FDMT
4D Molecular Therapeutics Inc
NASDAQ: FDMT · HEALTHCARE · BIOTECHNOLOGY
$8.87
+0.68% today
Updated 2026-04-30
Market cap
$479.88M
P/E ratio
—
P/S ratio
5.63x
EPS (TTM)
$-2.42
Dividend yield
—
52W range
$3 – $12
Volume
0.8M
4D Molecular Therapeutics Inc (FDMT) Insider transactions
Net insider activity
Net buying (2,661,016 shares)
Buy transactions
48
Sell transactions
52
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-25 | SIMMS, CHRISTOPHER PAUL | See Remarks | Buy | 219,000 | — | — |
| 2026-03-25 | KIRN, DAVID | Director, Chief Executive Officer | Buy | 750,000 | — | — |
| 2026-03-25 | BIZILY, SCOTT | Chief Legal Officer | Buy | 217,000 | — | — |
| 2026-03-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 865 | — | — |
| 2026-03-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 221 | — | — |
| 2026-03-20 | GUPTA, ASHOO | VP, Finance and Controller | Buy | 865 | — | — |
| 2026-03-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 310 | $8.61 | $2669.10 |
| 2026-03-20 | GUPTA, ASHOO | VP, Finance and Controller | Buy | 221 | — | — |
| 2026-03-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 80 | $8.61 | $688.80 |
| 2026-01-05 | SBLENDORIO, GLENN | Director | Buy | 45,000 | — | — |
| 2025-12-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 866 | — | — |
| 2025-12-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 220 | — | — |
| 2025-12-20 | GUPTA, ASHOO | VP, Finance and Controller | Buy | 866 | — | — |
| 2025-12-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 310 | $8.68 | $2690.80 |
| 2025-12-20 | GUPTA, ASHOO | VP, Finance and Controller | Buy | 220 | — | — |
| 2025-12-20 | GUPTA, ASHOO | VP, Finance and Controller | Sale | 79 | $8.68 | $685.72 |
| 2025-12-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,635 | — | — |
| 2025-12-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,635 | $10.90 | $17821.50 |
| 2025-12-12 | THEUER, CHARLES | Director | Sale | 9,333 | — | — |
| 2025-12-12 | THEUER, CHARLES | Director | Buy | 9,333 | $1.14 | $10639.62 |
| 2025-12-09 | HUMER, KRISTIAN | Chief Financial Officer | Buy | 480,000 | — | — |
| 2025-11-17 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,635 | — | — |
| 2025-11-17 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,635 | $4.14 | $6768.90 |
| 2025-10-24 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,084 | — | — |
| 2025-10-24 | BIZILY, SCOTT | Chief Legal Officer | Sale | 2,678 | $12.00 | $32136.00 |
| 2025-10-24 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,084 | $6.49 | $7035.16 |
| 2025-10-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,635 | — | — |
| 2025-10-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,635 | $10.17 | $16627.95 |
| 2025-10-09 | BIZILY, SCOTT | Chief Legal Officer | Sale | 2,408 | $10.00 | $24080.00 |
| 2025-09-23 | BIZILY, SCOTT | Chief Legal Officer | Sale | 2,407 | $8.00 | $19256.00 |
| 2025-06-17 | TOMASELLO, SHAWN | Director | Buy | 22,500 | — | — |
| 2025-06-17 | THEUER, CHARLES | Director | Buy | 22,500 | — | — |
| 2025-06-17 | MILLIGAN, JOHN F | Director | Buy | 33,750 | — | — |
| 2025-06-17 | MILLER-RICH, NANCY | Director | Buy | 22,500 | — | — |
| 2025-06-17 | GRAY, SUSANNAH | Director | Buy | 22,500 | — | — |
| 2025-06-17 | CHACKO, JACOB | Director | Buy | 22,500 | — | — |
| 2025-03-06 | MEHRA, UNEEK | See Remarks | Buy | 130,000 | — | — |
| 2025-03-06 | KIRN, DAVID | Director, Chief Executive Officer | Buy | 267,500 | — | — |
| 2025-03-06 | KIM, ROBERT YOUNG | Chief Medical Officer | Buy | 92,300 | — | — |
| 2025-03-06 | KAMAL, FARIBORZ | President & COO | Buy | 178,400 | — | — |
| 2025-03-06 | BIZILY, SCOTT | Chief Legal Officer | Buy | 78,500 | — | — |
| 2024-12-09 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 535,000 | — | — |
| 2024-12-09 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Sale | 535,000 | — | — |
| 2024-11-08 | BVF, PARTNERS L P/IL | See Explanation of Responses | Buy | 3,062,000 | — | — |
| 2024-11-08 | BVF, PARTNERS L P/IL | See Explanation of Responses | Buy | 2,378,000 | — | — |
| 2024-11-08 | BVF, PARTNERS L P/IL | See Explanation of Responses | Buy | 240,000 | — | — |
| 2024-11-08 | BVF, PARTNERS L P/IL | See Explanation of Responses | Sale | 3,062,000 | — | — |
| 2024-11-08 | BVF, PARTNERS L P/IL | See Explanation of Responses | Sale | 2,378,000 | — | — |
