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person · Reporting owner

Sloss Dakin

Disclosed activity across 4 companies

Tapewire entity
109450
SEC CIK
0001875411

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
AxonPrime Infrastructure Acquisition CorpAPMIU · Entity 13614110% ownerAugust 17, 2021August 19, 2021
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.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeIndirectSee Footnote1,500,000 Reported balance After 2021-08-17 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2021-08-17 · Purchase · Acquired 1,500,000 · Balance 1,500,000

F1: Represents 1,500,000 shares of Class A Common Stock acquired in connection with the purchase of 1,500,000 units of the issuer (each consisting of one share of Class A Common Stock and one-third of one redeemable warrant) indirectly through Axon Partners, LP, which is the record holder of such shares. Axon Partners, LP is controlled by Dinakar Singh. Axon Partners, LP, together with Axon Capital LP, its investment manager, which is also controlled by Mr. Singh, has separately filed a Form 3 reporting such acquisition. The securities reported in this Form 4 do not include 500,000 shares of Class A common stock issuable upon the exercise of the warrants included as part of such units. Mr. Singh disclaims any beneficial ownership of such securities, except to the extent of his pecuniary interest therein, if any.

Class B Common StockSEC Table II · derivative / convertible securityDirect3,587,500 Reported balance After 2021-08-17 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2021-08-17 · Sale · Disposed 650,000 · Balance 3,587,500

F2: As described in the issuer's final prospectus filed under Rule 424(b)(4) (File No. 333-257777) (the "Prospectus") under the heading "Description of Securities--Founder Shares," the shares of Class B Common Stock will automatically convert into shares of Class A Common Stock at the time of the initial business combination of the issuer on a one-for-one basis, subject to certain adjustments, and have no expiration date.

F3: The shares of Class B Common Stock were sold by AxonPrime Infrastructure Sponsor LLC (the "Sponsor") to certain institutional investors and qualified institutional buyers, as described in the Prospectus under the heading "Summary - The Offering - Expressions of Interest."

F4: Includes up to 562,500 shares of Class B Common Stock which are subject to forfeiture depending on the extent to which the underwriters' over-allotment option is exercised in connection with the issuer's initial public offering, as described in the Prospectus.

F5: The Sponsor is the record holder of the securities. The Sponsor is a direct subsidiary of AxonPrime Infrastructure Sponsor JV LLC. 50% of the equity interests in AxonPrime Infrastructure Sponsor JV LLC are directly owned by Prime Infrastructure Sponsor LLC and 50% of such interests are directly owned by Axon Infrastructure Sponsor LLC. Prime Infrastructure Sponsor LLC is controlled by Dakin Sloss and Axon Infrastructure Sponsor LLC is controlled by Mr. Singh. As such, each of Messrs. Singh and Sloss may be deemed to share beneficial ownership of the securities held directly by the Sponsor. Each of Messrs. Singh and Sloss disclaim any beneficial ownership of such securities.

Filing footnotes · ownership attribution and instrument terms

F1: Represents 1,500,000 shares of Class A Common Stock acquired in connection with the purchase of 1,500,000 units of the issuer (each consisting of one share of Class A Common Stock and one-third of one redeemable warrant) indirectly through Axon Partners, LP, which is the record holder of such shares. Axon Partners, LP is controlled by Dinakar Singh. Axon Partners, LP, together with Axon Capital LP, its investment manager, which is also controlled by Mr. Singh, has separately filed a Form 3 reporting such acquisition. The securities reported in this Form 4 do not include 500,000 shares of Class A common stock issuable upon the exercise of the warrants included as part of such units. Mr. Singh disclaims any beneficial ownership of such securities, except to the extent of his pecuniary interest therein, if any.

F2: As described in the issuer's final prospectus filed under Rule 424(b)(4) (File No. 333-257777) (the "Prospectus") under the heading "Description of Securities--Founder Shares," the shares of Class B Common Stock will automatically convert into shares of Class A Common Stock at the time of the initial business combination of the issuer on a one-for-one basis, subject to certain adjustments, and have no expiration date.

F3: The shares of Class B Common Stock were sold by AxonPrime Infrastructure Sponsor LLC (the "Sponsor") to certain institutional investors and qualified institutional buyers, as described in the Prospectus under the heading "Summary - The Offering - Expressions of Interest."

F4: Includes up to 562,500 shares of Class B Common Stock which are subject to forfeiture depending on the extent to which the underwriters' over-allotment option is exercised in connection with the issuer's initial public offering, as described in the Prospectus.

F5: The Sponsor is the record holder of the securities. The Sponsor is a direct subsidiary of AxonPrime Infrastructure Sponsor JV LLC. 50% of the equity interests in AxonPrime Infrastructure Sponsor JV LLC are directly owned by Prime Infrastructure Sponsor LLC and 50% of such interests are directly owned by Axon Infrastructure Sponsor LLC. Prime Infrastructure Sponsor LLC is controlled by Dakin Sloss and Axon Infrastructure Sponsor LLC is controlled by Mr. Singh. As such, each of Messrs. Singh and Sloss may be deemed to share beneficial ownership of the securities held directly by the Sponsor. Each of Messrs. Singh and Sloss disclaim any beneficial ownership of such securities.

