 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.

Filing footnotes · ownership attribution and instrument terms

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

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

F3: 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.

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

F5: 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: 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.

F7: 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.

F8: 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.

F9: 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.

Transaction history

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 09, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 2,155 $3.10 $6,690.63
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 7

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 960,830

F8 · price: The price of $3.1047 per share represents a weighted average of purchase prices ranging from $3.03 to $3.20 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
June 09, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,484 $3.10 $41,863.77
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 6

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 6,011,780

F8 · price: The price of $3.1047 per share represents a weighted average of purchase prices ranging from $3.03 to $3.20 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
June 09, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 34,016 $3.10 $105,609.48
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 5

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Direct

Disclosed balance after: 15,166,661

F8 · price: The price of $3.1047 per share represents a weighted average of purchase prices ranging from $3.03 to $3.20 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
June 08, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 9,718 $3.34 $32,450.35
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 4

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 2,388,468

F7 · price: The price of $3.3392 per share represents a weighted average of purchase prices ranging from $3.155 to $3.675 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
June 08, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 3,918 $3.34 $13,082.99
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 3

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 962,985

F7 · price: The price of $3.3392 per share represents a weighted average of purchase prices ranging from $3.155 to $3.675 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
June 08, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 24,515 $3.34 $81,860.49
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 2

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 6,025,264

F7 · price: The price of $3.3392 per share represents a weighted average of purchase prices ranging from $3.155 to $3.675 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
June 08, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 61,849 $3.34 $206,526.18
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 1

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

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

Sloss Dakin · CIK 0001875411 · 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: Not disclosed

Ownership: Direct

Disclosed balance after: 15,200,677

F7 · price: The price of $3.3392 per share represents a weighted average of purchase prices ranging from $3.155 to $3.675 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
February 16, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 24,188 $2.69 $65,094.75
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 15

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 949,254

F9 · price: The price of $2.6912 per share represents a weighted average of purchase prices ranging from $2.585 to $2.845 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
February 16, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 61,109 $2.69 $164,456.54
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 14

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 2,398,186

F9 · price: The price of $2.6912 per share represents a weighted average of purchase prices ranging from $2.585 to $2.845 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 16, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 24,638 $2.69 $66,305.79
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 13

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 966,903

F9 · price: The price of $2.6912 per share represents a weighted average of purchase prices ranging from $2.585 to $2.845 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 16, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 154,156 $2.69 $414,864.63
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 12

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 6,049,779

F9 · price: The price of $2.6912 per share represents a weighted average of purchase prices ranging from $2.585 to $2.845 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 16, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 388,909 $2.69 $1,046,631.90
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 11

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,262,526

F9 · price: The price of $2.6912 per share represents a weighted average of purchase prices ranging from $2.585 to $2.845 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
February 15, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 12,964 $3.01 $39,012.57
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 10

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 973,442

F8 · price: The price of $3.0093 per share represents a weighted average of purchase prices ranging from $2.96 to $3.12 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
February 15, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 32,754 $3.01 $98,566.61
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 9

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 2,459,295

F8 · price: The price of $3.0093 per share represents a weighted average of purchase prices ranging from $2.96 to $3.12 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 15, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,206 $3.01 $39,740.82
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 8

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 991,541

F8 · price: The price of $3.0093 per share represents a weighted average of purchase prices ranging from $2.96 to $3.12 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 15, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 82,626 $3.01 $248,646.42
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 7

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 6,203,935

F8 · price: The price of $3.0093 per share represents a weighted average of purchase prices ranging from $2.96 to $3.12 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 15, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 208,450 $3.01 $627,288.59
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 6

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,651,435

F8 · price: The price of $3.0093 per share represents a weighted average of purchase prices ranging from $2.96 to $3.12 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
February 14, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,594 $3.37 $45,758.76
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 5

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

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

Disclosed balance after: 986,406

F7 · price: The price of $3.3661 per share represents a weighted average of purchase prices ranging from $3.00 to $3.61 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
February 14, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 34,345 $3.37 $115,608.70
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 4

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 3 LP

Disclosed balance after: 2,492,049

F7 · price: The price of $3.3661 per share represents a weighted average of purchase prices ranging from $3.00 to $3.61 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 14, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,847 $3.37 $46,610.39
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 3

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 2 LP

Disclosed balance after: 1,004,747

F7 · price: The price of $3.3661 per share represents a weighted average of purchase prices ranging from $3.00 to $3.61 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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
February 14, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 86,639 $3.37 $291,635.54
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 2

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by Momentus PML SPV 1 LP

Disclosed balance after: 6,286,561

F7 · price: The price of $3.3661 per share represents a weighted average of purchase prices ranging from $3.00 to $3.61 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.

