GRAIL, Inc.

SecurityGRAL / GRAIL, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership27,927 shares
Latest Disclosed Value $ 1,443,197
Advisor Group Holdings, Inc. reports 4.58% decrease in ownership of GRAL / GRAIL, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 27,927 shares of GRAIL, Inc. (US:GRAL) valued at $1,443,267 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 29,266 shares of GRAIL, Inc.. This represents a change in shares of -4.58% during the quarter. The current value of the position is $1,707,178 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F GRAIL COM 384747101 27,927 -1,339 -4.58 1,443 -42.37 0.0012
2026-02-17 2025-12-31 13F GRAIL COM 384747101 29,266 -1,059 -3.49 2,505 133.36 0.0037
2025-11-14 2025-09-30 13F GRAIL COM 384747101 30,325 21,445 241.50 1,074 135.31 0.0015
2025-09-04 2025-06-30 13F/A-1 RAIL COM 384747101 8,880 2,240 33.73 456 169.82 0.0008
2025-08-13 2025-06-30 13F RAIL COM 384747101 3,284 -3,356 65 0.0001
2025-05-12 2025-03-31 13F GRAIL COM 384747101 6,640 -1,837 -21.67 170 11.92 0.0004
2025-06-06 2024-12-31 13F/A-1 GRAIL COM 384747101 8,477 1,955 29.98 151 69.66 0.0003
2025-02-07 2024-12-31 13F GRAIL COM 384747101 8,398 1,876 138 0.0004
2024-11-13 2024-09-30 13F GRAIL COM 384747101 6,522 4,921 307.37 90 270.83 0.0002
2024-08-13 2024-06-30 13F GRAIL COM 384747101 1,601 1,601 25 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.