Labcorp: which funds bought and sold

Institutions that bought and sold Labcorp shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 452 institutions that filed 13F reports for both quarters added to or opened positions in Labcorp, and 462 cut or closed them. Together they added a net 480K shares, +0.6% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 757K shares (+3.7%); index fund managers were net buyers of 34K shares (+0.1%). 95 opened a new position and 72 sold out entirely.

Bought, Q2 2026 452 institutions, 95 of them new holders Sold, Q2 2026 462 institutions, 72 of them sold out

Net change, all compared +480K shares (+0.6%)

Net change, active managers +757K shares (+3.7%), 38 bought, 33 sold

Buyers versus sellers

institutions compared, 1,101

452 bought 187 462 sold

Active managers and hedge funds 38 bought · 33 sold · +757K

Index fund managers 5 bought · 7 sold · +34K

Other institutions 409 bought · 422 sold · −311K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Boston Partners Active manager	+683K +28.8%	3.1M	$854M
FMR LLC Active manager	+616K +47.8%	1.9M	$533M
Amundi	+322K +117.6%	597K	$167M
Victory Capital Management Inc Active manager	+210K +4.5%	4.8M	$1.4B
Earnest Partners LLC Active manager	+163K +52.2%	477K	$133M
Blackrock, Inc. Index funds	+129K +2.0%	6.6M	$1.8B
Squarepoint Ops LLC Hedge fund	+118K +84.4%	258K	$72.4M
Morgan Stanley	+111K +7.4%	1.6M	$451M
Woodline Partners LP Hedge fund	+110K +24.7%	557K	$156M
Millennium Management LLC Hedge fund	+103K +83.1%	228K	$63.9M
Bessemer Group Inc	+97K +16.7%	676K	$189M
Marshall Wace, LLP Hedge fund	+93K +2379.3%	97K	$27.1M
Bank Of America Corp	+87K +12.1%	812K	$227M
River Road Asset Management, LLC Active manager	+84K +16.7%	589K	$165M
Assenagon Asset Management S.A.	+82K +145.5%	139K	$38.8M
Qube Research & Technologies Ltd Hedge fund	+70K New position	70K	$19.7M
New York State Common Retirement Fund	+69K +153.4%	115K	$32.1M
Everett Harris & Co	+69K +122.9%	125K	$34.9M
Arrowstreet Capital, Limited Partnership Hedge fund	+68K New position	68K	$19M
Russell Investments Group, Ltd.	+45K +46.9%	142K	$39.7M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Boston Partners Active manager	+683K +28.8%	3.1M	$854M
FMR LLC Active manager	+616K +47.8%	1.9M	$533M
Victory Capital Management Inc Active manager	+210K +4.5%	4.8M	$1.4B
Earnest Partners LLC Active manager	+163K +52.2%	477K	$133M
Squarepoint Ops LLC Hedge fund	+118K +84.4%	258K	$72.4M
Woodline Partners LP Hedge fund	+110K +24.7%	557K	$156M
Millennium Management LLC Hedge fund	+103K +83.1%	228K	$63.9M
Marshall Wace, LLP Hedge fund	+93K +2379.3%	97K	$27.1M
River Road Asset Management, LLC Active manager	+84K +16.7%	589K	$165M
Qube Research & Technologies Ltd Hedge fund	+70K New position	70K	$19.7M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Alliancebernstein L.P. Active manager	−459K −52.3%	418K	$112M
Alyeska Investment Group, L.P. Hedge fund	−374K Sold out	0	—
Jpmorgan Chase & Co	−264K −17.2%	1.3M	$355M
Navera Investment Management Ltd.	−198K −20.2%	782K	$219M
Select Equity Group, L.P. Active manager	−193K −8.9%	2.0M	$555M
Diamond Hill Capital Management, LLC (Investment Advisor) Active manager	−163K −21.4%	601K	$168M
National Pension Service	−146K −77.2%	43K	$12.1M
Nordea Investment Management AB	−129K −12.4%	916K	$255M
Point72 Asset Management, L.P. Hedge fund	−122K −47.0%	137K	$38.5M
Northern Trust Corp Index funds	−114K −11.5%	883K	$247M
Wellington Management Group LLP Active manager	−104K −10.8%	856K	$240M
Gotham Asset Management, LLC Hedge fund	−91K −50.2%	91K	$25.4M
Strs Ohio	−84K −97.4%	2,223	$622,440
Zurich Insurance Group Ltd	−81K Sold out	0	—
Ameriprise Financial Inc	−81K −43.9%	104K	$29.1M
Invesco Ltd.	−79K −6.0%	1.2M	$347M
Adage Capital Partners Gp, L.L.C. Hedge fund	−74K −70.2%	32K	$8.8M
Lazard Asset Management LLC Active manager	−68K −17.4%	325K	$90.9M
Cornerstone Advisors, LLC	−64K Sold out	0	—
Lord, Abbett & Co. LLC	−55K −9.4%	531K	$149M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Alliancebernstein L.P. Active manager	−459K −52.3%	418K	$112M
Alyeska Investment Group, L.P. Hedge fund	−374K Sold out	0	—
Select Equity Group, L.P. Active manager	−193K −8.9%	2.0M	$555M
Diamond Hill Capital Management, LLC (Investment Advisor) Active manager	−163K −21.4%	601K	$168M
Point72 Asset Management, L.P. Hedge fund	−122K −47.0%	137K	$38.5M
Wellington Management Group LLP Active manager	−104K −10.8%	856K	$240M
Gotham Asset Management, LLC Hedge fund	−91K −50.2%	91K	$25.4M
Adage Capital Partners Gp, L.L.C. Hedge fund	−74K −70.2%	32K	$8.8M
Lazard Asset Management LLC Active manager	−68K −17.4%	325K	$90.9M
Citadel Advisors LLC Hedge fund	−36K −50.4%	35K	$9.9M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Qube Research & Technologies LtdHedge fund	70K	$19.7M
Arrowstreet Capital, Limited PartnershipHedge fund	68K	$19M
D. E. Shaw & Co., Inc.Hedge fund	40K	$11.2M
Hamilton Point Investment Advisors, LLC	18K	$5M
Capital Fund Management S.A.Hedge fund	17K	$4.8M
Elo Mutual Pension Insurance Co	14K	$4M
AGF Management Ltd	12K	$3.3M
Stance Capital LLC	11K	$3.1M
Exoduspoint Capital Management, LPHedge fund	11K	$3.1M
Tritonpoint Partners, LLC	10K	$2.9M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Alyeska Investment Group, L.P.Hedge fund	374K	$99.7M
Zurich Insurance Group Ltd	81K	$21.7M
Cornerstone Advisors, LLC	64K	$17.1M
Cobalt Capital Management, Inc.	40K	$10.7M
Taproot Management LP	11K	$3M
Unison Advisors LLC	11K	$3M
Landscape Capital Management, L.L.C.	6,513	$1.7M
Havemeyer Place LP	6,191	$1.7M
Ag2R La Mondiale Gestion D'Actifs	5,366	$1.4M
Two Sigma Securities, LLC	4,934	$1.3M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 1,042
Ten largest holders: 45.0%
Index fund managers: 30.1%
Active managers and hedge funds: 26.7%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	38	33	12	6	+757K	+3.7%
Index fund managers	5	7	0	0	+34K	+0.1%
Other institutions	409	422	83	66	−311K	−0.9%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Labcorp.

Only managers that filed a holdings report for both quarters are compared (1,101 here). 28 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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