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4//SEC Filing

Casdin Partners Master Fund, L.P. 4

Accession 0000919574-25-005636

CIK 0001162194other
View on SEC.govCompany Profile

Filed

Sep 10, 8:00 PM ET

Accepted

Sep 11, 9:03 PM ET

Size

22.2 KB

Accession

0000919574-25-005636

Insider Transaction Report

Form 4
Period: 2025-09-09
STANDARD BIOTOOLS INC.LAB
Casdin Eli
Director10% Owner
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219
Casdin Capital, LLC
Director10% Owner
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637
Casdin Partners Master Fund, L.P.
Director10% Owner
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219
CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC
Director
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637
Casdin Partners GP, LLC
Director10% Owner
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219

  • Common Stock, $0.001 par value per share

    2,901,062
Casdin Private Growth Equity Fund II, L.P.
Director
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637
Casdin Private Growth Equity Fund II GP, LLC
Director
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637
Casdin Private Growth Equity Fund, L.P.
Director
Transactions
  • Purchase

    Common Stock, $0.001 par value per share

    2025-09-09$1.29/sh+100,000$128,920→ 60,875,000 total(indirect: See footnote)
Holdings

  • Common Stock, $0.001 par value per share

    2,901,062

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    2,744,219

  • Common Stock, $0.001 par value per share

    (indirect: See footnote)
    13,939,637
Footnotes (5)
  • [F1]The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2889 to $1.2895. The Reporting Persons 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 ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.
  • [F3]The securities are owned directly by Eli Casdin.
  • [F4]The securities are owned directly by Casdin Private Growth Equity Fund II, L.P. (the "Equity Fund II") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund II, and (ii) Eli Casdin, the managing member of Casdin.
  • [F5]The securities are owned directly by Casdin Private Growth Equity Fund, L.P. (the "Equity Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund, and (ii) Eli Casdin, the managing member of Casdin.

Documents

1 file

Issuer

STANDARD BIOTOOLS INC.

CIK 0001162194

→
Entity typeother
IncorporatedCayman Islands

Related Parties

1
  • filerCIK 0001534265

Filing Metadata

Form type
4
Filed
Sep 10, 8:00 PM ET
Accepted
Sep 11, 9:03 PM ET
Size
22.2 KB
View on SEC.gov