Insider Transactions Reported by 21 Insiders of Momentus Inc.

Symbol: MNTS, MNTSW on Nasdaq
Location: San Jose, CA

Key facts

MNTS - Momentus Inc. has 21 insiders with reported activity on this page.
Net insider value flow over the last year: +$17,979.
Recent transaction rows are available for direct filing-level review.

Change

Buy value: $17,979; sell value: $0.
Net share flow: +3,350.

Research use

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to buying over the last 12 months. Net value: +$17,979.

Buys

$17,979

Shares: 3,350

Insiders: 2

Sells

Shares: 0

Insiders: 0

Net

+$17,979

Shares: +3,350

Insiders: 2

Window (months)	Buy shares	Buy $	Sell $	Net $
0-3	3,350	$17,979	$0	+$17,979
3-6	0	$0	$0	$0
6-9	0	$0	$0	$0
9-12	0	$0	$0	$0

Momentus Inc. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
SRC-NI Holdings LLC	10%+ Owner	$11,390,675			Mixed	12 Aug 2021
Juan Manuel Quiroga	10%+ Owner	$11,390,675			Mixed	12 Aug 2021
Edward K. Freedman	10%+ Owner	$3,838,825			Mixed	12 Aug 2021
Eric R. Williams	Chief Financial Officer	$3,325,879			Mixed	20 Apr 2023
Fred G. Kennedy III	President	$1,239,453			Mixed	20 Jan 2022
Jikun Kim	Chief Financial Officer	$799,360			Mixed	20 Dec 2022
Mitchel B. Kugler	Director	$420,000			Mixed	30 Jun 2025
Prime Movers Lab Fund I LP	10%+ Owner	$275,149			Mixed	22 Sep 2023
Dawn A. Harms	Chief Revenue Officer	$176,192			Mixed	31 Dec 2022
Brian Kabot	Director	$58,345	+$9,999	+21%	Mixed	15 May 2026
Kimberly A. Reed	Director	$30,231			Mixed	30 Jun 2025
Linda J. Reiners	Director	$30,231			Mixed	30 Jun 2025
Victorino Mercado	Director	$29,295			Mixed	30 Jun 2025
Chris Hadfield	Director	$15,551	+$7,980	+105%	Mixed	15 May 2026
Paul Ney	Chief Legal Officer & Corp.Sec	$3,631			Mixed	20 Nov 2024
John C. Rood	Chief Executive Officer, Director	$3,170			Mixed	27 Feb 2026
Robert E. Schwarz	Chief Technology Officer	$942			Mixed	27 Feb 2026
Dennis R. Mahoney	Interim CFO				Mixed	07 Jan 2023
Jon Layman	Chief Legal Officer				Mixed	27 Feb 2026
SBI Securities Co., Ltd.	Other*				Mixed	30 Aug 2024
Lon Ensler	Chief Financial Officer				Mixed	27 Feb 2026

