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Livermore
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GRAIL, Inc.

GRAL
Exchange
Nasdaq
Industry
Services-Medical Laboratories
SEC CIK
0001699031

In the last 90 days, GRAIL, Inc. insiders filed 0 open-market purchases and 4 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $2.60B in total; no superinvestor holds it.

Holders of 5% or more of GRAL

Holders whose latest Schedule 13D or 13G filing reports 5% or more of GRAIL, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of GRAL
HolderLatest formStakeChangeFirst filedLatest filingFiling
Baker Bros. Advisors LP13G/A9.80%4.03M shares+4.50 ppfrom 5.30%Feb 17, 20262 filingsMay 15, 2026SEC
Farallon Capital Management, L.L.C.13G/A9.60%4.16M shares–Aug 13, 20261 filingAug 13, 2026SEC
BlackRock, Inc.13G/A7.90%3.38M shares+1.40 ppfrom 6.50%Jul 17, 20252 filingsJul 28, 2026SEC
Farallon Capital Partners, L.P.13G/A7.80%3.25M shares+1.90 ppfrom 5.90%Nov 13, 20254 filingsMay 11, 2026SEC
State Street Corp13G5.60%2.39M sharesNewAug 7, 20261 filingAug 7, 2026SEC
Primecap Management Co13G/A5.08%21.8M shares+0.36 ppfrom 4.72%Aug 14, 20253 filingsAug 6, 2026SEC
CRCM LP13G/A5.00%1.80M shares−0.11 ppfrom 5.11%Oct 3, 20252 filingsOct 6, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

19 Schedule 13D and 13G filings on GRAIL, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on GRAL
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 13, 20265:14 PM ETFarallon Capital Management, L.L.C.and 28 others13G/A9.60%4.16M shares–Jun 30, 2026SEC
Aug 7, 20269:44 AM ETState Street Corp13G5.60%2.39M sharesNewJun 30, 2026SEC
Aug 6, 20265:01 PM ETPrimecap Management Co13G/A5.08%21.8M shares+0.36 ppfrom 4.72%Jun 30, 2026SEC
Jul 28, 20264:44 PM ETBlackRock, Inc.13G/A7.90%3.38M shares+1.40 ppfrom 6.50%Jun 30, 2026SEC
May 15, 20264:17 PM ETBaker Bros. Advisors LPand 3 others13G/A9.80%4.03M shares+4.50 ppfrom 5.30%Mar 31, 2026SEC
May 11, 20268:52 AM ETFarallon Capital Partners, L.P.and 27 others13G/A7.80%3.25M shares+1.90 ppfrom 5.90%Mar 31, 2026SEC
Mar 27, 20269:31 AM ETVanguard Group Inc13G/A0.00%0 shares−5.28 ppfrom 5.28%Below 5%Mar 13, 2026SEC
Feb 17, 20264:49 PM ETIllumina, Inc.13G/A3.20%1.30M shares–Below 5%Dec 31, 2025SEC
Feb 17, 20264:26 PM ETBaker Bros. Advisors LPand 3 others13G5.30%2.09M sharesNewDec 31, 2025SEC
Feb 11, 202612:55 PM ETPrimecap Management Co13G/A4.72%1.84M shares−1.00 ppfrom 5.72%Below 5%Dec 31, 2025SEC
Feb 9, 20268:49 AM ETFarallon Capital Partners, L.P.and 30 others13G/A5.90%2.34M shares+0.40 ppfrom 5.50%Dec 31, 2025SEC
Nov 24, 20257:25 PM ETFarallon Capital Partners, L.P.and 29 others13G5.50%2.18M shares+0.60 ppfrom 4.90%Nov 17, 2025SEC
Nov 13, 20259:46 AM ETFarallon Capital Partners, L.P.and 29 others13G4.90%1.95M sharesNewBelow 5%Oct 21, 2025SEC
Oct 6, 20257:15 PM ETCRCM LPand 8 others13G/A5.00%1.80M shares−0.11 ppfrom 5.11%Oct 6, 2025SEC
Oct 3, 20257:05 PM ETCRCM LPand 8 others13G/A5.11%1.84M shares–Sep 30, 2025SEC
Aug 14, 20251:06 PM ETPrimecap Management Co13G/A5.72%2.06M shares–Jun 30, 2025SEC
Jul 29, 20251:33 PM ETVanguard Group Inc13G5.28%1.90M sharesNewJun 30, 2025SEC
Jul 17, 20258:12 PM ETBlackRock, Inc.13G6.50%2.33M sharesNewJun 30, 2025SEC
May 7, 20254:05 PM ETSessa Capital (Master), L.P.and 4 others13G/A4.27%1.51M shares–Below 5%Apr 30, 2025SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell GRAIL, Inc. shares.

No Form 144 notices for GRAIL, Inc. are on file.