143 institutional investment managers reported LAB positions in their Form 13F filings for Q2 2026, holding 296,124,955 shares worth $244M in total. Casdin Capital, LLC reported the largest position.

Are funds buying or selling LAB?

In Q2 2026, 42 managers opened new LAB positions, 46 added, 35 trimmed and 51 sold out. Managers that filed in both quarters sold a net 935,589 shares.

How current is this LAB institutional ownership data?

It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Funds · LAB

Who owns LAB?

Institutional ownership of Standard BioTools Inc. from Form 13F, Q2 2026

143 institutional managers reported holding Standard BioTools Inc. (LAB) in Form 13F filings for Q2 2026, with 296,124,955 shares worth $244M. The largest reported holder was Casdin Capital, LLC. Managers that filed both quarters cut a net 935,589 shares (-0.3%). 42 opened new positions and 51 sold out.

Funds holding: 143
Value held: $244M
New / sold out: 42 / 51
Net shares, same filers: -0.3%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of LAB

Fund	Value	Share of 13F holdings	Shares	Move
Casdin Capital, LLC	$73.0M	30.0%	88,783,856	Unchanged
Viking Global Investors LP	$48.3M	19.8%	58,651,170	Unchanged
Mak Capital One LLC	$23.7M	9.7%	28,813,904	Added
Long Focus Capital Management, LLC	$19.3M	7.9%	23,500,000	Added
Vanguard Capital Management LLC	$10.1M	4.1%	12,252,998	Trimmed
BlackRock, Inc.	$6.8M	2.8%	8,254,443	Trimmed
Hollow Brook Wealth Management LLC	$4.5M	1.9%	5,503,381	Trimmed
Neuberger Berman Group LLC	$4.0M	1.7%	4,958,620	Added
Qube Research & Technologies Ltd	$4.0M	1.6%	4,820,463	Added
Royce & Associates LP	$3.7M	1.5%	4,525,333	Added
Geode Capital Management, LLC	$3.2M	1.3%	3,896,574	Trimmed
Tikvah Management LLC	$2.9M	1.2%	3,551,058	Unchanged
Millennium Management LLC	$2.9M	1.2%	3,512,665	Added
Morgan Stanley	$2.3M	1.0%	2,831,668	Trimmed
D. E. Shaw & Co., Inc.	$2.3M	1.0%	2,818,026	Added
Jane Street Group, LLC	$2.1M	0.8%	2,514,299	New
Peapod Lane Capital LLC	$2.0M	0.8%	2,411,474	Added
Citadel Advisors LLC	$1.9M	0.8%	2,348,570	Added
Mink Brook Asset Management LLC	$1.8M	0.7%	2,190,973	New
Sone Capital Management, LLC	$1.8M	0.7%	2,133,631	Added
Arrowstreet Capital, Limited Partnership	$1.6M	0.7%	1,991,426	New
Vanguard Fiduciary Trust Co	$1.6M	0.6%	1,889,846	Trimmed
Charles Schwab Investment Management Inc	$1.4M	0.6%	1,759,038	Trimmed
Jacobs Levy Equity Management, Inc	$1.3M	0.6%	1,633,112	New
State Street Corp	$1.3M	0.5%	1,542,478	Trimmed

Share of 13F holdings is each fund's shares as a share of the 296,124,955 LAB shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

Long Focus Capital Management, LLC Added+$6.2M
Qube Research & Technologies Ltd Added+$3.4M
Mak Capital One LLC Added+$2.2M
D. E. Shaw & Co., Inc. Added+$2.2M
Jane Street Group, LLC New+$2.1M
Mink Brook Asset Management LLC New+$1.8M
Arrowstreet Capital, Limited Partnership New+$1.6M
Jacobs Levy Equity Management, Inc New+$1.3M
Royce & Associates LP Added+$1.3M
Millennium Management LLC Added+$1.2M

Biggest sellers in Q2 2026

BlackRock, Inc. Trimmed-$13.6M
State Street Corp Trimmed-$4.1M
Geode Capital Management, LLC Trimmed-$2.8M
Barclays PLC Trimmed-$2.1M
Slate Path Capital LP Sold out-$1.5M
Vanguard Portfolio Management LLC Trimmed-$1.4M
Northern Trust Corp Trimmed-$1.4M
Nuveen, LLC Sold out-$608K
Goldman Sachs Group Inc Trimmed-$598K
Bank of New York Mellon Corp Trimmed-$557K

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $33.0M and sold $34.5M; 46 added and 35 trimmed.

Schedule 13D and 13G filings on LAB

Owners of more than 5% must file within days, so these can be newer than the 13F data.

2026-06-12VIKING GLOBAL INVESTORS LP SCHEDULE 13D filed by Standard BioTools Inc.Schedule 13D

Questions about LAB ownership

Who owns LAB stock?: 143 institutional investment managers reported LAB positions in their Form 13F filings for Q2 2026, holding 296,124,955 shares worth $244M in total. Casdin Capital, LLC reported the largest position.
Are funds buying or selling LAB?: In Q2 2026, 42 managers opened new LAB positions, 46 added, 35 trimmed and 51 sold out. Managers that filed in both quarters sold a net 935,589 shares.
How current is this LAB institutional ownership data?: It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to LAB by CUSIP. Options are left out. LAB news and filings · LAB insider trades · Top funds