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 Prime Movers Lab Fund I LP

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
June 13, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 14,427 $2.43 $34,998.46
Disclosure

SEC source: 0001062993-22-014846 · form4.xml · nonDerivative · entry 7

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: 1,498,904

F8 · price: The price of $2.4259 per share represents a weighted average of purchase prices ranging from $2.27 to $2.77 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 COVAXX 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 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
June 13, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 8,193 $2.43 $19,875.40
Disclosure

SEC source: 0001062993-22-014846 · form4.xml · nonDerivative · entry 6

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: 851,152

F8 · price: The price of $2.4259 per share represents a weighted average of purchase prices ranging from $2.27 to $2.77 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 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.

F6 · 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
June 13, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 21,811 $2.43 $52,911.30
Disclosure

SEC source: 0001062993-22-014846 · form4.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: Indirect · Held by COVAXX PML SPV 1 LP

Disclosed balance after: 2,265,975

F8 · price: The price of $2.4259 per share represents a weighted average of purchase prices ranging from $2.27 to $2.77 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.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.

F6 · 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
June 10, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 28,378 $2.80 $79,404.48
Disclosure

SEC source: 0001062993-22-014846 · form4.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: Direct

Disclosed balance after: 9,709,814

F7 · price: The price of $2.7981 per share represents a weighted average of purchase prices ranging from $2.40 to $3.15 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.direct: Held by PML. PML GP I is the general partner of PML.

F6 · 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
June 10, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 4,423 $2.80 $12,376.00
Disclosure

SEC source: 0001062993-22-014846 · form4.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: 1,513,331

F7 · price: The price of $2.7981 per share represents a weighted average of purchase prices ranging from $2.40 to $3.15 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 COVAXX 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 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
June 10, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 2,512 $2.80 $7,028.83
Disclosure

SEC source: 0001062993-22-014846 · form4.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: 859,345

F7 · price: The price of $2.7981 per share represents a weighted average of purchase prices ranging from $2.40 to $3.15 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 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.

F6 · 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
June 10, 2022 Filed Jun 14, 2022 19:08 UTC Vaxxinity, Inc. VAXX · Entity 91688 SaleClass A Common Stock 6,687 $2.80 $18,710.89
Disclosure

SEC source: 0001062993-22-014846 · form4.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: 2,287,786

F7 · price: The price of $2.7981 per share represents a weighted average of purchase prices ranging from $2.40 to $3.15 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.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.

F6 · 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
June 09, 2022 Filed Jun 10, 2022 17:52 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 5,345 $3.10 $16,594.62
Disclosure

SEC source: 0001062993-22-014678 · form4.xml · nonDerivative · entry 8

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: 2,383,123

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.

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 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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 24,188 $2.69 $65,094.75
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 15

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

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 61,109 $2.69 $164,456.54
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 14

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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 24,638 $2.69 $66,305.79
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 13

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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 154,156 $2.69 $414,864.63
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 12

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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 388,909 $2.69 $1,046,631.90
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 11

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

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 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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 12,964 $3.01 $39,012.57
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 10

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

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 32,754 $3.01 $98,566.61
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 9

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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,206 $3.01 $39,740.82
Disclosure

SEC source: 0001062993-22-004666 · form4.xml · nonDerivative · entry 8

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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 82,626 $3.01 $248,646.42
Disclosure

SEC source: 0001062993-22-004666 · 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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 208,450 $3.01 $627,288.59
Disclosure

SEC source: 0001062993-22-004666 · 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

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 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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,594 $3.37 $45,758.76
Disclosure

SEC source: 0001062993-22-004666 · 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

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 34,345 $3.37 $115,608.70
Disclosure

SEC source: 0001062993-22-004666 · 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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 13,847 $3.37 $46,610.39
Disclosure

SEC source: 0001062993-22-004666 · 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

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.

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 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 86,639 $3.37 $291,635.54
Disclosure

SEC source: 0001062993-22-004666 · 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

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.

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 14, 2022 Filed Feb 16, 2022 21:54 UTC Momentus Inc. MNTS · Entity 6834 SaleClass A Common Stock 218,575 $3.37 $735,745.31
Disclosure

SEC source: 0001062993-22-004666 · 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

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.

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.

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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.

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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.

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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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November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionSeries A preferred stock · Derivative 15,152,627 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · derivative · entry 10

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: 0

Underlying: Class A common stock · 9,738,192 shares

Expires not disclosed

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

F1 · derivative.exercise_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.

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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying_shares: 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.

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November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionSeries B preferred stock · Derivative 5,625,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · derivative · entry 9

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: 0

Underlying: Class A common stock · 3,615,038 shares

Expires not disclosed

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

F1 · derivative.exercise_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.

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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying_shares: 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.

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November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionSeries A preferred stock · Derivative 2,361,626 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · derivative · entry 8

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: 0

Underlying: Class A common stock · 1,517,754 shares

Expires not disclosed

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

F1 · derivative.exercise_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.

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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying_shares: 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.

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November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionSeries A preferred stock · Derivative 1,341,050 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · derivative · entry 7

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: 0

Underlying: Class A common stock · 861,857 shares

Expires not disclosed

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

F1 · derivative.exercise_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.

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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying_shares: 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.

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November 15, 2021 Filed Nov 15, 2021 16:24 UTC Vaxxinity, Inc. VAXX · Entity 91688 ConversionSeries A preferred stock · Derivative 3,570,201 Not disclosed Not disclosed
Disclosure

SEC source: 0001123292-21-001446 · edgar.xml · derivative · entry 6

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: 0

Underlying: Class A common stock · 2,294,473 shares

Expires not disclosed

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

F1 · derivative.exercise_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.

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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying_shares: 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.

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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.