STTK
Shattuck Labs Inc
NASDAQ: STTK · HEALTHCARE · BIOTECHNOLOGY
$6.75
-2.46% today
Updated 2026-06-03
Market cap
$299.05M
P/E ratio
—
P/S ratio
299.05x
EPS (TTM)
$-0.56
Dividend yield
—
52W range
$1 – $8
Volume
0.5M
Shattuck Labs Inc (STTK) Insider transactions
Net insider activity
Net buying (89,882,689 shares)
Buy transactions
70
Sell transactions
30
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-12 | SHUKLA, ABHINAV A. | Chief Technical Officer | Sale | 2,032 | — | — |
| 2026-05-12 | SHUKLA, ABHINAV A. | Chief Technical Officer | Buy | 2,032 | $3.57 | $7254.24 |
| 2026-05-12 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Sale | 25,610 | — | — |
| 2026-05-12 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 25,610 | $1.08 | $27776.61 |
| 2026-05-12 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Sale | 30,000 | $6.61 | $198300.00 |
| 2026-05-12 | NEILL, ANDREW R | Chief Financial Officer | Sale | 64,027 | — | — |
| 2026-05-12 | NEILL, ANDREW R | Chief Financial Officer | Buy | 64,027 | $1.08 | $69443.68 |
| 2026-05-10 | STOUT, STEPHEN | See Remarks | Sale | 968 | $6.85 | $6630.80 |
| 2026-01-25 | STOUT, STEPHEN | See Remarks | Sale | 593 | $4.15 | $2460.95 |
| 2026-01-25 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Sale | 3,195 | $4.15 | $13259.25 |
| 2026-01-25 | NEILL, ANDREW R | Chief Financial Officer | Sale | 2,589 | $4.15 | $10744.35 |
| 2026-01-25 | DEYOUNG, CASI | Chief Business Officer | Sale | 2,286 | $4.15 | $9486.90 |
| 2026-01-10 | STOUT, STEPHEN | See Remarks | Buy | 351,400 | — | — |
| 2026-01-10 | STOUT, STEPHEN | See Remarks | Sale | 4,153 | $4.75 | $19726.75 |
| 2026-01-10 | SHUKLA, ABHINAV A. | Chief Technical Officer | Buy | 315,500 | — | — |
| 2026-01-10 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 1,548,300 | — | — |
| 2026-01-10 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Buy | 487,800 | — | — |
| 2026-01-10 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Sale | 6,851 | $4.75 | $32542.25 |
| 2026-01-10 | NEILL, ANDREW R | Chief Financial Officer | Buy | 549,800 | — | — |
| 2026-01-10 | NEILL, ANDREW R | Chief Financial Officer | Sale | 6,660 | $4.75 | $31635.00 |
| 2026-01-10 | DEYOUNG, CASI | Chief Business Officer | Buy | 381,600 | — | — |
| 2026-01-10 | DEYOUNG, CASI | Chief Business Officer | Sale | 5,699 | $4.75 | $27070.25 |
| 2025-08-28 | BAKER, DANIEL G. | Director | Buy | 66,300 | — | — |
| 2025-08-28 | ASHIYA, MONA | Director | Buy | 66,300 | — | — |
| 2025-08-25 | STOUT, STEPHEN | See Remarks | Buy | 12,805 | — | — |
| 2025-08-25 | STOUT, STEPHEN | See Remarks | Buy | 12,805 | $0.87 | $11110.90 |
| 2025-08-25 | SIEGALL, CLAY B | Director | Buy | 128,054 | — | — |
| 2025-08-25 | SIEGALL, CLAY B | Director | Buy | 128,054 | $0.87 | $111112.46 |
| 2025-08-25 | SHUKLA, ABHINAV A. | Chief Technical Officer | Buy | 5,122 | — | — |
| 2025-08-25 | SHUKLA, ABHINAV A. | Chief Technical Officer | Buy | 5,122 | $0.87 | $4444.36 |
| 2025-08-25 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 25,610 | — | — |
