Track every registration update on the InsiderAlpha IPO tracker.
Updated Jul 16, 2026 · Last SEC filing 2026-05-26
Momentus Inc. (MNTS) has filed 14 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-26. 6 Form 8-K material event filings were reported by MNTS in the last 90 days. InsiderAlpha tracks every MNTS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001781162 |
|---|
| Form 4 filings (90d) | 14 |
|---|---|
| Form 8-K filings (90d) | 6 |
| Latest Form 4 filing | 2026-05-26 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Hadfield Chris | Director | P — Open-market purchase | 2.0K | $7.19 | $14K | SEC | |
| Kabot Brian | Director | P — Open-market purchase | 250 | $5.51 | $1K | SEC | |
| Rood John C. | Chief Executive Officer | A — Grant or award | 55.4K | $0.00 | — | SEC | |
| Layman Jon | Chief Legal Officer | A — Grant or award | 6.5K | $0.00 | — | SEC | |
| Ensler Lon | Chief Financial Officer | A — Grant or award | 5.4K | $0.00 | — | SEC | |
| Kabot Brian | Director | P — Open-market purchase | 250 | $5.62 | $1K | SEC | |
| SCHWARZ ROBERT E | Chief Technology Officer | A — Grant or award | 6.5K | $0.00 | — | SEC | |
| Reiners Linda J. | Director | M — Option exercise | 913 | $0.00 | — | SEC | |
| Mercado Victorino | Director | M — Option exercise | 913 | $0.00 | — | SEC | |
| Reed Kimberly A. | Director | M — Option exercise | 913 | $0.00 | — | SEC | |
| Kabot Brian | Director | M — Option exercise | 913 | $0.00 | — | SEC | |
| Hadfield Chris | Director | M — Option exercise | 913 | $0.00 | — | SEC | |
| Kabot Brian | Director | P — Open-market purchase | 1.9K | $5.40 | $10K | SEC | |
| Hadfield Chris | Director | P — Open-market purchase | 1.5K | $5.32 | $8K | SEC | |
| Rood John C. | Chief Executive Officer | F — Tax withholding / forfeiture | 116 | $1.28 | $148 | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Momentus Inc. (MNTS). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Kabot Brian | 5 | $13K |
| Hadfield Chris | 4 | $22K |
| SCHWARZ ROBERT E | 2 | — |
| Reiners Linda J. | 2 | — |
| Reed Kimberly A. | 2 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MNTS insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
Open the live MNTS dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.