WALSH MATTHEW M
SEC CIK 1269428 · EDGAR
BoughtSold
Most active insiders at CERT, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Feehery William F | CEO, Dir | $200.0K | — |
| 2 | Bedi Arjun | Dir | — | — |
| 3 | Resnick Jon Matthew | CEO, Dir | — | — |
| 4 | McKemey Adrian | Pres, Drug Dev. Solutions | — | — |
| 5 | Reynders John V W | CFO, Dir | — | — |
| 6 | Corcoran Daniel | SVP, GC | — | — |
| 7 | Anhalt Rona | CHRO | — | — |
| 8 | Aspbury Robert | Pres, PREDICTIVE TECH | — | — |
| 9 | Gallagher John E | CFO | — | — |
| 10 | Killefer Nancy | Dir | — | — |
| 14 | WALSH MATTHEW M | Dir | — | — |
Transactions 36
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-05-15 16:25 | 2026-05-14 | CERT | Certara, Inc. | WALSH MATTHEW M | Dir | M - OptEx | $0.00 | +15.8K | 213.3K | +8% | $0 |
| DM | 2026-04-02 16:13 | 2026-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $0.00 | +33.6K | 220.1K | +18% | $0 |
| DM | 2026-04-02 16:13 | 2026-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $5.70 | -11.5K | 212.7K | -5% | -$65.6K |
| D | 2026-03-31 | 2026-03-29 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $0.00 | +15.1K | 195.8K | +8% | $0 |
| D | 2026-03-31 | 2026-03-29 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $5.84 | -5,162 | 190.7K | -3% | -$30.1K |
| M | 2026-03-03 | 2026-02-27 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $7.18 | -19.0K | 172.2K | -10% | -$136.5K |
| M | 2026-03-03 | 2026-02-27 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | A - Grant | $0.00 | +54.6K | 187.1K | +41% | $0 |
| D | 2025-05-22 | 2025-05-21 | CERT | Certara, Inc. | WALSH MATTHEW M | Dir | M - OptEx | $0.00 | +11.9K | 197.6K | +6% | $0 |
| 2025-05-06 | 2025-05-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | P - Purchase | $8.82 | +11.4K | 144.5K | +9% | +$100.5K | |
| DM | 2025-04-02 | 2025-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $14.51 | -17.2K | 123.0K | -12% | -$249.2K |
| DM | 2025-04-02 | 2025-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $0.00 | +34.9K | 130.5K | +36% | $0 |
| M | 2025-02-24 | 2025-02-20 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $14.98 | -12.6K | 111.7K | -10% | -$188.3K |
| M | 2025-02-24 | 2025-02-20 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | A - Grant | $0.00 | +36.0K | 122.4K | +42% | $0 |
| 2024-09-05 | 2024-09-03 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $20.35 | -3,541 | 92.0K | -4% | -$72.1K | |
| 2024-09-05 | 2024-09-03 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | A - Grant | $0.00 | +7,189 | 95.5K | +8% | $0 | |
| D | 2024-05-23 | 2024-05-21 | CERT | Certara, Inc. | WALSH MATTHEW M | Dir | M - OptEx | $0.00 | +8,663 | 185.6K | +5% | $0 |
| D | 2024-05-07 | 2024-05-04 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $0.00 | +8,310 | 92.4K | +10% | $0 |
| D | 2024-05-07 | 2024-05-04 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $19.61 | -4,093 | 88.3K | -4% | -$80.3K |
| DM | 2024-04-03 | 2024-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $0.00 | +19.8K | 81.8K | +32% | $0 |
| DM | 2024-04-03 | 2024-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $18.80 | -9,752 | 78.0K | -11% | -$183.3K |
| D | 2024-03-01 | 2024-02-28 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | — | +33.0K | 85.5K | +63% | — |
| D | 2024-03-01 | 2024-02-28 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $18.04 | -11.4K | 74.1K | -13% | -$205.5K |
| D | 2023-08-08 | 2023-08-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | — | +22.3K | 63.4K | +54% | — |
| D | 2023-08-08 | 2023-08-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $21.53 | -11.0K | 52.4K | -17% | -$237.0K |
| D | 2023-05-19 | 2023-05-17 | CERT | Certara, Inc. | WALSH MATTHEW M | Dir | M - OptEx | $0.00 | +9,067 | 177.0K | +5% | $0 |
| D | 2023-05-08 | 2023-05-04 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | — | +8,310 | 45.1K | +23% | — |
| D | 2023-05-08 | 2023-05-04 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $24.24 | -4,043 | 41.1K | -9% | -$98.0K |
| D | 2023-04-04 | 2023-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $23.09 | -2,656 | 36.8K | -7% | -$61.3K |
| D | 2023-04-04 | 2023-03-31 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $0.00 | +7,753 | 39.5K | +24% | $0 |
| 2022-11-15 | 2022-11-14 | CERT | Certara, Inc. | WALSH MATTHEW M | Dir | S - Sale | $14.74 | -12.1K | 167.9K | -7% | -$177.7K | |
| D | 2022-08-09 | 2022-08-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $32.41 | -10.8K | 31.7K | -25% | -$349.7K |
| D | 2022-08-09 | 2022-08-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | — | +22.3K | 42.5K | +111% | — |
| D | 2022-05-05 | 2022-05-04 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $32.44 | -2,847 | 20.2K | -12% | -$92.4K |
| D | 2022-05-05 | 2022-05-04 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | — | +8,310 | 23.0K | +57% | — |
| D | 2021-08-09 | 2021-08-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | M - OptEx | $28.63 | +22.3K | 22.3K | New | +$639.7K |
| D | 2021-08-09 | 2021-08-05 | OGN | Organon & Co. | WALSH MATTHEW M | CFO | F - Tax | $28.63 | -7,653 | 14.7K | -34% | -$219.1K |
Purchase Sale Sale after option exercise All abbreviations