| 2025-08-25 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 25,610 | $0.87 | $22221.80 |
| 2025-08-25 | REDMILE, GROUP, LLC | Director, 10% Owner | Buy | 4,097,730 | — | — |
| 2025-08-25 | REDMILE, GROUP, LLC | Director, 10% Owner | Buy | 4,097,730 | — | — |
| 2025-08-25 | ORBIMED, ADVISORS LLC | Director | Buy | 10,111,384 | — | — |
| 2025-08-25 | ORBIMED, ADVISORS LLC | Director | Buy | 2,022,277 | — | — |
| 2025-08-25 | ORBIMED, ADVISORS LLC | Director | Buy | 15,366,490 | — | — |
| 2025-08-25 | ORBIMED, ADVISORS LLC | Director | Buy | 3,073,298 | — | — |
| 2025-08-25 | ORBIMED, ADVISORS LLC | Director | Buy | 5,255,106 | $0.87 | $4.56M |
| 2025-08-25 | ORBIMED, ADVISORS LLC | Director | Buy | 1,051,021 | $0.87 | $911970.92 |
| 2025-08-25 | NEILL, ANDREW R | Chief Financial Officer | Buy | 64,027 | — | — |
| 2025-08-25 | NEILL, ANDREW R | Chief Financial Officer | Buy | 64,027 | $0.87 | $55556.23 |
| 2025-08-25 | ASHIYA, MONA | Director | Buy | 10,111,384 | — | — |
| 2025-08-25 | ASHIYA, MONA | Director | Buy | 2,022,277 | — | — |
| 2025-08-25 | ASHIYA, MONA | Director | Buy | 15,366,490 | — | — |
| 2025-08-25 | ASHIYA, MONA | Director | Buy | 3,073,298 | — | — |
| 2025-08-25 | ASHIYA, MONA | Director | Buy | 5,255,106 | $0.87 | $4.56M |
| 2025-08-25 | ASHIYA, MONA | Director | Buy | 1,051,021 | $0.87 | $911970.92 |
| 2025-07-14 | SIEGALL, CLAY B | Director | Buy | 33,150 | — | — |
| 2025-07-14 | SASSER, AMY KATE | Director | Buy | 33,150 | — | — |
| 2025-07-14 | REDMILE, GROUP, LLC | Director, 10% Owner | Buy | 33,150 | — | — |
| 2025-07-14 | LEE, MICHAEL STEWART | Director | Buy | 33,150 | — | — |
| 2025-07-14 | GOLUMBESKI, GEORGE | Director | Buy | 33,150 | — | — |
| 2025-07-14 | GIBSON, NEIL W | Director | Buy | 33,150 | — | — |
| 2025-07-14 | BROWNSTEIN, CARRIE | Director | Buy | 33,150 | — | — |
| 2025-07-14 | BROUS, TYLER | Director | Buy | 33,150 | — | — |
| 2025-07-14 | BOUDREAU, HELEN M | Director | Buy | 33,150 | — | — |
| 2025-01-28 | STOUT, STEPHEN | See Remarks | Buy | 177,000 | — | — |
| 2025-01-28 | SHUKLA, ABHINAV A. | Chief Technical Officer | Buy | 165,200 | — | — |
| 2025-01-28 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 684,600 | — | — |
| 2025-01-28 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Buy | 206,200 | — | — |
| 2025-01-28 | NEILL, ANDREW R | Chief Financial Officer | Buy | 214,000 | — | — |
| 2025-01-28 | DEYOUNG, CASI | Chief Business Officer | Buy | 194,300 | — | — |
| 2025-01-25 | SHUKLA, ABHINAV A. | Chief Technical Officer | Sale | 2,261 | $1.16 | $2622.76 |
| 2025-01-25 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Sale | 3,211 | $1.16 | $3724.76 |
| 2025-01-25 | DEYOUNG, CASI | Chief Business Officer | Sale | 2,297 | $1.16 | $2664.52 |
| 2025-01-10 | SHUKLA, ABHINAV A. | Chief Technical Officer | Sale | 4,830 | $1.19 | $5747.70 |
| 2025-01-10 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Sale | 6,884 | $1.19 | $8191.96 |
| 2025-01-10 | DEYOUNG, CASI | Chief Business Officer | Sale | 5,727 | $1.19 | $6815.13 |
