Adaptive Biotechnologies Corporation
US ˙ NasdaqGS ˙ US00650F1093

SecurityADPT / Adaptive Biotechnologies Corporation
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership135,994 shares
Latest Disclosed Value $ 1,887,477
Advisor Group Holdings, Inc. reports 9.39% increase in ownership of ADPT / Adaptive Biotechnologies Corporation

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 135,994 shares of Adaptive Biotechnologies Corporation (US:ADPT) valued at $1,887,597 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 124,318 shares of Adaptive Biotechnologies Corporation. This represents a change in shares of 9.39% during the quarter. The current value of the position is $2,174,544 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 ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 135,994 11,676 9.39 1,887 -6.49 0.0016
2026-02-17 2025-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 124,318 9,898 8.65 2,019 33.82 0.0029
2025-11-14 2025-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 114,420 18,927 19.82 1,509 35.61 0.0021
2025-09-04 2025-06-30 13F/A-1 ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 95,493 25,579 36.59 1,112 114.26 0.0020
2025-08-13 2025-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 60,169 -9,745 362 0.0004
2025-05-12 2025-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 69,914 9,924 16.54 519 44.57 0.0012
2025-06-06 2024-12-31 13F/A-1 ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 59,990 2,537 4.42 360 22.11 0.0008
2025-02-07 2024-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 57,453 0 294 0.0008
2024-11-13 2024-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 57,453 450 0.79 294 42.72 0.0007
2024-08-13 2024-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 57,003 2,512 4.61 206 18.39 0.0005
2024-05-10 2024-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 54,491 -1,314 -2.35 175 -36.26 0.0004
2024-02-12 2023-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 55,805 -56,642 -50.37 273 -55.39 0.0005
2023-11-13 2023-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 112,447 94,105 513.06 613 397.56 0.0009
2023-08-21 2023-06-30 13F/A-1 ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 18,342 -33,412 -64.56 123 -73.03 0.0002
2023-08-10 2023-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 18,342 -33,412 123 0.0000
2023-05-12 2023-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 51,754 2,976 6.10 457 21.93 0.0009
2023-02-10 2022-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 48,778 -2,448 -4.78 374 2.47 0.0008
2022-11-14 2022-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 51,226 -3,912 -7.09 365 -18.16 0.0008
2022-08-10 2022-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 55,138 4,671 9.26 446 -36.19 0.0010
2022-05-04 2022-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 50,467 -2,826 -5.30 699 -53.24 0.0014
2022-02-03 2021-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 53,293 992 1.90 1,495 -15.82 0.0028
2021-11-05 2021-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 52,301 -36 -0.07 1,776 -16.93 0.0037
2021-08-02 2021-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 52,337 7,003 15.45 2,138 17.09 0.0046
2021-05-13 2021-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 45,334 2,726 6.40 1,826 -27.57 0.0044
2021-02-10 2020-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 42,608 -8,507 -16.64 2,521 1.82 0.0067
2020-11-12 2020-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 51,115 2,445 5.02 2,476 5.18 0.0074
2020-08-14 2020-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 48,670 -135,110 -73.52 2,354 -53.91 0.0079
2020-05-18 2020-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 183,780 183,780 5,107 0.0209
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.