F11 · balance_after: This amendment is being filed to correct a technical error that caused the omission of Momentus PML SPV 1 LP, Momentus PML SPV 2 LP, and Momentus PML SPV 3 LP as reporting persons.

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.

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February 14, 2022 Filed Feb 18, 2022 17:32 UTC Amendment Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 218,575 $3.37 $735,745.31
Disclosure

SEC source: 0001062993-22-004999 · form4a.xml · nonDerivative · entry 1

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,859,885

F7 · price: The price of $3.3661 per share represents a weighted average of purchase prices ranging from $3.00 to $3.61 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.

F10 · balance_after: Amount includes 172,863 shares inadvertently omitted from the prior Form 4 due to a clerical error.

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.

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August 12, 2021 Filed Aug 16, 2021 21:08 UTC Momentus Inc. MNTS · Entity 6834 GrantWarrants (right to buy) · Derivative 1,000,000 Not disclosed Strike: $11.50 Not disclosed
Disclosure

SEC source: 0001209191-21-051731 · doc4.xml · derivative · entry 6

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: Not disclosed

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Class A Common Stock · 1,000,000 shares

Expires not disclosed

F4 · price: Pursuant to the Subscription Agreement, the Reporting Person received a warrant to purchase one share of Class A Common Stock of the Issuer at a price of $11.50 per share (subject to adjustment as described in the warrant agreement) for each share of Class A Common Stock of the Issuer purchased by the Reporting Person.

F4 · derivative.exercise_date: Pursuant to the Subscription Agreement, the Reporting Person received a warrant to purchase one share of Class A Common Stock of the Issuer at a price of $11.50 per share (subject to adjustment as described in the warrant agreement) for each share of Class A Common Stock of the Issuer purchased by the Reporting Person.

F4 · derivative.expiration_date: Pursuant to the Subscription Agreement, the Reporting Person received a warrant to purchase one share of Class A Common Stock of the Issuer at a price of $11.50 per share (subject to adjustment as described in the warrant agreement) for each share of Class A Common Stock of the Issuer purchased by the Reporting Person.

F2 · ownership.direct: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

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August 12, 2021 Filed Aug 16, 2021 21:08 UTC Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 2,526,394 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-21-051731 · doc4.xml · nonDerivative · entry 5

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: Not disclosed

Ownership: Indirect · By Momentus PML SPV 3 LP

Disclosed balance after: 2,526,394

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Aug 16, 2021 21:08 UTC Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 1,018,594 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-21-051731 · doc4.xml · nonDerivative · entry 4

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: Not disclosed

Ownership: Indirect · By Momentus PML SPV 2 LP

Disclosed balance after: 1,018,594

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Aug 16, 2021 21:08 UTC Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 6,373,200 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-21-051731 · doc4.xml · nonDerivative · entry 3

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: Not disclosed

Ownership: Indirect · By Momentus PML SPV 1 LP

Disclosed balance after: 6,373,200

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Aug 16, 2021 21:08 UTC Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 1,000,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-21-051731 · doc4.xml · nonDerivative · entry 2

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: Not disclosed

Ownership: Direct

Disclosed balance after: 15,905,597

F3 · price: Pursuant to a Subscription Agreement dated as of July 16, 2021 (as amended from time to time, the "Subscription Agreement") entered into in connection with the Business Combination Agreement, the Reporting Person agreed to subscribe for and purchase, in a private placement immediately prior to the closing of the Business Combination, an aggregate of 1,000,000 shares of Class A Common Stock of the Issuer for a purchase price of $10.00 per share.

