Shattuck Labs, Inc. (STTK) Insider Ownership

Historic Ownership Trends

Based on data from the past 90 days ending December 12, 2025, Shattuck Labs's three largest insider shareholders are Chief Executive Officer Taylor Schreiber (2.71Mn shares), Director Advisors Llc Orbimed (1.05Mn shares), Director Mona Ashiya (1.05Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Group, Llc Redmile 5,539,724 06 Dec, 2024
Josiah Hornblower 3,155,084 25 Jun, 2021
Taylor Schreiber Chief Executive Officer 2,707,362 27 Aug, 2025
Advisors Llc Orbimed 1,051,021 02 Sep, 2025
Mona Ashiya 1,051,021 02 Sep, 2025
Tyler Brous 238,088 01 Jul, 2024
Andrew R Neill Chief Financial Officer 237,473 27 Aug, 2025
Arundathy N. Pandite Chief Medical Officer 206,265 28 Jan, 2025
Clay B Siegall 128,054 27 Aug, 2025
Erin Ator Thomson General Counsel 103,209 27 Jan, 2023
Stephen Stout 86,275 27 Aug, 2025
Casi Deyoung Chief Business Officer 81,465 28 Jan, 2025
Abhinav A. Shukla Chief Technical Officer 81,258 27 Aug, 2025
George Golumbeski 54,613 27 Apr, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
25 Aug, 2025 Advisors Llc Orbimed Common Stock A 5,255,106 $0.87 5,255,106 I P
25 Aug, 2025 Andrew R Neill Common Stock A 64,027 $0.87 237,473 D A
25 Aug, 2025 Stephen Stout Common Stock A 12,805 $0.87 86,275 D A
25 Aug, 2025 Mona Ashiya Common Stock A 5,255,106 $0.87 5,255,106 I P
25 Aug, 2025 Abhinav A. Shukla Common Stock A 5,122 $0.87 81,258 D A
25 Aug, 2025 Taylor Schreiber Common Stock A 25,610 $0.87 96,612 D A
25 Aug, 2025 Clay B Siegall Common Stock A 128,054 $0.87 128,054 D A
25 Aug, 2025 Mona Ashiya Common Stock A 1,051,021 $0.87 1,051,021 I P
25 Aug, 2025 Advisors Llc Orbimed Common Stock A 1,051,021 $0.87 1,051,021 I P
25 Jan, 2025 Arundathy N. Pandite Common Stock D 3,211 $1.16 206,265 D F
25 Jan, 2025 Casi Deyoung Common Stock D 2,297 $1.16 81,465 D F
25 Jan, 2025 Abhinav A. Shukla Common Stock D 2,261 $1.16 73,536 D F
25 Jan, 2025 Arundathy N. Pandite - - 206,265 D
10 Jan, 2025 Arundathy N. Pandite Common Stock D 6,884 $1.19 209,476 D F
10 Jan, 2025 Casi Deyoung Common Stock D 5,727 $1.19 83,762 D F
10 Jan, 2025 Casi Deyoung - - 83,762 D
10 Jan, 2025 Abhinav A. Shukla Common Stock D 4,830 $1.19 74,597 D F
04 Dec, 2024 Group, Llc Redmile - - 5,406,353 I
04 Dec, 2024 Group, Llc Redmile Common Stock, par value $0.0001 per share D 133,371 $1.25 5,406,353 I S
04 Dec, 2024 Group, Llc Redmile - - 5,539,724 I