| 2024-11-08 | BVF, PARTNERS L P/IL | See Explanation of Responses | Sale | 240,000 | — | — |
| 2024-09-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 500 | — | — |
| 2024-09-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 500 | $6.49 | $3245.00 |
| 2024-08-19 | BIZILY, SCOTT | Chief Legal Officer | Sale | 500 | — | — |
| 2024-08-19 | BIZILY, SCOTT | Chief Legal Officer | Buy | 500 | $6.49 | $3245.00 |
| 2024-07-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,250 | — | — |
| 2024-07-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 500 | — | — |
| 2024-07-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,750 | $27.11 | $47442.50 |
| 2024-07-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,250 | $8.04 | $10050.00 |
| 2024-07-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 500 | $6.49 | $3245.00 |
| 2024-07-11 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,996 | — | — |
| 2024-07-11 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,996 | $25.00 | $49900.00 |
| 2024-07-10 | KIRN, DAVID | Director, Chief Executive Officer | Sale | 11,653 | — | — |
| 2024-07-10 | KIRN, DAVID | Director, Chief Executive Officer | Sale | 1,270 | — | — |
| 2024-07-10 | KIRN, DAVID | Director, Chief Executive Officer | Sale | 12,923 | $22.49 | $290598.21 |
| 2024-07-10 | KIRN, DAVID | Director, Chief Executive Officer | Buy | 11,653 | $14.42 | $168036.26 |
| 2024-07-10 | KIRN, DAVID | Director, Chief Executive Officer | Buy | 1,270 | $15.78 | $20040.60 |
| 2024-07-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 2,916 | — | — |
| 2024-07-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,332 | — | — |
| 2024-07-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 4,248 | $21.36 | $90757.67 |
| 2024-07-01 | BIZILY, SCOTT | Chief Legal Officer | Buy | 2,916 | $8.04 | $23444.64 |
| 2024-07-01 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,332 | $6.49 | $8644.68 |
| 2024-06-24 | KIRN, DAVID | Director, Chief Executive Officer | Sale | 12,930 | — | — |
| 2024-06-24 | KIRN, DAVID | Director, Chief Executive Officer | Sale | 12,930 | $23.10 | $298711.45 |
| 2024-06-17 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,250 | — | — |
| 2024-06-17 | BIZILY, SCOTT | Chief Legal Officer | Sale | 500 | — | — |
| 2024-06-17 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,750 | $23.71 | $41493.55 |
| 2024-06-17 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,250 | $8.04 | $10050.00 |
| 2024-06-17 | BIZILY, SCOTT | Chief Legal Officer | Buy | 500 | $6.49 | $3245.00 |
| 2024-05-21 | TOMASELLO, SHAWN | Director | Buy | 22,500 | — | — |
| 2024-05-21 | THEUER, CHARLES | Director | Buy | 22,500 | — | — |
| 2024-05-21 | MILLIGAN, JOHN F | Director | Buy | 26,791 | — | — |
| 2024-05-21 | MILLER-RICH, NANCY | Director | Buy | 22,500 | — | — |
| 2024-05-21 | GRAY, SUSANNAH | Director | Buy | 22,500 | — | — |
| 2024-05-21 | CHACKO, JACOB | Director | Buy | 22,500 | — | — |
| 2024-05-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,250 | — | — |
| 2024-05-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 500 | — | — |
| 2024-05-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,283 | $25.34 | $32513.79 |
| 2024-05-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,250 | $8.04 | $10050.00 |
| 2024-05-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 500 | $6.49 | $3245.00 |
| 2024-05-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 467 | $25.75 | $12027.26 |
| 2024-04-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,250 | — | — |
| 2024-04-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 500 | — | — |
| 2024-04-16 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,750 | $25.74 | $45045.00 |
| 2024-04-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 1,250 | $8.04 | $10050.00 |
| 2024-04-16 | BIZILY, SCOTT | Chief Legal Officer | Buy | 500 | $6.49 | $3245.00 |
| 2024-04-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 2,916 | — | — |
| 2024-04-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,996 | — | — |
| 2024-04-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,909 | — | — |
| 2024-04-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 1,332 | — | — |
| 2024-04-01 | BIZILY, SCOTT | Chief Legal Officer | Sale | 8,153 | $31.78 | $259102.34 |
| 2024-04-01 | BIZILY, SCOTT | Chief Legal Officer | Buy | 2,916 | $8.04 | $23444.64 |