Sandeep Laumas - Sep 10, 2025 Form 4 Insider Report for Instil Bio, Inc. (TIL)

Role
CFO and CBO
Signature
/s/ Sandeep Laumas, M.D.
Stock symbol
TIL
Transactions as of
Sep 10, 2025
Transactions value $
-$339,627
Form type
4
Date filed
9/12/2025, 05:00 PM
Previous filing
Jul 30, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Laumas Sandeep CFO and CBO C/O INSTIL BIO, INC., 3963 MAPLE AVENUE, SUITE 350, DALLAS /s/ Sandeep Laumas, M.D. 2025-09-12 0001721664

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TIL Common Stock Options Exercise $197K +17K $11.60 17K Sep 10, 2025 Direct
transaction TIL Common Stock Options Exercise $165K +13K +76.47% $12.68 30K Sep 10, 2025 Direct
transaction TIL Common Stock Sale -$404K -17.5K -58.46% $23.04 12.5K Sep 10, 2025 Direct F1
transaction TIL Common Stock Sale -$298K -12.5K -100% $23.88 0 Sep 10, 2025 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TIL Employee Stock Option (right to buy) Options Exercise $0 -17K -50% $0.00 17K Sep 10, 2025 Common Stock 17K $11.60 Direct F3
transaction TIL Employee Stock Option (right to buy) Options Exercise $0 -13K -30.23% $0.00 30K Sep 10, 2025 Common Stock 13K $12.68 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $22.70 to $23.69, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1).
F2 The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $23.71 to $24.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2).
F3 Stock option granted under the Instil Bio, Inc. 2021 Incentive Plan. 25% of the shares subject to the option vested on February 10, 2025 with the remainder vesting in substantially equal monthly tranches thereafter.
F4 Stock option granted under the Instil Bio, Inc. 2021 Incentive Plan. 25% of the shares subject to the option vested on January 8, 2024 with the remainder vesting in substantially equal monthly tranches thereafter.