MNTSW · Insider Trading

Momentus Inc. Warrant

Every open-market purchase and sale reported by MNTSW officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
4
code P
Sales
7
code S
Reporting Insiders
11
current holders
MNTSW — Recent Form 4 Transactions (latest 2026-05-26)
FiledInsiderRole TypeSharesValue
2026-05-26 Chris Hadfield Director Buy +2,000 +$14.38K
2026-05-22 Brian Kabot Director Buy +250 +$1.38K
2026-05-21 Jon Layman Chief Legal Officer A +14,270 —
2026-05-21 Jon Layman Chief Legal Officer A +6,457 —
2026-05-21 John C. Rood Chief Executive Officer A +55,350 —
2026-05-21 Robert E Schwarz Chief Technology Officer A +6,457 —
2026-05-21 Lon Ensler Chief Financial Officer A +5,405 —
2026-05-20 Brian Kabot Director MIXED +1,163 +$1.40K
2026-05-20 Brian Kabot Director Buy +1,850 +$10.00K
2026-05-20 Victorino Mercado Director M +913 —
2026-05-20 Chris Hadfield Director M +913 —
2026-05-20 Kimberly A. Reed Director M +913 —
2026-05-20 Mitchel B. Kugler Director A +6,039 deriv. —
2026-05-20 Linda J. Reiners Director M +913 —
2026-05-18 Chris Hadfield Director Buy +1,500 +$7.98K
2026-03-03 Robert E Schwarz Chief Technology Officer A +5,974 deriv. —
2026-03-03 Lon Ensler Chief Financial Officer A +12,092 deriv. —
2026-03-03 Jon Layman Chief Legal Officer A +8,486 deriv. —
2026-03-03 John C. Rood Chief Executive Officer A +22,744 deriv. —
2025-09-10 Lon Ensler CFO A +95,000 deriv. —
2025-08-22 John C. Rood Chief Executive Officer MIXED +211 −$148
2025-07-03 Robert E Schwarz Chief Technology Officer A +44,809 deriv. —
2025-07-03 Victorino Mercado Director A +16,294 —
2025-07-03 Brian Kabot Director A +16,294 —
2025-07-03 Jon Layman Chief Legal Officer A +127,298 deriv. —
2025-07-03 Kimberly A. Reed Director A +16,294 —
2025-07-03 Chris Hadfield Director A +16,294 —
2025-07-03 Linda J. Reiners Director A +16,294 —
2025-07-03 Mitchel B. Kugler Director A +32,588 deriv. —
2025-07-03 John C. Rood Chief Executive Officer A +170,580 deriv. —
2025-03-26 Robert E Schwarz Chief Technology Officer MIXED +139 −$189
2025-03-26 John C. Rood Chief Executive Officer MIXED +592 −$629
2024-11-22 Paul Ney Chief Legal Officer & Corp.Sec MIXED +1,040 −$189
2024-11-05 Brian Kabot Director M +2,622 —
2024-11-05 Chris Hadfield Director M +222 —
2024-11-05 John C. Rood Chief Executive Officer MIXED +3,203 −$782
2024-11-05 Linda J. Reiners Director M +2,622 —
2024-11-05 Victorino Mercado Director M +2,622 —
2024-11-05 Kimberly A. Reed Director M +2,622 —
2024-03-22 Robert E Schwarz Chief Technology Officer MIXED +1,953 −$614
2024-03-22 Paul Ney Chief Legal Officer & Corp.Sec MIXED +1,961 −$374
2024-03-22 John C. Rood Chief Executive Officer MIXED +9,093 −$1.70K
2023-12-05 Brian Kabot Director Sell −400 −$1.04K
2023-11-22 Paul Ney Chief Legal Officer & Corp.Sec MIXED +1,040 −$928
2023-11-03 Brian Kabot Director Sell −400 −$1.40K
2023-10-04 Brian Kabot Director Sell −400 −$868
2023-09-26 Dakin Sloss 10%+ Owner Sell −649,680 −$1.35M
2023-09-14 Prime Movers Lab Fund I LP 10%+ Owner Sell −1,055,898 −$3.79M
2023-09-11 MOMENTUS PML SPV 2 LP 10%+ Owner Sell −236,076 −$1.45M
2023-09-06 Brian Kabot Director Sell −400 −$4.38K
MNTSW — Current Insider Holders
InsiderRole Shares HeldValue
John C. Rood Chief Executive Officer 55,474 $39
Brian Kabot Director 33,458 $23
Mitchel B. Kugler Director 17,857 $12
Jon Layman Chief Legal Officer 6,476 $5
Robert E Schwarz Chief Technology Officer 6,476 $5
Lon Ensler Chief Financial Officer 5,405 $4
Chris Hadfield Director 5,384 $4
Paul Ney Chief Legal Officer & Corp.Sec 5,050 $4
Kimberly A. Reed Director 2,115 $1
Linda J. Reiners Director 2,115 $1
Victorino Mercado Director 2,077 $1
MNTSW Insider Trading FAQ
Who are the insiders at MNTSW?
11 officers, directors and 10%+ beneficial owners currently report holdings in MNTSW via SEC Form 4.
Are MNTSW insiders buying or selling?
Across the 50 most recent Form 4 filings for MNTSW, 4 were open-market purchases (code P) and 7 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is MNTSW insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent MNTSW filing is dated 2026-05-26.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the MNTSW quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.