Adaptive Biotechnologies Corporation
US ˙ NasdaqGS ˙ US00650F1093

SecurityADPT / Adaptive Biotechnologies Corporation
InstitutionFox Run Management, L.l.c.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Fox Run Management, L.l.c. closes position in ADPT / Adaptive Biotechnologies Corporation

On February 11, 2026 - Fox Run Management, L.l.c. filed a 13F-HR form disclosing ownership of 0 shares of Adaptive Biotechnologies Corporation (US:ADPT) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 12, 2025 disclosing 39,983 shares of Adaptive Biotechnologies Corporation. The current value of the position is $0 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)
2026-02-11 2025-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 0 -100.00 0
2025-11-12 2025-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 39,983 19,788 97.98 598 154.47 0.0933
2025-08-06 2025-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 20,195 -1,370 -6.35 235 46.88 0.0392
2025-05-13 2025-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 21,565 1,631 8.18 160 34.45 0.0248
2025-02-11 2024-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 19,934 19,934 120 0.0217
2023-11-07 2023-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 0 -21,724 -100.00 0 -100.00
2023-08-11 2023-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 21,724 1,375 6.76 146 -18.99 0.0410
2023-05-12 2023-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 20,349 1,124 5.85 180 22.60 0.0585
2023-02-07 2022-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 19,225 19,225 147 0.0590
2022-08-12 2022-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 0 -14,491 -100.00 0 -100.00
2022-05-10 2022-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 14,491 14,491 201 0.1119
2022-02-09 2021-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 0 -8,912 -100.00 0 -100.00
2021-11-15 2021-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 8,912 8,912 303 0.1908
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.