Casdin Capital, LLC - Mar 26, 2024 Form 4 Insider Report for 2seventy bio, Inc. (TSVT)

Role
Director
Signature
Casdin Capital LLC, By: /s/ Eli Casdin, Managing Member
Stock symbol
TSVT
Transactions as of
Mar 26, 2024
Transactions value $
$203,992
Form type
4
Date filed
3/28/2024, 08:29 PM
Previous filing
Mar 25, 2024
Next filing
May 15, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TSVT Common Stock, par value $0.0001 per share Purchase $204K +40K +2.04% $5.10 2M Mar 26, 2024 See footnote. F1, F2
holding TSVT Common Stock, par value $0.0001 per share 16.6K Mar 26, 2024 Direct F3, 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 a weighted average price. These shares were bought in multiple transactions within the range of $4.9 to $5.41. 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 bought at each separate price within the range set forth in this footnote.
F2 The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.
F3 This restricted stock unit award vests ratable over three years in annual installments with the first installment vesting on March 20, 2025, subject to the Reporting Person's continued service through the applicable vesting date.
F4 The securities are owned directly by Eli Casdin.

Remarks:

Eli Casdin has been deputized to represent the Reporting Persons on the board of directors of the Issuer. By virtue of Mr. Casdin's representation, for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act"), each of the Reporting Persons may be deemed directors by deputization of the Issuer. Each Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of its pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.