Top shareholders of Momentus Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Juan Manuel Quiroga	3/4/5	10%+ Owner	— class O/S missing	4,381,029	$11,390,675	—	12 Aug 2021	3/4/5
SRC-NI Holdings LLC	3/4/5	10%+ Owner	— class O/S missing	4,381,029	$11,390,675	—	12 Aug 2021	3/4/5
GHIOCELA PROD COM SRL	13D/G	—	9%	1,500,396	$6,519,521	$0	02 Oct 2024	13D/G
Edward K. Freedman	3/4/5	10%+ Owner	— class O/S missing	1,476,471	$3,838,825	—	12 Aug 2021	3/4/5
Eric R. Williams	3/4/5	Chief Financial Officer	— class O/S missing	950,251	$3,325,879	—	20 Apr 2023	3/4/5
Diametric Capital, LP	13F	Company	35%	1,483,178	$1,379,503	—	31 Mar 2026	13F
Fred G. Kennedy III	3/4/5	President	— mixed-class rows	371,002 mixed-class rows	$1,239,453	—	20 Jan 2022	3/4/5
Jikun Kim	3/4/5	Chief Financial Officer	— mixed-class rows	251,948 mixed-class rows	$799,360	—	20 Dec 2022	3/4/5
ARK Investment Management LLC	13F	Company	15%	628,310	$584,391	—	31 Mar 2026	13F
Penserra Capital Management LLC	13F	Company	— class O/S missing	130,405	$479,000	—	31 Mar 2026	13F
Mitchel B. Kugler	3/4/5	Director	— mixed-class rows	32,588 mixed-class rows	$420,000	—	30 Jun 2025	3/4/5
CITADEL ADVISORS LLC	13D/G 13F	Kenneth Griffin · Company	10%	635,792	$330,612	$0	15 Apr 2026	13D/G 13F
Prime Movers Lab Fund I LP	3/4/5	10%+ Owner	— class O/S missing	105,827	$275,149	—	22 Sep 2023	3/4/5
ARMISTICE CAPITAL, LLC	13D/G	—	5%	209,340	$272,142	$0	30 Jun 2025	13D/G
PRELUDE CAPITAL MANAGEMENT, LLC	13F	Company	5.4%	225,738	$209,959	—	31 Mar 2026	13F
Dawn A. Harms	3/4/5	Chief Revenue Officer	— class O/S missing	67,766	$176,192	—	31 Dec 2022	3/4/5
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	— mixed-class rows	102,330 mixed-class rows	$155,041	—	31 Mar 2026	13F
UBS Group AG	13F	Company	— mixed-class rows	145,050 mixed-class rows	$150,960	—	31 Mar 2026	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	3.5%	146,412	$136,178	—	31 Mar 2026	13F
BANK OF AMERICA CORP /DE/	13F	Company	3.1%	130,401	$121,273	—	31 Mar 2026	13F
Virtu Financial LLC	13F	Company	— mixed-class rows	65,278 mixed-class rows	$121,000	—	31 Mar 2026	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	3.1%	128,192	$119,231	—	31 Mar 2026	13F
JPMORGAN CHASE & CO	13F	Company	3%	125,948	$113,353	—	31 Mar 2026	13F
GOLDMAN SACHS GROUP INC	13F	Company	2.4%	102,093	$94,957	—	31 Mar 2026	13F
XTX Topco Ltd	13F	Company	2.4%	100,362	$93,347	—	31 Mar 2026	13F
MORGAN STANLEY	13F	Company	2.3%	98,333	$91,459	—	31 Mar 2026	13F
Brian Kabot	3/4/5	Director	— mixed-class rows	48,339 mixed-class rows	$58,345	+$9,999	15 May 2026	3/4/5
Invesco Ltd.	13F	Company	1.5%	61,654	$57,344	—	31 Mar 2026	13F
SBI Securities Co., Ltd.	13D/G 13F	Company	0.04%	7,425	$32,263	$0	30 Sep 2024	13D/G 13F
Kimberly A. Reed	3/4/5	Director	— mixed-class rows	37,735 mixed-class rows	$30,231	—	30 Jun 2025	3/4/5
Linda J. Reiners	3/4/5	Director	— mixed-class rows	37,735 mixed-class rows	$30,231	—	30 Jun 2025	3/4/5
Victorino Mercado	3/4/5	Director	— mixed-class rows	37,071 mixed-class rows	$29,295	—	30 Jun 2025	3/4/5
TWO SIGMA SECURITIES, LLC	13F	Company	0.48%	20,044	$18,643	—	31 Mar 2026	13F
Prosperity Consulting Group, LLC	13F	Company	0.42%	17,647	$16,413	—	31 Mar 2026	13F
Chris Hadfield	3/4/5	Director	— mixed-class rows	3,384 mixed-class rows	$15,551	+$7,980	15 May 2026	3/4/5
HARBOUR INVESTMENTS, INC.	13F	Company	0.38%	16,000	$14,882	—	31 Mar 2026	13F
LMR Partners LLP	13F	Company	— class O/S missing	660,538	$13,475	—	31 Mar 2026	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.28%	11,779	$10,956	—	31 Mar 2026	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	— mixed-class rows	59,442 mixed-class rows	$10,595	—	31 Mar 2026	13F
Neuberger Berman Group LLC	13F	Company	0.26%	10,988	$10,220	—	31 Mar 2026	13F
AXON CAPITAL LP	13F	Company	— class O/S missing	500,000	$10,200	—	31 Mar 2026	13F
VANGUARD FIDUCIARY TRUST CO	13F	Company	— class O/S missing	2,753	$10,131	—	31 Mar 2026	13F
Tower Research Capital LLC (TRC)	13F	Company	— mixed-class rows	4,772 mixed-class rows	$9,650	—	31 Mar 2026	13F
SkyView Investment Advisors, LLC	13F	Company	0.24%	10,000	$9,000	—	31 Mar 2026	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.22%	9,384	$8,728	—	31 Mar 2026	13F
VANGUARD CAPITAL MANAGEMENT LLC	13F	Company	— class O/S missing	2,229	$8,203	—	31 Mar 2026	13F
Elequin Capital, LP	13F	Company	— class O/S missing	1,461	$5,376	—	31 Mar 2026	13F
TORONTO DOMINION BANK	13F	Company	— class O/S missing	198,800	$3,976	—	31 Mar 2026	13F
Paul Ney	3/4/5	Chief Legal Officer & Corp.Sec	— mixed-class rows	6,425 mixed-class rows	$3,631	—	20 Nov 2024	3/4/5
John C. Rood	3/4/5	Chief Executive Officer, Director	— mixed-class rows	24,956 mixed-class rows	$3,170	—	27 Feb 2026	3/4/5

