GRAIL INC (GRAL) Top Institutional Shareholders
GRAIL INC (GRAL) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $1.80B in GRAL holdings during the latest filing period.
Baker Bros. Advisors Lp is currently the largest disclosed institutional shareholder of GRAL tracked by InsiderSet, reporting ownership valued at approximately $208.20M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $239.50M, representing an estimated gain of +15.03% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 62% of the total disclosed GRAL value among the investors covered in this analysis. Major shareholders include Baker Bros. Advisors Lp, Farallon Capital Management Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in GRAIL INC (GRAL).
This page ranks the largest institutional GRAL shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
357
Total Reported Value
$1.80B
Largest Holder
Baker Bros. Advisors Lp
Largest Position
$208.20M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
89
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Baker Bros. Advisors Lp | 1.20% | 4,028,614 | $208,198,772 | $239,501,102 | +$31,302,330 | +15.03% | |
| Farallon Capital Management Llc | 1.10% | 3,253,684 | $168,150,389 | $193,431,514 | +$25,281,125 | +15.03% | |
| Blackrock, Inc. | 0.00% | 2,968,536 | $153,413,957 | $176,479,465 | +$23,065,508 | +15.03% | |
| State Street Corp | 0.00% | 1,891,893 | $97,773,030 | $112,473,039 | +$14,700,009 | +15.03% | |
| Primecap Management Co/Ca/ | 0.08% | 1,843,772 | $95,286,189 | $109,612,245 | +$14,326,056 | +15.03% | |
| Deep Track Capital, Lp | 1.84% | 1,722,797 | $89,034,149 | $102,420,282 | +$13,386,133 | +15.03% | |
| Sessa Capital Im, L.P. | 1.69% | 1,719,314 | $88,854,148 | $102,213,217 | +$13,359,069 | +15.03% | |
| Morgan Stanley | 0.01% | 1,632,195 | $84,351,938 | $97,033,993 | +$12,682,055 | +15.03% | |
| Vanguard Capital Management Llc | 0.00% | 1,527,105 | $78,920,786 | $90,786,392 | +$11,865,606 | +15.03% | |
| Arbiter Partners Capital Management | Paul Isaac | 36.27% | 1,034,597 | $53,467,973 | $61,506,792 | +$8,038,819 | +15.03% |
| Bank Of America Corp | 0.00% | 914,114 | $47,241,412 | $54,344,077 | +$7,102,665 | +15.03% | |
| Geode Capital Management, Llc | 0.00% | 827,942 | $42,794,349 | $49,221,152 | +$6,426,803 | +15.02% | |
| Jefferies Financial Group Inc. | 0.41% | 657,500 | $33,979,600 | $39,088,375 | +$5,108,775 | +15.03% | |
| Alyeska Investment Group, L.P. | 0.09% | 645,456 | $33,357,166 | $38,372,359 | +$5,015,193 | +15.03% | |
| Goldman Sachs Group Inc | 0.00% | 581,924 | $30,073,833 | $34,595,382 | +$4,521,549 | +15.03% | |
| Ra Capital Management, L.P. | 0.23% | 428,266 | $22,132,787 | $25,460,414 | +$3,327,627 | +15.03% | |
| Dimensional Fund Advisors Lp | 0.00% | 408,650 | $21,104,239 | $24,294,243 | +$3,190,004 | +15.12% | |
| Northern Trust Corp | 0.00% | 349,137 | $18,043,400 | $20,756,195 | +$2,712,795 | +15.03% | |
| Vanguard Portfolio Management Llc | 0.00% | 334,906 | $17,307,942 | $19,910,162 | +$2,602,220 | +15.03% | |
| Susquehanna International Group, Llp | 0.02% | 304,808 | $15,752,477 | $18,120,836 | +$2,368,359 | +15.03% | |
| Citigroup Inc | 0.01% | 302,136 | $15,614,409 | $17,961,985 | +$2,347,576 | +15.03% | |
