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Prime Movers Lab Fund I LP

Disclosed activity across 3 companies

Tapewire entity
109449
SEC CIK
0001751631

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Heliogen, Inc.HLGN · Entity 7837310% ownerJune 12, 2023June 14, 2023
Momentus Inc.MNTS · Entity 683410% ownerSeptember 22, 2023September 26, 2023
Vaxxinity, Inc.VAXX · Entity 9168810% ownerSeptember 06, 2023September 08, 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.

Heliogen, Inc.

Report date June 12, 2023 · Filed June 14, 2023

Jointly reported with Sloss Dakin, Heliogen PML SPV 1 LP, Prime Movers Lab GP I LLC, Prime Movers Lab GP II LLC

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectHeld by Prime Movers Lab Fund I LP10,477,320 Last balance in matching sequence After 2023-06-13 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2023-06-12 · Sale · Disposed 275,000 · Balance 13,402,320

F4: The price of $0.2035 per share represents a weighted average of purchase prices ranging from $0.1985 to $0.2231 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.

F3: Dakin Sloss is the manager of PML GP and PML GP II and as a result may be deemed to have or share beneficial ownership the securities held by PML and Heliogen PML. 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 2 · 2023-06-13 · Sale · Disposed 2,925,000 · Balance 10,477,320

F5: The price of $0.1997 per share represents a weighted average of purchase prices ranging from $0.1910 to $0.2101 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.

F3: Dakin Sloss is the manager of PML GP and PML GP II and as a result may be deemed to have or share beneficial ownership the securities held by PML and Heliogen PML. 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.

Common StockSEC Table I · non-derivativeIndirectHeld by Heliogen PML SPV 1 LP6,668,457 Reported balance Holding disclosure · report date 2023-06-12 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 6,668,457

F2: Held by Heliogen PML SPV 1 LP ("Heliogen PML"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of Heliogen PML.

F3: Dakin Sloss is the manager of PML GP and PML GP II and as a result may be deemed to have or share beneficial ownership the securities held by PML and Heliogen PML. 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 Heliogen PML SPV 1 LP ("Heliogen PML"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of Heliogen PML.

F3: Dakin Sloss is the manager of PML GP and PML GP II and as a result may be deemed to have or share beneficial ownership the securities held by PML and Heliogen PML. 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.

F4: The price of $0.2035 per share represents a weighted average of purchase prices ranging from $0.1985 to $0.2231 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: The price of $0.1997 per share represents a weighted average of purchase prices ranging from $0.1910 to $0.2101 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.

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.

Vaxxinity, Inc.

Report date September 06, 2023 · Filed September 08, 2023

Jointly reported with Sloss Dakin

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeIndirectHeld by COVAXX PML SPV 1 LP2,058,990 Last balance in matching sequence After 2023-09-07 transaction · row 6 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2023-09-06 · Sale · Disposed 1,251 · Balance 2,063,776

F1: The price of $1.8823 per share represents a weighted average of purchase prices ranging from $1.85 to $1.94 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 COVAXX PML SPV 1 LP ("PML SPV 1"). Prime Movers Lab GP I LLC ("PML GP I") is the general partner of Prime Movers Lab Fund I LP ("PML") and PML SPV 1.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 · 2023-09-07 · Sale · Disposed 4,786 · Balance 2,058,990

F8: The price of $1.7872 per share represents a weighted average of purchase prices ranging from $1.75 to $1.86 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 COVAXX PML SPV 1 LP ("PML SPV 1"). Prime Movers Lab GP I LLC ("PML GP I") is the general partner of Prime Movers Lab Fund I LP ("PML") and PML SPV 1.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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-derivativeDirect8,738,752 Last balance in matching sequence After 2023-09-07 transaction · row 7 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 2 · 2023-09-06 · Sale · Disposed 5,308 · Balance 8,759,064

F1: The price of $1.8823 per share represents a weighted average of purchase prices ranging from $1.85 to $1.94 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 PML. PML GP I is the general partner of PML.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 · 2023-09-07 · Sale · Disposed 20,312 · Balance 8,738,752