| 2024-12-04 | REDMILE, GROUP, LLC | Director, 10% Owner | Buy | 1,026,888 | $1.25 | $1.28M |
| 2024-12-04 | REDMILE, GROUP, LLC | Director, 10% Owner | Buy | 133,371 | $1.25 | $166713.75 |
| 2024-10-07 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 36,500 | $1.21 | $44219.75 |
| 2024-06-28 | BROUS, TYLER | Director | Buy | 3,000 | $3.90 | $11700.00 |
| 2024-06-27 | BROUS, TYLER | Director | Buy | 5,416 | $3.89 | $21068.24 |
| 2024-06-26 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 14,400 | $3.47 | $50011.20 |
| 2024-06-21 | SIEGALL, CLAY B | Director | Buy | 27,700 | — | — |
| 2024-06-21 | SASSER, AMY KATE | Director | Buy | 27,700 | — | — |
| 2024-06-21 | REDMILE, GROUP, LLC | Director, 10% Owner | Buy | 27,700 | — | — |
| 2024-06-21 | LEE, MICHAEL STEWART | Director | Buy | 27,700 | — | — |
| 2024-06-21 | GOLUMBESKI, GEORGE | Director | Buy | 27,700 | — | — |
| 2024-06-21 | GIBSON, NEIL W | Director | Buy | 27,700 | — | — |
| 2024-06-21 | BROWNSTEIN, CARRIE | Director | Buy | 27,700 | — | — |
| 2024-06-21 | BROUS, TYLER | Director | Buy | 27,700 | — | — |
| 2024-06-21 | BOUDREAU, HELEN M | Director | Buy | 27,700 | — | — |
| 2024-06-04 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Sale | 3,050 | — | — |
| 2024-06-04 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 3,050 | $3.57 | $10888.50 |
| 2024-05-10 | STOUT, STEPHEN | See Remarks | Sale | 967 | $10.42 | $10076.14 |
| 2024-03-28 | REDMILE, GROUP, LLC | Director, 10% Owner | Sale | 4,425 | — | — |
| 2024-03-06 | STOUT, STEPHEN | See Remarks | Sale | 6,459 | — | — |
| 2024-03-06 | STOUT, STEPHEN | See Remarks | Sale | 4,650 | — | — |
| 2024-03-06 | STOUT, STEPHEN | See Remarks | Buy | 6,459 | $3.57 | $23058.63 |
| 2024-03-06 | STOUT, STEPHEN | See Remarks | Sale | 4,895 | $10.53 | $51544.35 |
| 2024-03-06 | STOUT, STEPHEN | See Remarks | Sale | 4,650 | $10.53 | $48964.50 |
| 2024-03-06 | SIEGALL, CLAY B | Director | Buy | 33,409 | — | — |
| 2024-03-06 | SASSER, AMY KATE | Director | Buy | 33,409 | — | — |
| 2024-01-30 | STOUT, STEPHEN | See Remarks | Sale | 593 | $9.99 | $5924.07 |
| 2024-01-30 | SHUKLA, ABHINAV A. | Chief Technical Officer | Sale | 2,290 | $9.99 | $22877.10 |
| 2024-01-30 | PANDITE, ARUNDATHY N. | Chief Medical Officer | Sale | 2,920 | $9.99 | $29170.80 |
| 2024-01-30 | DEYOUNG, CASI | Chief Business Officer | Sale | 2,008 | $9.99 | $20059.92 |
| 2024-01-12 | SCHREIBER, TAYLOR | Director, Chief Executive Officer | Buy | 330,100 | — | — |
Frequently asked questions
Are STTK insiders buying or selling?
Over the transactions on record, STTK insiders have been net buyers, with about $570240.21 in stock sold across 30 sales, against 20 open-market purchases.
Does insider selling at STTK mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which STTK insiders are selling the most?
Recent selling is concentrated in a few names. PANDITE, ARUNDATHY N. accounts for the largest share on record, with about $285189.02 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.