Eli Casdin - 26 Feb 2026 Form 4 Insider Report for STANDARD BIOTOOLS INC. (LAB)

Role
Director, 10%+ Owner
Signature
/s/ Eli Casdin
Issuer symbol
LAB
Transactions as of
26 Feb 2026
Net transactions value
+$61,999
Form type
4
Filing time
02 Mar 2026, 20:02:27 UTC
Previous filing
24 Jun 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Casdin Eli Director, 10%+ Owner C/O STANDARD BIOTOOLS INC., 50 MILK STREET, 10TH FLOOR, BOSTON /s/ Eli Casdin 02 Mar 2026 0001534264

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LAB Common Stock Award $61,999 +52,991 +1.8% $1.17 2,954,053 26 Feb 2026 Direct F1, F2
holding LAB Common Stock 13,939,637 26 Feb 2026 Casdin Private Growth Equity Fund II, L.P. F3
holding LAB Common Stock 2,744,219 26 Feb 2026 By Casdin Private Growth Equity Fund, L.P. F4
holding LAB Common Stock 72,100,000 26 Feb 2026 Casdin Partners Master Fund, L.P. F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents Restricted Stock Units ("RSUs") that vest as to 25% on the last day of the last month of each fiscal quarter of 2026, subject to the Reporting Person's continued service through the applicable vesting date.
F2 The RSUs were issued to the Reporting Person, who elected to take RSUs in lieu of $62,000 in cash compensation for services as a board member.
F3 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 Capital, LLC ("Casdin"), the investment adviser to the Equity Fund II, and (ii) Eli Casdin, the managing member of Casdin.
F4 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.
F5 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, the investment adviser to the Master Fund, (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.

Remarks:

The Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.