Grail, Inc.: which funds bought and sold

Institutions that bought and sold Grail 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, 176 institutions that filed 13F reports for both quarters added to or opened positions in Grail, and 147 cut or closed them. Together they added a net 4.1M shares, +11.6% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 755K shares (+4.8%); index fund managers were net buyers of 1.6M shares (+18.8%). 58 opened a new position and 49 sold out entirely.

Bought, Q2 2026 176 institutions, 58 of them new holders Sold, Q2 2026 147 institutions, 49 of them sold out

Net change, all compared +4.1M shares (+11.6%)

Net change, active managers +755K shares (+4.8%), 22 bought, 22 sold

Buyers versus sellers

institutions compared, 413

176 bought 90 147 sold

Active managers and hedge funds 22 bought · 22 sold · +755K

Index fund managers 10 bought · 2 sold · +1.6M

Other institutions 144 bought · 123 sold · +1.7M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Arbiter Partners Capital Management LLC	+1.0M +99.9%	2.1M	$141M
Farallon Capital Management, L.L.C. Hedge fund	+908K +27.9%	4.2M	$284M
Blackrock, Inc. Index funds	+609K +20.5%	3.6M	$244M
State Street Corp Index funds	+494K +26.1%	2.4M	$163M
Kingdon Capital Management, L.L.C.	+340K New position	340K	$23.2M
Primecap Management Co Active manager	+336K +18.2%	2.2M	$149M
Sessa Capital Im, L.P. Hedge fund	+318K +18.5%	2.0M	$139M
Granahan Investment Management, LLC	+272K +547.2%	321K	$21.9M
Dimensional Fund Advisors LP	+271K +66.3%	680K	$46.4M
T. Rowe Price Investment Management, Inc. Active manager	+250K New position	250K	$17.1M
Casdin Capital, LLC Hedge fund	+250K +108.7%	480K	$32.8M
Goldman Sachs Group Inc	+166K +28.5%	748K	$51.1M
Geode Capital Management, LLC Index funds	+163K +19.7%	991K	$67.7M
Wells Fargo & Company	+156K +402.4%	194K	$13.3M
Vanguard Portfolio Management LLC Index funds	+143K +42.7%	478K	$32.6M
Vanguard Capital Management LLC Index funds	+114K +7.5%	1.6M	$112M
Deep Track Capital, LP Hedge fund	+112K +6.5%	1.8M	$125M
Nomura Asset Management International Inc.	+85K New position	85K	$5.8M
FMR LLC Active manager	+70K +125.1%	127K	$8.7M
Citigroup Inc	+69K +22.9%	371K	$25.3M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Farallon Capital Management, L.L.C. Hedge fund	+908K +27.9%	4.2M	$284M
Primecap Management Co Active manager	+336K +18.2%	2.2M	$149M
Sessa Capital Im, L.P. Hedge fund	+318K +18.5%	2.0M	$139M
T. Rowe Price Investment Management, Inc. Active manager	+250K New position	250K	$17.1M
Casdin Capital, LLC Hedge fund	+250K +108.7%	480K	$32.8M
Deep Track Capital, LP Hedge fund	+112K +6.5%	1.8M	$125M
FMR LLC Active manager	+70K +125.1%	127K	$8.7M
Verition Fund Management LLC Hedge fund	+49K New position	49K	$3.3M
D. E. Shaw & Co., Inc. Hedge fund	+34K +42.3%	116K	$7.9M
Clough Capital Partners L P Hedge fund	+23K New position	23K	$1.6M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Alyeska Investment Group, L.P. Hedge fund	−540K −83.7%	105K	$7.2M
RA Capital Management, L.P. Hedge fund	−428K Sold out	0	—
Carnegie Investment Counsel	−217K Sold out	0	—
Bank Of America Corp	−191K −20.9%	723K	$49.4M
Morgan Stanley	−170K −10.4%	1.5M	$99.8M
Susquehanna International Group, LLP	−150K −49.1%	155K	$10.6M
Braidwell LP Hedge fund	−143K Sold out	0	—
Capital Fund Management S.A. Hedge fund	−133K Sold out	0	—
Natixis	−129K −64.8%	70K	$4.8M
BNP Paribas Financial Markets	−118K −79.0%	31K	$2.1M
First Trust Advisors LP	−112K Sold out	0	—
AQR Capital Management LLC Hedge fund	−81K −27.6%	211K	$14.2M
Allianz Asset Management Gmbh	−80K −43.7%	103K	$6.3M
Marshall Wace, LLP Hedge fund	−54K −89.6%	6,202	$423,411
Victory Capital Management Inc Active manager	−54K −92.1%	4,581	$312,745
Aquatic Capital Management LLC	−50K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−46K −83.3%	9,200	$628,084
Man Group PLC Hedge fund	−43K −85.0%	7,659	$522,880
Two Sigma Investments, LP Hedge fund	−37K −57.6%	27K	$1.9M
Citadel Advisors LLC Hedge fund	−34K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Alyeska Investment Group, L.P. Hedge fund	−540K −83.7%	105K	$7.2M
RA Capital Management, L.P. Hedge fund	−428K Sold out	0	—
Braidwell LP Hedge fund	−143K Sold out	0	—
Capital Fund Management S.A. Hedge fund	−133K Sold out	0	—
AQR Capital Management LLC Hedge fund	−81K −27.6%	211K	$14.2M
Marshall Wace, LLP Hedge fund	−54K −89.6%	6,202	$423,411
Victory Capital Management Inc Active manager	−54K −92.1%	4,581	$312,745
Renaissance Technologies LLC Hedge fund	−46K −83.3%	9,200	$628,084
Man Group PLC Hedge fund	−43K −85.0%	7,659	$522,880
Two Sigma Investments, LP Hedge fund	−37K −57.6%	27K	$1.9M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Kingdon Capital Management, L.L.C.	340K	$23.2M
T. Rowe Price Investment Management, Inc.Active manager	250K	$17.1M
Nomura Asset Management International Inc.	85K	$5.8M
Verition Fund Management LLCHedge fund	49K	$3.3M
Nordea Investment Management AB	35K	$2.3M
Lido Advisors, LLC	33K	$2.3M
Clough Capital Partners L PHedge fund	23K	$1.6M
Massachusetts Financial Services CoActive manager	14K	$951,888
Moody National Bank Trust Division	13K	$907,991
Gsa Capital Partners LLP	10K	$710,000

Sold out

largest by value

Institution	Shares	Value March 31, 2026
RA Capital Management, L.P.Hedge fund	428K	$22.1M
Carnegie Investment Counsel	217K	$11.2M
Braidwell LPHedge fund	143K	$7.4M
Capital Fund Management S.A.Hedge fund	133K	$6.9M
First Trust Advisors LP	112K	$5.8M
Aquatic Capital Management LLC	50K	$2.6M
Citadel Advisors LLCHedge fund	34K	$1.8M
Tudor Investment Corp Et AlHedge fund	31K	$1.6M
Van Eck Associates Corp	28K	$1.4M
Millennium Management LLCHedge fund	25K	$1.3M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 371
Ten largest holders: 64.9%
Index fund managers: 25.8%
Active managers and hedge funds: 42.4%

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	22	22	6	8	+755K	+4.8%
Index fund managers	10	2	1	0	+1.6M	+18.8%
Other institutions	144	123	51	41	+1.7M	+15.9%

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 Grail.

Only managers that filed a holdings report for both quarters are compared (413 here). 16 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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