F8: The price of $1.7872 per share represents a weighted average of purchase prices ranging from $1.75 to $1.86 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 PML. PML GP I is the general partner of PML.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 COVAXX PML SPV 2 LP831,658 Last balance in matching sequence After 2023-09-08 transaction · row 13 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 3 · 2023-09-06 · Sale · Disposed 507 · Balance 835,992

F1: The price of $1.8823 per share represents a weighted average of purchase prices ranging from $1.85 to $1.94 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 COVAXX PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 8 · 2023-09-07 · Sale · Disposed 1,939 · Balance 834,053

F8: The price of $1.7872 per share represents a weighted average of purchase prices ranging from $1.75 to $1.86 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 COVAXX PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 · 2023-09-08 · Sale · Disposed 2,395 · Balance 831,658

F9: The price of $1.6700 per share represents a weighted average of purchase prices ranging from $1.60 to $1.82 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 COVAXX PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 COVAXX PML SPV 3 LP1,472,208 Reported balance After 2023-09-06 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 4 · 2023-09-06 · Sale · Disposed 892 · Balance 1,472,208

F1: The price of $1.8823 per share represents a weighted average of purchase prices ranging from $1.85 to $1.94 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 COVAXX PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 1 LP3,612,849 Reported balance After 2023-09-06 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 5 · 2023-09-06 · Sale · Disposed 2,189 · Balance 3,612,849

F1: The price of $1.8823 per share represents a weighted average of purchase prices ranging from $1.85 to $1.94 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.

F6: Held by Prime Movers Growth Fund 1 LP ("PMG"). Prime Movers Growth GP I LLC ("PMG GP") is the general partner of PMG.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 COVAXX PML SPV 3 LP1,464,578 Last balance in matching sequence After 2023-09-08 transaction · row 14 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 9 · 2023-09-07 · Sale · Disposed 3,413 · Balance 1,468,795

F8: The price of $1.7872 per share represents a weighted average of purchase prices ranging from $1.75 to $1.86 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 COVAXX PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 · 2023-09-08 · Sale · Disposed 4,217 · Balance 1,464,578

F9: The price of $1.6700 per share represents a weighted average of purchase prices ranging from $1.60 to $1.82 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 COVAXX PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 1 LP3,594,122 Last balance in matching sequence After 2023-09-08 transaction · row 15 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 10 · 2023-09-07 · Sale · Disposed 8,378 · Balance 3,604,471

F8: The price of $1.7872 per share represents a weighted average of purchase prices ranging from $1.75 to $1.86 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.

F6: Held by Prime Movers Growth Fund 1 LP ("PMG"). Prime Movers Growth GP I LLC ("PMG GP") is the general partner of PMG.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 · 2023-09-08 · Sale · Disposed 10,349 · Balance 3,594,122

F9: The price of $1.6700 per share represents a weighted average of purchase prices ranging from $1.60 to $1.82 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.

F6: Held by Prime Movers Growth Fund 1 LP ("PMG"). Prime Movers Growth GP I LLC ("PMG GP") is the general partner of PMG.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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 COVAXX PML SPV 1 LP2,053,079 Reported balance After 2023-09-08 transaction · row 11 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 11 · 2023-09-08 · Sale · Disposed 5,911 · Balance 2,053,079

F9: The price of $1.6700 per share represents a weighted average of purchase prices ranging from $1.60 to $1.82 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 COVAXX PML SPV 1 LP ("PML SPV 1"). Prime Movers Lab GP I LLC ("PML GP I") is the general partner of Prime Movers Lab Fund I LP ("PML") and PML SPV 1.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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-derivativeDirect8,713,663 Reported balance After 2023-09-08 transaction · row 12 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 12 · 2023-09-08 · Sale · Disposed 25,089 · Balance 8,713,663

F9: The price of $1.6700 per share represents a weighted average of purchase prices ranging from $1.60 to $1.82 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 PML. PML GP I is the general partner of PML.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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: The price of $1.8823 per share represents a weighted average of purchase prices ranging from $1.85 to $1.94 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 COVAXX PML SPV 1 LP ("PML SPV 1"). Prime Movers Lab GP I LLC ("PML GP I") is the general partner of Prime Movers Lab Fund I LP ("PML") and PML SPV 1.