| Raymond James Financial Inc | 0.00% | 292,138 | $15,097,674 | $17,367,604 | +$2,269,930 | +15.03% | |
| Aqr Capital Management Llc | 0.01% | 292,004 | $14,600,204 | $17,359,638 | +$2,759,434 | +18.90% | |
| Charles Schwab Investment Management Inc | 0.00% | 269,953 | $13,951,171 | $16,048,706 | +$2,097,535 | +15.03% | |
| Casdin Capital, Llc | 0.90% | 230,000 | $11,886,400 | $13,673,500 | +$1,787,100 | +15.03% | |
| Slow Capital, Inc. | 1.53% | 228,256 | $11,796,271 | $13,569,819 | +$1,773,548 | +15.03% | |
| Aberdeen Group Plc | 0.02% | 217,428 | $11,236,679 | $12,926,095 | +$1,689,416 | +15.03% | |
| Carnegie Investment Counsel | 0.22% | 217,100 | $11,219,728 | $12,906,595 | +$1,686,867 | +15.03% | |
| Vanguard Fiduciary Trust Co | 0.00% | 201,229 | $10,399,515 | $11,963,064 | +$1,563,549 | +15.03% | |
| Natixis | 0.04% | 199,368 | $10,303,338 | $11,852,428 | +$1,549,090 | +15.03% | |
| Ubs Group Ag | 0.00% | 185,393 | $9,581,110 | $11,021,614 | +$1,440,504 | +15.03% | |
| Allianz Asset Management Gmbh | 0.01% | 183,075 | $9,461,316 | $10,883,809 | +$1,422,493 | +15.03% | |
| Gem Investment Advisors, Llc | 4.04% | 108,482 | $8,376,831 | $6,449,255 | -$1,927,576 | -23.01% | |
| Douglas Lane & Associates, Llc | 0.12% | 161,524 | $8,347,560 | $9,602,602 | +$1,255,042 | +15.03% | |
| Newtyn Management, Llc | 0.83% | 150,000 | $7,752,000 | $8,917,500 | +$1,165,500 | +15.03% | |
| Bnp Paribas Financial Markets | 0.01% | 148,775 | $7,688,692 | $8,844,674 | +$1,155,982 | +15.03% | |
| Franklin Resources Inc | 0.00% | 147,985 | $7,647,864 | $8,797,708 | +$1,149,844 | +15.03% | |
| Voleon Capital Management Lp | 0.16% | 144,955 | $7,491,274 | $8,617,575 | +$1,126,301 | +15.03% | |
| Braidwell Lp | 0.25% | 142,755 | $7,377,578 | $8,486,785 | +$1,109,207 | +15.03% | |
| Bank Of New York Mellon Corp | 0.00% | 133,914 | $6,920,644 | $7,961,187 | +$1,040,543 | +15.04% | |
| Capital Fund Management S.A. | 0.06% | 132,887 | $6,867,600 | $7,900,132 | +$1,032,532 | +15.03% | |
| Invesco Ltd. | 0.00% | 128,991 | $6,666,263 | $7,668,515 | +$1,002,252 | +15.03% | |
| 180 Wealth Advisors, Llc | 0.75% | 127,347 | $6,581,275 | $7,570,779 | +$989,504 | +15.04% | |
| First Trust Advisors Lp | 0.00% | 112,122 | $5,794,464 | $6,665,653 | +$871,189 | +15.03% | |
| Nuveen, Llc | 0.00% | 107,968 | $5,579,787 | $6,418,698 | +$838,911 | +15.03% | |
| Wim Investment Management Ltd | 1.63% | 106,400 | $5,498,752 | $6,325,480 | +$826,728 | +15.03% | |
| American Century Companies Inc | 0.00% | 90,563 | $4,680,296 | $5,383,970 | +$703,674 | +15.03% | |
| Legal & General Group Plc | 0.00% | 86,175 | $4,453,524 | $5,123,104 | +$669,580 | +15.03% | |
| D. E. Shaw & Co., Inc. | 0.00% | 81,606 | $4,217,398 | $4,851,477 | +$634,079 | +15.03% | |
| Swiss National Bank | 0.00% | 69,400 | $3,586,592 | $4,125,830 | +$539,238 | +15.03% |
Frequently asked questions about GRAL
Who owns the most GRAL stock?
The largest holders of GRAL are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for GRAIL INC (GRAL).
Is GRAL widely held by superinvestors?
Many widely followed stocks like GRAL appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly GRAL is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.