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| Keyboard |
| FS Development Corp | |
|---|---|
| Ticker | IRON |
| CIK # | 0001816736 |
| CUSIP | 254604101 |
| Sector | Life Sciences - Pharmaceutical Preparations |
| Address | c/o Foresite Capital, 600 Montgomery St Suite 4500, San Francisco, CA 94111 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0001816736] | 10-K | |
| [0001816736] | 10-Q | |
| [0001816736] | 3 | |
| [0001816736] | 4 | |
| [0001816736] | 8-K | |
| [0001816736] | SC 13D | |
| [0001816736] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Savage William Jacob
Common Stock
|
2026-03-02 | Sell | 2,986 | $66.41 | 198,300 |
|
Savage William Jacob
Common Stock
|
2026-03-02 | Sell | 4,392 | $65.52 | 287,764 |
|
Franchi Jean M
Common Stock
|
2026-02-25 | Sell | 353 | $69.06 | 24,378 |
|
Franchi Jean M
Common Stock
|
2026-02-18 | Sell | 3,397 | $65.01 | 220,839 |
|
Franchi Jean M
Common Stock
|
2026-02-18 | Sell | 3,684 | $65.89 | 242,739 |
|
Quisel John D
Common Stock
|
2026-02-17 | Sell | 13,264 | $62.86 | 833,775 |
|
Franchi Jean M
Common Stock
|
2026-02-17 | Sell | 4,075 | $62.86 | 256,154 |
|
Yu Jonathan Yen-Wen
Common Stock
|
2026-02-17 | Sell | 3,231 | $62.86 | 203,101 |
|
Khara Rahul
Common Stock
|
2026-02-17 | Sell | 2,853 | $62.86 | 179,340 |
|
Stephenson Pamela
Common Stock
|
2026-02-17 | Sell | 5,531 | $62.86 | 347,679 |
|
Savage William Jacob
Common Stock
|
2026-02-17 | Sell | 3,256 | $62.86 | 204,672 |
|
Quisel John D
Stock Option (Right to Buy) · derivative
|
2026-02-10 | Grant | 82,800 | $0.00 | |
|
Khara Rahul
Stock Option (Right to Buy) · derivative
|
2026-02-10 | Grant | 25,500 | $0.00 | |
|
Savage William Jacob
Stock Option (Right to Buy) · derivative
|
2026-02-10 | Grant | 25,500 | $0.00 | |
|
Quisel John D
Common Stock
|
2026-02-10 | Grant | 55,200 | $0.00 | |
|
Franchi Jean M
Stock Option (Right to Buy) · derivative
|
2026-02-10 | Grant | 25,500 | $0.00 | |
|
Yu Jonathan Yen-Wen
Common Stock
|
2026-02-10 | Grant | 17,000 | $0.00 | |
|
Stephenson Pamela
Stock Option (Right to Buy) · derivative
|
2026-02-10 | Grant | 25,500 | $0.00 | |
|
Savage William Jacob
Common Stock
|
2026-02-10 | Grant | 17,000 | $0.00 | |
|
Stephenson Pamela
Common Stock
|
2026-02-10 | Grant | 17,000 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 206 | 40,730,922 |
| 2025-12-31 | 200 | 36,690,836 |
| 2025-09-30 | 171 | 33,665,746 |
| 2025-06-30 | 154 | 33,022,476 |
| 2025-03-31 | 161 | 31,844,464 |
| 2024-12-31 | 155 | 25,264,827 |
| 2024-09-30 | 134 | 26,288,498 |
| 2024-06-30 | 124 | 27,600,834 |
| 2024-03-31 | 137 | 23,040,024 |
| 2023-12-31 | 113 | 20,054,485 |
| 2023-09-30 | 94 | 19,510,430 |
| 2023-06-30 | 92 | 61,575,686 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| Assenagon Asset Management SA | [2026-06-30] | SOLE | 384,158 | 384,158 |
| Y-Intercept Hong Kong Ltd | [2026-06-30] | SOLE | 26,888 | 26,888 |
| Handelsbanken Fonder AB | [2026-06-30] | SOLE | 0 | 12,700 |
| PSP Research LLC | [2026-06-30] | SOLE | 0 | 8,000 |
| Eleva Capital SAS | [2026-06-30] | SOLE | 0 | 5,115 |
| Gamma Investing LLC | [2026-06-30] | DFND | 292 | 292 |
| Corecap Advisors LLC | [2026-06-30] | SOLE | 0 | 78 |
| Farther Finance Advisors LLC | [2026-06-30] | SOLE | 0 | 47 |
| First Horizon Corp | [2026-06-30] | DFND | 0 | 36 |
| Versant Capital Management Inc | [2026-06-30] | SOLE | 30 | 30 |
| Hughes Financial Services LLC | [2026-06-30] | SOLE | 2 | 2 |
| IFP Advisors LLC | [2026-06-30] | SOLE | 1 | 1 |
| Fortitude Family Office LLC | [2026-06-30] | SOLE | 1 | 1 | Prev | Page 1 | Next |