Centessa Pharmaceuticals plc — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| HUSSAIN IQBAL J | General Counsel | Tax Withholding | 7,520 | $16.35 | $122,952 | 118,265 | Dec 31, 2024 |
| SAHA SAURABH | Chief Executive Officer | Tax Withholding | 36,263 | $16.35 | $592,900 | 484,398 | Dec 31, 2024 |
| Bush Tia L | Chief Technology & Quality Ofc | Tax Withholding | 6,419 | $16.35 | $104,951 | 141,196 | Dec 31, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Option Exercise | 10,000 | $3.85 | $38,500 | 193,266 | Dec 26, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 55,000 | $17.44 | $959,200 | 520,661 | Dec 20, 2024 |
| Bush Tia L | Chief Technology & Quality Ofc | Option Exercise | 17,813 | $3.85 | $68,580 | 165,428 | Dec 17, 2024 |
| HUSSAIN IQBAL J | General Counsel | Option Exercise | 6,000 | $5.84 | $35,040 | 203,490 | Dec 16, 2024 |
| Anderson Karen M. | Chief People Officer | Option Exercise | 5,876 | $3.85 | $22,623 | 77,401 | Dec 13, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 87,496 | $18.46 | $1,615,176 | 575,661 | Dec 6, 2024 |
| SAHA SAURABH | Chief Executive Officer | Option Exercise | 299 | $5.84 | $1,746 | 575,960 | Nov 25, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Option Exercise | 10,000 | $3.85 | $38,500 | 193,266 | Nov 25, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 3,511 | $18.24 | $64,041 | 575,661 | Nov 21, 2024 |
| SAHA SAURABH | Chief Executive Officer | Option Exercise | 32,023 | $5.84 | $187,014 | 662,684 | Nov 13, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Sale | 11,742 | $15.38 | $180,592 | 183,266 | Oct 25, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 30,203 | $15.67 | $473,281 | 633,253 | Oct 23, 2024 |
| CHAO DAVID M | Chief Administrative Officer | Tax Withholding | 10,385 | $15.79 | $163,979 | 252,216 | Sep 30, 2024 |
| HUSSAIN IQBAL J | General Counsel | Tax Withholding | 7,520 | $15.79 | $118,741 | 197,490 | Sep 30, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Tax Withholding | 11,742 | $15.79 | $185,406 | 195,008 | Sep 30, 2024 |
| SAHA SAURABH | Chief Executive Officer | Tax Withholding | 36,263 | $15.79 | $572,593 | 685,661 | Sep 30, 2024 |
| Bush Tia L | Chief Technology & Quality Ofc | Tax Withholding | 6,419 | $15.79 | $101,356 | 157,226 | Sep 30, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Sale | 16,619 | $15.69 | $260,752 | 206,750 | Sep 25, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 55,000 | $16.53 | $909,150 | 721,924 | Sep 20, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Sale | 30,000 | $17.00 | $510,000 | 223,369 | Sep 10, 2024 |
| SAHA SAURABH | Chief Executive Officer | Option Exercise | 175,000 | $5.84 | $1,022,000 | 951,924 | Sep 10, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Sale | 25,000 | $15.00 | $375,000 | 223,369 | Sep 9, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 46,651 | $12.30 | $573,807 | 776,924 | Aug 23, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Sale | 17,802 | $12.29 | $218,787 | 223,369 | Aug 22, 2024 |
| SAHA SAURABH | Chief Executive Officer | Sale | 4,169 | $12.32 | $51,362 | 827,755 | Aug 21, 2024 |
| CHAO DAVID M | Chief Administrative Officer | Tax Withholding | 10,385 | $9.03 | $93,777 | 262,601 | Jun 30, 2024 |
| HUSSAIN IQBAL J | General Counsel | Tax Withholding | 7,520 | $9.03 | $67,906 | 205,010 | Jun 30, 2024 |
| Weinhoff Gregory M | Chief Business Officer | Tax Withholding | 11,742 | $9.03 | $106,030 | 253,369 | Jun 30, 2024 |
| SAHA SAURABH | Chief Executive Officer | Tax Withholding | 36,263 | $9.03 | $327,455 | 831,924 | Jun 30, 2024 |
| Bush Tia L | Chief Technology & Quality Ofc | Tax Withholding | 6,419 | $9.03 | $57,964 | 163,645 | Jun 30, 2024 |
| CHAO DAVID M | Chief Administrative Officer | Tax Withholding | 10,385 | $11.30 | $117,351 | 272,986 | Mar 31, 2024 |
| Weinhoff Gregory M | Chief Financial Officer | Tax Withholding | 11,742 | $11.30 | $132,685 | 265,111 | Mar 31, 2024 |
| SAHA SAURABH | Chief Executive Officer | Tax Withholding | 36,263 | $11.30 | $409,772 | 868,187 | Mar 31, 2024 |
| HUSSAIN IQBAL J | General Counsel | Tax Withholding | 7,520 | $11.30 | $84,976 | 212,530 | Mar 31, 2024 |
| Bush Tia L | Chief Technology & Quality Ofc | Tax Withholding | 6,419 | $11.30 | $72,535 | 170,064 | Mar 31, 2024 |
| Anderson Karen M. | Chief People Officer | Sale | 21,165 | $12.21 | $258,425 | 71,525 | Mar 25, 2024 |
| CHAO DAVID M | Chief Administrative Officer | Tax Withholding | 9,503 | $8.19 | $77,830 | 283,371 | Feb 1, 2024 |
| HUSSAIN IQBAL J | General Counsel | Tax Withholding | 7,885 | $8.19 | $64,578 | 220,050 | Feb 1, 2024 |
| Weinhoff Gregory M | Chief Financial Officer | Tax Withholding | 11,494 | $8.19 | $94,136 | 276,853 | Feb 1, 2024 |
| SAHA SAURABH | Chief Executive Officer | Award / Grant | 144,200 | — | — | 930,773 | Feb 1, 2024 |
| Bush Tia L | Chief Quality Officer | Award / Grant | 42,500 | — | — | 180,345 | Feb 1, 2024 |
| Rotman Harris | SVP Regulatory Affairs | Award / Grant | 37,500 | — | — | 71,000 | Feb 1, 2024 |
| Anderson Karen M. | Chief People Officer | Tax Withholding | 7,265 | $8.19 | $59,500 | 77,685 | Feb 1, 2024 |
| CHAO DAVID M | Chief Administrative Officer | Tax Withholding | 10,419 | $7.96 | $82,935 | 255,374 | Dec 31, 2023 |
| Weinhoff Gregory M | Chief Financial Officer | Tax Withholding | 11,742 | $7.96 | $93,466 | 257,097 | Dec 31, 2023 |
| HUSSAIN IQBAL J | General Counsel | Tax Withholding | 7,520 | $7.96 | $59,859 | 185,435 | Dec 31, 2023 |
| SAHA SAURABH | Chief Executive Officer | Tax Withholding | 36,263 | $7.96 | $288,653 | 786,573 | Dec 31, 2023 |