4D Molecular Therapeutics, Inc. — 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 |
|---|---|---|---|---|---|---|---|
| Gupta Ashoo | VP, Finance and Controller | Option Exercise | 866 | — | — | 46,528 | Dec 20, 2025 |
| Bizily Scott | Chief Legal Officer | Sale | 1,635 | $10.90 | $17,822 | 3,594 | Dec 16, 2025 |
| THEUER CHARLES | — | Option Exercise | 9,333 | $1.14 | $10,640 | 41,684 | Dec 12, 2025 |
| Bizily Scott | Chief Legal Officer | Sale | 1,635 | $10.59 | $17,315 | 3,594 | Nov 17, 2025 |
| Bizily Scott | Chief Legal Officer | Sale | 2,678 | $12.00 | $32,136 | 3,594 | Oct 24, 2025 |
| Bizily Scott | Chief Legal Officer | Sale | 1,635 | $10.17 | $16,628 | 5,188 | Oct 16, 2025 |
| Bizily Scott | Chief Legal Officer | Sale | 2,408 | $10.00 | $24,080 | 5,188 | Oct 9, 2025 |
| Bizily Scott | Chief Legal Officer | Sale | 2,407 | $8.00 | $19,256 | 7,596 | Sep 23, 2025 |
| RA CAPITAL MANAGEMENT, L.P. | — | Other | 535,000 | — | — | 4,563,211 | Dec 9, 2024 |
| BVF I GP LLC | — | Other | 2,378,000 | — | — | 662,970 | Nov 8, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 500 | $6.49 | $3,245 | 7,281 | Sep 16, 2024 |
| Bizily Scott | Chief Legal Officer | Sale | 500 | $15.00 | $7,500 | 6,781 | Aug 19, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 500 | $6.49 | $3,245 | 7,281 | Jul 16, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 1,996 | $15.78 | $31,497 | 8,777 | Jul 11, 2024 |
| Kirn David | Chief Executive Officer | Sale | 12,923 | $22.49 | $290,638 | 1,059,153 | Jul 10, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 2,916 | $8.04 | $23,445 | 5,985 | Jul 1, 2024 |
| Kirn David | Chief Executive Officer | Option Exercise | 12,930 | $14.42 | $186,451 | 1,072,083 | Jun 24, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 1,250 | $8.04 | $10,050 | 3,487 | Jun 17, 2024 |
| Bizily Scott | Chief Legal Officer | Sale | 467 | $25.75 | $12,025 | 1,737 | May 16, 2024 |
| Bizily Scott | Chief Legal Officer | Sale | 1,750 | $25.74 | $45,045 | 1,737 | Apr 16, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 1,996 | $15.78 | $31,497 | 7,981 | Apr 1, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 1,491 | $25.98 | $38,736 | 7,570 | Mar 27, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 500 | $6.49 | $3,245 | 2,237 | Mar 18, 2024 |
| Bizily Scott | Chief Legal Officer | Sale | 1,909 | $30.00 | $57,270 | 1,737 | Feb 27, 2024 |
| Bizily Scott | Chief Legal Officer | Option Exercise | 1,250 | $8.04 | $10,050 | 3,487 | Feb 16, 2024 |
| Bizily Scott | Chief Legal Officer | Sale | 1,332 | $27.50 | $36,630 | 1,737 | Feb 8, 2024 |
| Kirn David | Chief Executive Officer | Sale | 92,001 | $27.13 | $2,495,987 | 1,059,153 | Feb 8, 2024 |
| Kim Robert Young | Chief Medical Officer | Sale | 6,000 | $30.05 | $180,300 | 1,595 | Feb 5, 2024 |
| Kirn David | Chief Executive Officer | Sale | 5,696 | $18.41 | $104,863 | 1,151,154 | Jan 23, 2024 |
| Viking Global Opportunities Illiquid Investments Sub-Master LP | — | Sale | 540,000 | $19.53 | $10,546,200 | 4,247,914 | Jan 4, 2024 |
| Kirn David | Chief Executive Officer | Sale | 40,732 | $20.31 | $827,267 | 1,185,087 | Dec 15, 2023 |
| Bizily Scott | Chief Legal and HR Officer | Option Exercise | 3,750 | $8.04 | $30,150 | 5,487 | Jun 8, 2023 |
| Bizily Scott | Chief Legal and HR Officer | Option Exercise | 1,875 | $6.49 | $12,169 | 3,984 | Jun 1, 2023 |
| Moretti August J | Chief Financial Officer | Option Exercise | 3,000 | $9.41 | $28,230 | 11,045 | May 15, 2023 |
| Shabet Rose Sharon | — | Purchase | 850,000 | $16.00 | $13,600,000 | 4,787,914 | May 9, 2023 |
| Kirn David | Chief Executive Officer | Gift | 600,000 | — | — | 600,000 | May 2, 2023 |
| Bizily Scott | Chief Legal and HR Officer | Option Exercise | 3,750 | $8.04 | $30,150 | 5,859 | Apr 21, 2023 |
| Chacko Jacob | — | Sale | 5,000 | $20.05 | $100,250 | — | Apr 21, 2023 |
| Bizily Scott | Chief Legal and HR Officer | Sale | 2,248 | $19.30 | $43,386 | 2,109 | Mar 1, 2023 |
| Kirn David | Chief Executive Officer | Sale | 907 | $21.49 | $19,491 | 1,875,602 | Feb 21, 2023 |
| Kirn David | Chief Executive Officer | Sale | 10,899 | $20.03 | $218,307 | 1,902,224 | Jan 20, 2023 |
| Moretti August J | Chief Financial Officer | Option Exercise | 3,000 | $9.41 | $28,230 | 6,595 | Dec 21, 2022 |
| Kirn David | Chief Executive Officer | Sale | 1,500 | $24.13 | $36,195 | 1,967,067 | Dec 15, 2022 |
| Bizily Scott | Chief Legal and HR Officer | Sale | 400 | $21.52 | $8,608 | 4,332 | Dec 1, 2022 |
| SCHAFFER DAVID | — | Sale | 11,565 | $31.02 | $358,746 | 925,935 | Oct 22, 2021 |
| SCHAFFER DAVID | — | Sale | 7,806 | $27.99 | $218,490 | 958,950 | Sep 30, 2021 |
| SCHAFFER DAVID | — | Sale | 100 | $34.19 | $3,419 | 980,668 | Sep 27, 2021 |
| Moretti August J | Chief Financial Officer | Option Exercise | 1,000 | $9.41 | $9,410 | 2,000 | Apr 12, 2021 |
| Ott David C. | — | C | 833,333 | — | — | 2,837,914 | Dec 15, 2020 |
| MILLIGAN JOHN F | — | Purchase | 100,000 | $23.00 | $2,300,000 | 100,000 | Dec 15, 2020 |