F2 · ownership.direct: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Aug 16, 2021 21:08 UTC Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 14,905,597 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-21-051731 · doc4.xml · nonDerivative · entry 1

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: Not disclosed

Ownership: Direct

Disclosed balance after: 14,905,597

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.direct: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Feb 18, 2022 17:33 UTC Amendment Momentus Inc. MNTS · Entity 6834 GrantWarrants (right to buy) · Derivative 1,000,000 Not disclosed Strike: $11.50 Not disclosed
Disclosure

SEC source: 0001062993-22-005000 · form4a.xml · derivative · entry 6

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Class A Common Stock · 1,000,000 shares

Expires not disclosed

F4 · price: Pursuant to the Subscription Agreement, the Reporting Person received a warrant to purchase one share of Class A Common Stock of the Issuer at a price of $11.50 per share (subject to adjustment as described in the warrant agreement) for each share of Class A Common Stock of the Issuer purchased by the Reporting Person.

F4 · derivative.exercise_date: Pursuant to the Subscription Agreement, the Reporting Person received a warrant to purchase one share of Class A Common Stock of the Issuer at a price of $11.50 per share (subject to adjustment as described in the warrant agreement) for each share of Class A Common Stock of the Issuer purchased by the Reporting Person.

F4 · derivative.expiration_date: Pursuant to the Subscription Agreement, the Reporting Person received a warrant to purchase one share of Class A Common Stock of the Issuer at a price of $11.50 per share (subject to adjustment as described in the warrant agreement) for each share of Class A Common Stock of the Issuer purchased by the Reporting Person.

F2 · ownership.direct: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Feb 18, 2022 17:33 UTC Amendment Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 2,526,394 Not disclosed Not disclosed
Disclosure

SEC source: 0001062993-22-005000 · form4a.xml · nonDerivative · entry 5

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Momentus PML SPV 3 LP

Disclosed balance after: 2,526,394

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Feb 18, 2022 17:33 UTC Amendment Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 1,018,594 Not disclosed Not disclosed
Disclosure

SEC source: 0001062993-22-005000 · form4a.xml · nonDerivative · entry 4

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Momentus PML SPV 2 LP

Disclosed balance after: 1,018,594

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Feb 18, 2022 17:33 UTC Amendment Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 6,373,200 Not disclosed Not disclosed
Disclosure

SEC source: 0001062993-22-005000 · form4a.xml · nonDerivative · entry 3

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Momentus PML SPV 1 LP

Disclosed balance after: 6,373,200

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Feb 18, 2022 17:33 UTC Amendment Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 1,000,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001062993-22-005000 · form4a.xml · nonDerivative · entry 2

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,078,460

F3 · price: Pursuant to a Subscription Agreement dated as of July 16, 2021 (as amended from time to time, the "Subscription Agreement") entered into in connection with the Business Combination Agreement, the Reporting Person agreed to subscribe for and purchase, in a private placement immediately prior to the closing of the Business Combination, an aggregate of 1,000,000 shares of Class A Common Stock of the Issuer for a purchase price of $10.00 per share.

F6 · balance_after: The amount of securities beneficially owned following the reported transaction has been adjusted to correct for a previous clerical error.

F2 · ownership.direct: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

Read SEC document
August 12, 2021 Filed Feb 18, 2022 17:33 UTC Amendment Momentus Inc. MNTS · Entity 6834 GrantClass A Common Stock 15,078,460 Not disclosed Not disclosed
Disclosure

SEC source: 0001062993-22-005000 · form4a.xml · nonDerivative · entry 1

Prime Movers Lab Fund I LP · CIK 0001751631 · 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

Sloss Dakin · CIK 0001875411 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,078,460

F5 · date: This amendment is being filed to correct a clerical error in the number of securities acquired and to correct a technical error that caused the omission of Dakin Sloss as a reporting person.

F1 · price: On August 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of October 7, 2020 (as amended, supplemented or modified from time to time, the "Merger Agreement"), by and among Stable Road Acquisition Corp., a Delaware corporation (the "Issuer"), Momentus Inc., a Delaware corporation ("Legacy Momentus"), and the other parties thereto, the Issuer completed its initial business combination (the "Business Combination"). As a result of the Business Combination, the Issuer changed its name to Momentus Inc. In connection with the Business Combination and in accordance with the Merger Agreement, an aggregate of 65,133,131 shares of Class A Common Stock of Legacy Momentus held by the Reporting Person were converted into 14,905,597 shares of Class A Common Stock of the Issuer. The issuance of the shares was approved by the Issuer's board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended.

F6 · balance_after: The amount of securities beneficially owned following the reported transaction has been adjusted to correct for a previous clerical error.

F2 · ownership.direct: Prime Movers Lab GP I LLC is the general partner of each of the Reporting Persons.

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.