Momentus (MNTS)Director bought ~$1.4K

~$1.4K

Approx. value · 250 sh @ $5.52

4,708

Holds after · shares reported

Traded

May 20, 2026

Filed

May 22, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Apr 14, 2026Company filing · Form 8-K · Material agreement, Unregistered sharesSigned an important agreement, and sold new shares without registering them (and 1 more item)
2. Apr 17, 2026Company filing · Form 8-K · Agreement endedEnded an important agreement
3. May 5, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
4. May 15, 2026Insider · 2 peopleInsiders: 2 purchases (~$18K)
5. May 19, 2026InsiderDirector purchased ~$1.4K of MNTS shares in the open market
6. May 20, 2026 · this disclosureInsiderDirector purchased ~$1.4K of MNTS shares in the open market

What came next

1. May 21, 2026InsiderDirector purchased ~$14K of MNTS shares in the open market
2. May 26, 2026Company filing · Form 8-K · Material agreement, Unregistered sharesSigned an important agreement, and sold new shares without registering them (and 1 more item)
3. Jun 11, 2026Company filing · Form 8-K · Material agreement, Reg FDSigned an important agreement, and shared information with investors
4. Aug 11, 2026Company filing · Form 8-K · Auditor changeChanged its auditor“Changes in Registrant’s Certifying Accountant. (a) Dismissal of Independent Registered Public Accounting Firm On August 10 2026, the Audit Committee of the Board of Directors (the “Audit Committee”) of Momentus Inc. (the “Company”) approved the dismissal of Frank, Rimerman + Co. LLP (“Frank, Rimerman”) as the Company’s independent registered public accounting firm, effective August 11, 2026.”
5. Aug 21, 2026Company filing · Form 8-K · Agreement endedEnded an important agreement

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Momentus

OQRO holds no insider, Congress, fund or contract record for Momentus dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MNTS page.

Other recent filings by Brian Kabot, Director

• SEC Form 4 at Momentus (MNTS)May 21, 2026
• SEC Form 4 at Momentus (MNTS)May 20, 2026

The full history of Brian Kabot, Director is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Momentus

• SEC Form 4May 26, 2026
• SEC Form 4May 21, 2026
• SEC Form 4May 20, 2026
• SEC Form 4May 18, 2026

Everything OQRO holds on this company is on its MNTS page.