GRAIL, Inc.
GRAIL, Inc. (GRAL) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GRAL · as of Mar 31, 2025
Ownership Breakdown
323
Institutional Holders
▼ 12 vs Q4
$656.88M
Total Inst. Value
▲ $179.27M vs Q4
42.92M
Shares Outstanding
freeFloat 91.54%
24.78M
13F Shares Held
▼ 1.94M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GRAL largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
CRCM LP services-medical laboratories | 3.64M | 10.62% | 10.62% | $93.09B | May 14, 2025 | — held |
PRIMECAP MANAGEMENT CO/CA/ services-medical laboratories | 2.05M | 5.98% | 5.98% | $52.40B | May 9, 2025 | ▼ 27.8K |
SESSA CAPITAL IM, L.P. services-medical laboratories | 1.92M | 5.59% | 5.59% | $48.99B | May 15, 2025 | ▼ 1.08M |
BAKER BROS. ADVISORS LP services-medical laboratories | 1.63M | 4.75% | 4.75% | $41.63B | May 15, 2025 | — held |
VANGUARD GROUP INC services-medical laboratories | 1.50M | 4.37% | 4.37% | $38.30B | May 9, 2025 | ▲ 48.6K |
AQR CAPITAL MANAGEMENT LLC services-medical laboratories | 1.34M | 3.90% | 3.90% | $33.99B | May 15, 2025 | ▲ 506.4K |
BLACKROCK, INC. services-medical laboratories | 1.32M | 3.86% | 3.86% | $33.82B | May 2, 2025 | ▼ 81.7K |
STATE STREET CORP services-medical laboratories | 1.27M | 3.69% | 3.69% | $32.38B | May 15, 2025 | ▲ 131.3K |
ARBITER PARTNERS CAPITAL MANAGEMENT LLC services-medical laboratories | 1.03M | 2.99% | 2.99% | $26.18B | May 13, 2025 | ▲ 194.4K |
ONE FIN CAPITAL MANAGEMENT LP services-medical laboratories | 750.0K | 2.19% | 2.19% | $19.16B | May 15, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
26
Increased
+2.20M shares7
New Positions
first time holders14
Decreased
−3.29M shares0
Sold Out
fully exitedNet shares change (top 50)
1.08M
+2.20M / −3.29M
Net new holders
+19
7 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GRAL insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
5
Buy transactions
4
Sell transactions
1.25
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Partridge Andrew John Chief Growth Officer | Jun 4, 2026 | Sale | 1,491 | $61.08 | $91.1K | 163.7K | Form 4 ↗ |
Ofman Joshua J. Chief Executive Officer | Jun 3, 2026 | Award | 3,154 | $61.13 | $192.8K | 402.3K | Form 4 ↗ |
Ofman Joshua J. Chief Executive Officer | Jun 1, 2026 | Award | 27,901 | $64.40 | $1.80M | 399.1K | Form 4 ↗ |
MIZELL STEVEN director | Apr 15, 2026 | Award | 396 | $49.79 | $19.7K | 37.1K | Form 4 ↗ |
CHASE WILLIAM J director | Apr 15, 2026 | Award | 408 | $49.79 | $20.3K | 37.2K | Form 4 ↗ |
SUMME GREGORY L director | Apr 15, 2026 | Award | 631 | $49.79 | $31.4K | 39.8K | Form 4 ↗ |
Freidin Aaron Chief Financial Officer | Apr 8, 2026 | Sale | 45,806 | $49.92 | $2.29M | 260.7K | Form 4 ↗ |
RAGUSA ROBERT P Chief Executive Officer | Apr 8, 2026 | Sale | 123,502 | $49.92 | $6.16M | 518.6K | Form 4 ↗ |
Ofman Joshua J. President | Apr 8, 2026 | Sale | 61,665 | $49.92 | $3.08M | 371.2K | Form 4 ↗ |
Freidin Aaron Chief Financial Officer | Mar 5, 2026 | Sale | 655 | $53.01 | $34.7K | 309.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
GRAIL, Inc. (GRAL) is primarily owned by institutional investors, who hold approximately 57.8% of total shares outstanding. Company insiders own approximately 8.46%, while retail and public investors account for the remaining 33.79%.
The largest institutional shareholder of GRAIL, Inc. is CRCM LP, holding approximately 3.64 million shares — equal to 10.62% of outstanding shares — as of March 31, 2025.
A total of 323 institutional investors currently hold GRAL stock, with a combined institutional value of approximately $656,879,716 as of the most recent 13F filing period.
Frequently asked questions
GRAL ownershipGRAIL, Inc. (GRAL) is primarily owned by institutional investors, who hold approximately 57.8% of shares. The largest shareholder is CRCM LP with a 10.62% stake. Company insiders hold 8.46%. Data sourced from SEC Form 13F as of March 31, 2025.