F3: Held by PML. PML GP I is the general partner of PML.

F4: Held by COVAXX PML SPV 2 LP ("PML SPV 2"). Prime Movers Lab GP II LLC ("PML GP II") is the general partner of PML SPV 2.

F5: Held by COVAXX PML SPV 3 LP ("PML SPV 3"). PML GP II is the general partner of PML SPV 3.

F6: Held by Prime Movers Growth Fund 1 LP ("PMG"). Prime Movers Growth GP I LLC ("PMG GP") is the general partner of PMG.

F7: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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.

F8: The price of $1.7872 per share represents a weighted average of purchase prices ranging from $1.75 to $1.86 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 $1.6700 per share represents a weighted average of purchase prices ranging from $1.60 to $1.82 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
November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionClass A common stock 9,738,192 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · nonDerivative · entry 5

Prime Movers Lab Fund I LP · CIK 0001751631 · 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: 9,738,192

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 · price: Shares of preferred stock automatically converted into shares of Class A common stock upon closing of the Issuer's initial public offering based on a conversion rate of approximately 0.643 shares of Class A common stock for each share of preferred stock.

F6 · ownership.direct: Held by PML. PML GP I is the general partner of PML.

F7 · ownership.direct: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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
November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionClass A common stock 3,615,038 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · nonDerivative · entry 4

Prime Movers Lab Fund I LP · CIK 0001751631 · 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 1 LP

Disclosed balance after: 3,615,038

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 · price: Shares of preferred stock automatically converted into shares of Class A common stock upon closing of the Issuer's initial public offering based on a conversion rate of approximately 0.643 shares of Class A common stock for each share of preferred stock.

F5 · ownership.nature: Held by Prime Movers Growth Fund 1 LP ("PMG"). Prime Movers Growth GP I LLC ("PMG GP") is the general partner of PMG.

F7 · ownership.nature: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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
November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionClass A common stock 1,517,754 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · nonDerivative · entry 3

Prime Movers Lab Fund I LP · CIK 0001751631 · 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 COVAXX PML SPV 3 LP

Disclosed balance after: 1,517,754

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 · price: Shares of preferred stock automatically converted into shares of Class A common stock upon closing of the Issuer's initial public offering based on a conversion rate of approximately 0.643 shares of Class A common stock for each share of preferred stock.

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

F7 · ownership.nature: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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
November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionClass A common stock 861,857 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · nonDerivative · entry 2

Prime Movers Lab Fund I LP · CIK 0001751631 · 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 COVAXX PML SPV 2 LP

Disclosed balance after: 861,857

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 · price: Shares of preferred stock automatically converted into shares of Class A common stock upon closing of the Issuer's initial public offering based on a conversion rate of approximately 0.643 shares of Class A common stock for each share of preferred stock.

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

F7 · ownership.nature: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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
November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionClass A common stock 2,294,473 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · nonDerivative · entry 1

Prime Movers Lab Fund I LP · CIK 0001751631 · 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 COVAXX PML SPV 1 LP

Disclosed balance after: 2,294,473

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 · price: Shares of preferred stock automatically converted into shares of Class A common stock upon closing of the Issuer's initial public offering based on a conversion rate of approximately 0.643 shares of Class A common stock for each share of preferred stock.

F2 · ownership.nature: Held by COVAXX PML SPV 1 LP ("PML SPV 1"). Prime Movers Lab GP I LLC ("PML GP I") is the general partner of Prime Movers Lab Fund I LP ("PML") and PML SPV 1.

F7 · ownership.nature: Dakin Sloss is the manager of PML GP I, PML GP II and PMG GP, and may be deemed to beneficially own the securities held by PML, PMG, PML SPV 1, PML SPV 2 and PML SPV 3. 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
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.

Read SEC document
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.

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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.

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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.

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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.

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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.

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