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Casdin Partners GP, LLC 4

Accession 0000919574-24-003576

CIK 0001860782other
View on SEC.govCompany Profile

Filed

Jun 11, 8:00 PM ET

Accepted

Jun 12, 2:32 PM ET

Size

18.5 KB

Accession

0000919574-24-003576

Insider Transaction Report

Form 4
Period: 2024-06-10
2seventy bio, Inc.TSVT
Casdin Partners GP, LLC
Director
Transactions
  • Award

    Common Stock, par value $0.0001 per share

    2024-06-10+6,025→ 22,625 total
  • Award

    Stock Options (Right to buy)

    2024-06-10$3.93/sh+12,050$47,357→ 12,050 total
    Exercise: $3.93→ Common Stock, par value $0.0001 per share (12,050 underlying)
Holdings

  • Common Stock, par value $0.0001 per share

    (indirect: See footnote)
    2,000,000

  • Total Return Swap

    (indirect: See footnote)
    → Common Stock, par value $0.0001 per share (536,784 underlying)
    536,784

  • Stock Options (Right to buy)

    Exercise: $4.54Exp: 2034-03-20→ Common Stock, par value $0.0001 per share (33,400 underlying)
    33,400
Casdin Capital, LLC
Director
Transactions
  • Award

    Stock Options (Right to buy)

    2024-06-10$3.93/sh+12,050$47,357→ 12,050 total
    Exercise: $3.93→ Common Stock, par value $0.0001 per share (12,050 underlying)
  • Award

    Common Stock, par value $0.0001 per share

    2024-06-10+6,025→ 22,625 total
Holdings

  • Common Stock, par value $0.0001 per share

    (indirect: See footnote)
    2,000,000

  • Stock Options (Right to buy)

    Exercise: $4.54Exp: 2034-03-20→ Common Stock, par value $0.0001 per share (33,400 underlying)
    33,400

  • Total Return Swap

    (indirect: See footnote)
    → Common Stock, par value $0.0001 per share (536,784 underlying)
    536,784
Casdin Partners Master Fund, L.P.
Director
Transactions
  • Award

    Stock Options (Right to buy)

    2024-06-10$3.93/sh+12,050$47,357→ 12,050 total
    Exercise: $3.93→ Common Stock, par value $0.0001 per share (12,050 underlying)
  • Award

    Common Stock, par value $0.0001 per share

    2024-06-10+6,025→ 22,625 total
Holdings

  • Common Stock, par value $0.0001 per share

    (indirect: See footnote)
    2,000,000

  • Stock Options (Right to buy)

    Exercise: $4.54Exp: 2034-03-20→ Common Stock, par value $0.0001 per share (33,400 underlying)
    33,400

  • Total Return Swap

    (indirect: See footnote)
    → Common Stock, par value $0.0001 per share (536,784 underlying)
    536,784
Casdin Eli
Director
Transactions
  • Award

    Common Stock, par value $0.0001 per share

    2024-06-10+6,025→ 22,625 total
  • Award

    Stock Options (Right to buy)

    2024-06-10$3.93/sh+12,050$47,357→ 12,050 total
    Exercise: $3.93→ Common Stock, par value $0.0001 per share (12,050 underlying)
Holdings

  • Common Stock, par value $0.0001 per share

    (indirect: See footnote)
    2,000,000

  • Stock Options (Right to buy)

    Exercise: $4.54Exp: 2034-03-20→ Common Stock, par value $0.0001 per share (33,400 underlying)
    33,400

  • Total Return Swap

    (indirect: See footnote)
    → Common Stock, par value $0.0001 per share (536,784 underlying)
    536,784
Footnotes (7)
  • [F1]Each restricted stock unit represents the right to receive one share of the Issuer's common Stock, par value $0.0001 per share.
  • [F2]These shares are comprised of (i) 16,000 restricted stock units that vest 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 and (ii) 6,025 restricted stock units that vest on the earlier of (a) June 10, 2025 or (b) the date of the next annual meeting of stockholders of the Issuer.
  • [F3]The securities are owned directly by Eli Casdin.
  • [F4]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.
  • [F5]This stock option vests on the earlier of (a) June 10, 2025 or (b) the date of the next annual meeting of stockholders of the Issuer.
  • [F6]This stock option vests ratably 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.
  • [F7]The Master Fund has entered into certain cash-settled total return swap agreements (the "Swap Agreements"), which represent, after the transaction reported herein, economic exposure to an aggregate of 536,784.15 notional shares of the Issuer's Common Stock, par value $0.0001 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

Documents

1 file

Issuer

2seventy bio, Inc.

CIK 0001860782

→
Entity typeother
IncorporatedDE

Related Parties

1
  • filerCIK 0001534260

Filing Metadata

Form type
4
Filed
Jun 11, 8:00 PM ET
Accepted
Jun 12, 2:32 PM ET
Size
18.5 KB
View on SEC.gov