Standard BioTools Inc. (LAB)
Nasdaq: LAB · Laboratory Analytical Instruments · Boston, MA · filing with the SEC since 2002
Who owns Standard BioTools Inc.
As filed with the SECHolders of 5% or more
5
Eli Casdin holds 23.9% of Common Stock, par value $0.001 per share, as its SCHEDULE 13D/A filed Jun 9, 2026 says.
Directors and officers
16
report now, of 43 people on the record since 2011. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Eli Casdin
SCHEDULE 13D/A · filed Jun 9, 2026 · Common Stock, par value $0.001 per share · 24.2% in Nov 28, 2025
Viking Global Investors LP
SCHEDULE 13D · filed Jun 12, 2026 · Common Stock, par value $0.001 per share · 15% in May 15, 2026
Mak Capital One LLC
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, $0.001 par value per share
MAK Capital Fund LP
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, $0.001 par value per share · 5.19% in Jan 7, 2026
Long Focus Capital Management, LLC
SCHEDULE 13G · filed Aug 14, 2026 · Common Stock
Blackrock, Inc.
SCHEDULE 13G/A · filed Jul 30, 2026 · Common Stock · reported falling below 5%
What LAB reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Casdin Partners Master Fund, L.p
An entity · legal entity · owns, named in the 10-K filed Mar 16, 2026
Casdin Private Growth Equity Fund, L.p
An entity · legal entity · owns, named in the 10-K filed Mar 16, 2026
Standard BioTools
A company bought · acquisition · owns, named in the 10-K filed Mar 16, 2026
14 subsidiaries in 14 countries, from the list filed with the 10-K filed Mar 16, 2026.
Insider tradesForm 4
0sales
16purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$14.5Mbought, in dollars
Open-market trades on Form 4 from Nov 5, 2025 to Nov 5, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 5, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 63 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Casdin Partners Gp, LLC | director | 0 | $0 | 0 | 6 | $11.4M |
| Casdin Eli | director | 0 | $0 | 0 | 3 | $1.4M |
| Casdin Partners Master Fund, L.P. | director | 0 | $0 | 0 | 3 | $1.1M |
| Casdin Private Growth Equity Fund Gp, LLC | director | 0 | $0 | 0 | 3 | $500,000 |
| Carey Thomas D. | director | 0 | $0 | 0 | 1 | $0 |