Insiders / Walsh Matthew M
Walsh Matthew M
CIK 1269428personinsider
Companies
2
First seen
Mar 3, 2026
Last activity
May 15, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Certara, Inc. · CERT | 213,316 | — |
| Organon & Co. · OGN | 212,746 | — |
All securities held
4 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Certara, Inc. | Common Stock | 213,316 |
| Certara, Inc. | Restricted Stock UnitsDerivative | 33,222 |
| Organon & Co. | Common Stock | 212,746 |
| Organon & Co. | Restricted Stock UnitsDerivative | 43,094 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 27, 2026 | Other | OGN Organon & Co. Common Stock | $106.7K | -15K -7.96% | 172,196 0.07% of shares | low |
| Mar 31, 2026 | Other | OGN Organon & Co. Common Stock | $42.1K | -7K -3.35% | 212,746 0.08% of shares | low |
| Mar 29, 2026 | Other | OGN Organon & Co. Common Stock | $30.1K | -5K -2.64% | 190,660 0.07% of shares | low |
| Feb 27, 2026 | Other | OGN Organon & Co. Common Stock | $29.8K | -4K -2.23% | 180,751 0.07% of shares | low |
| Mar 31, 2026 | Other | OGN Organon & Co. Common Stock | $23.5K | -4K -2.04% | 198,580 0.08% of shares | low |
| May 14, 2026 | Exercise | CERT Certara, Inc. Common Stock | $0 | +16K +7.98% | 213,316 0.14% of shares | low |
| Mar 31, 2026 | Exercise | OGN Organon & Co. Common Stock | $0 | +22K +10.85% | 220,126 0.08% of shares | low |
| Mar 31, 2026 | Exercise | OGN Organon & Co. Common Stock | $0 | +12K +6.32% | 202,707 0.08% of shares | low |
| Mar 29, 2026 | Exercise | OGN Organon & Co. Common Stock | $0 | +15K +8.34% | 195,822 0.07% of shares | low |
| Feb 27, 2026 | Grant | OGN Organon & Co. Common Stock | $0 | +12K +6.98% | 184,216 0.07% of shares | low |