Adaptive Biotechnologies Corporation
US ˙ NasdaqGS ˙ US00650F1093

SecurityADPT / Adaptive Biotechnologies Corporation
InstitutionSignaturefd, Llc
Latest Disclosed Ownership4,145 shares
Latest Disclosed Value $ 57,533
Signaturefd, Llc reports 28.11% decrease in ownership of ADPT / Adaptive Biotechnologies Corporation

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 4,145 shares of Adaptive Biotechnologies Corporation (US:ADPT) valued at $57,533 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 5,766 shares of Adaptive Biotechnologies Corporation. This represents a change in shares of -28.11% during the quarter. The current value of the position is $70,050 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)
2026-04-07 2026-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 4,145 -1,621 -28.11 58 -38.71 0.0009
2026-01-20 2025-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 5,766 -3 -0.05 94 8.14 0.0014
2025-10-21 2025-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 5,769 1,176 25.60 86 62.26 0.0014
2025-07-16 2025-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 4,593 86 1.91 54 60.61 0.0009
2025-05-02 2025-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 4,507 0 0.00 33 22.22 0.0006
2025-02-10 2024-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 4,507 0 0.00 27 17.39 0.0005
2024-10-21 2024-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 4,507 388 9.42 23 64.29 0.0004
2024-07-29 2024-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 4,119 525 14.61 15 27.27 0.0003
2024-05-03 2024-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 3,594 8 0.22 12 -35.29 0.0002
2024-02-01 2023-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 3,586 514 16.73 18 6.25 0.0004
2023-11-03 2023-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 3,072 -118 -3.70 17 -23.81 0.0004
2023-08-01 2023-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 3,190 2,579 422.09 21 320.00 0.0005
2023-04-28 2023-03-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 611 -104 -14.55 5 0.00 0.0001
2023-01-30 2022-12-31 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 715 623 677.17 5 400.00 0.0002
2022-11-08 2022-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 92 92 1 0.0000
2020-11-03 2020-09-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 0 -45 -100.00 0 -100.00
2020-07-30 2020-06-30 13F ADAPTIVE BIOTECHNOLOGIES COR COM 00650F109 45 45 2 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.