Recent Insider Transactions by Companies or Individuals for Momentus Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
Brian Kabot	MNTS	Class A Common Stock	Purchase	128%	$9,999	$5.40	1,850	3,295	15 May 2026	Direct
Chris Hadfield	MNTS	Class A Common Stock	Purchase		$7,980	$5.32	1,500	1,500	15 May 2026	Hadfield Inc.
Robert E. Schwarz	MNTS	Restricted Stock Units	Award				5,974	5,974	27 Feb 2026	Direct
Jon Layman	MNTS	Restricted Stock Units	Award				8,486	8,486	27 Feb 2026	Direct
Lon Ensler	MNTS	Restricted Stock Units	Award				12,092	8,486	27 Feb 2026	Direct
John C. Rood	MNTS	Restricted Stock Units	Award				22,744	22,744	27 Feb 2026	Direct
John C. Rood	MNTS	Class A Common Stock	Tax liability	-4.98%			-116	2,212	20 Aug 2025	Direct
John C. Rood	MNTS	Class A Common Stock	Options Exercise	16.3%			327	2,328	20 Aug 2025	Direct
John C. Rood	MNTS	Restricted Stock Units	Options Exercise	-100%			-327	0	20 Aug 2025	Direct
Lon Ensler	MNTS	Restricted Stock Units	Award				95,000	95,000	01 Aug 2025	Direct
Chris Hadfield	MNTS	Class A Common Stock	Award	1592.8%			16,294	17,317	30 Jun 2025	Direct
Chris Hadfield	MNTS	Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Mitchel B. Kugler	MNTS	Deferred Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Mitchel B. Kugler	MNTS	Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Victorino Mercado	MNTS	Class A Common Stock	Award	363.5%			16,294	20,777	30 Jun 2025	Direct
Victorino Mercado	MNTS	Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Kimberly A. Reed	MNTS	Class A Common Stock	Award	316.6%			16,294	21,441	30 Jun 2025	Direct
Kimberly A. Reed	MNTS	Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Linda J. Reiners	MNTS	Class A Common Stock	Award	316.6%			16,294	21,441	30 Jun 2025	Direct
Linda J. Reiners	MNTS	Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Brian Kabot	MNTS	Class A Common Stock	Award	254.4%			16,294	22,698	30 Jun 2025	Direct
Brian Kabot	MNTS	Restricted Stock Units	Award				16,294	16,294	30 Jun 2025	Direct
Robert E. Schwarz	MNTS	Restricted Stock Units	Award				44,809	44,809	30 Jun 2025	Direct
John C. Rood	MNTS	Restricted Stock Units	Award				170,580	170,580	30 Jun 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.