Adaptive Biotechnologies Corp SEC filings ADPT

Adaptive Biotechnologies Corp has 832 filings in SEC EDGAR's recent list, going back to Dec 28, 2009. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.

Adaptive Biotechnologies Corp SEC filings
Form Description Filed Period
10-Q Quarterly report Nov 4, 2026 Sep 30, 2026
8-K Current report
Results of operations
Nov 4, 2026 Nov 4, 2026
4 Insider transaction Nov 3, 2026 Oct 30, 2026
4 Insider transaction Oct 29, 2026 Oct 27, 2026
4 Insider transaction Oct 26, 2026 Oct 22, 2026
4 Insider transaction Oct 21, 2026 Oct 19, 2026
4 Insider transaction Oct 16, 2026 Oct 14, 2026
4 Insider transaction Oct 13, 2026 Oct 9, 2026
4 Insider transaction Oct 8, 2026 Oct 6, 2026
4 Insider transaction Oct 8, 2026 Oct 6, 2026
144 Notice of proposed sale Oct 6, 2026 —
4 Insider transaction Oct 5, 2026 Oct 1, 2026
4 Insider transaction Oct 5, 2026 Oct 1, 2026
144 Notice of proposed sale Oct 1, 2026 —
4 Insider transaction Sep 18, 2026 Sep 16, 2026
4 Insider transaction Sep 17, 2026 Sep 15, 2026
144 Notice of proposed sale Sep 16, 2026 —
144 Notice of proposed sale Sep 15, 2026 —
4 Insider transaction Sep 2, 2026 Aug 31, 2026
4 Insider transaction Aug 28, 2026 Aug 26, 2026
144 Notice of proposed sale Aug 26, 2026 —
144 Notice of proposed sale Aug 20, 2026 —
4 Insider transaction Aug 20, 2026 Aug 18, 2026
4 Insider transaction Aug 19, 2026 Aug 17, 2026
4 Insider transaction Aug 19, 2026 Aug 17, 2026
144 Notice of proposed sale Aug 19, 2026 —
144 Notice of proposed sale Aug 18, 2026 —
144 Notice of proposed sale Aug 18, 2026 —
144 Notice of proposed sale Aug 18, 2026 —
144 Notice of proposed sale Aug 17, 2026 —
144 Notice of proposed sale Aug 17, 2026 —
144 Notice of proposed sale Aug 17, 2026 —
4 Insider transaction Aug 12, 2026 Aug 10, 2026
144 Notice of proposed sale Aug 10, 2026 —
10-Q Quarterly report Aug 4, 2026 Jun 30, 2026
4 Insider transaction Aug 3, 2026 Jul 30, 2026
144 Notice of proposed sale Jul 30, 2026 —
8-K Current report
Results of operations, Officer or director change
Jul 29, 2026 Jul 24, 2026
4 Insider transaction Jul 23, 2026 Jul 21, 2026
144 Notice of proposed sale Jul 21, 2026 —
4 Insider transaction Jul 20, 2026 Jul 16, 2026
4 Insider transaction Jul 17, 2026 Jul 15, 2026
144 Notice of proposed sale Jul 16, 2026 —
4 Insider transaction Jul 7, 2026 Jul 2, 2026
4 Insider transaction Jul 6, 2026 Jul 1, 2026
4 Insider transaction Jul 6, 2026 Jul 1, 2026
144 Notice of proposed sale Jul 2, 2026 —
144 Notice of proposed sale Jul 1, 2026 —
144 Notice of proposed sale Jul 1, 2026 —
4 Insider transaction Jun 30, 2026 Jun 26, 2026
4 Insider transaction Jun 29, 2026 Jun 25, 2026
4 Insider transaction Jun 29, 2026 Jun 25, 2026
144 Notice of proposed sale Jun 29, 2026 —
144 Notice of proposed sale Jun 26, 2026 —
144 Notice of proposed sale Jun 25, 2026 —
144 Notice of proposed sale Jun 25, 2026 —
8-K Current report
Material agreement, Agreement ended, New debt, Unregistered share sale, Other events
Jun 22, 2026 Jun 15, 2026
4 Insider transaction Jun 17, 2026 Jun 15, 2026
144 Notice of proposed sale Jun 16, 2026 —
4 Insider transaction Jun 15, 2026 Jun 11, 2026
144 Notice of proposed sale Jun 15, 2026 —
8-K Current report
Other events
Jun 15, 2026 Jun 15, 2026
144 Notice of proposed sale Jun 11, 2026 —
8-K Current report
Shareholder vote results
Jun 9, 2026 Jun 5, 2026
4 Insider transaction Jun 8, 2026 Jun 4, 2026
4 Insider transaction Jun 8, 2026 Jun 4, 2026
144 Notice of proposed sale Jun 4, 2026 —
144 Notice of proposed sale Jun 4, 2026 —
4 Insider transaction May 20, 2026 May 18, 2026
144 Notice of proposed sale May 15, 2026 —
SCHEDULE 13G/A Amended ownership over 5% (passive) May 15, 2026 —
10-Q Quarterly report May 5, 2026 Mar 31, 2026
8-K Current report
Results of operations
May 5, 2026 May 5, 2026
4 Insider transaction Apr 29, 2026 Apr 27, 2026
4 Insider transaction Apr 24, 2026 Apr 22, 2026
ARS Annual report to shareholders Apr 24, 2026 Dec 31, 2025
DEFA14A Additional proxy material Apr 24, 2026 —
DEF 14A Proxy statement Apr 24, 2026 Jun 5, 2026
4 Insider transaction Apr 21, 2026 Apr 17, 2026
4 Insider transaction Apr 16, 2026 Apr 14, 2026
4 Insider transaction Apr 13, 2026 Apr 9, 2026
4 Insider transaction Apr 10, 2026 Apr 8, 2026
4 Insider transaction Apr 10, 2026 Apr 8, 2026
4 Insider transaction Apr 8, 2026 Apr 6, 2026
4 Insider transaction Apr 8, 2026 Apr 6, 2026
144 Notice of proposed sale Apr 8, 2026 —
144 Notice of proposed sale Apr 8, 2026 —
144 Notice of proposed sale Apr 8, 2026 —
144 Notice of proposed sale Apr 6, 2026 —
4 Insider transaction Apr 2, 2026 Apr 1, 2026
4 Insider transaction Mar 31, 2026 Mar 27, 2026
4 Insider transaction Mar 26, 2026 Mar 24, 2026
SCHEDULE 13G/A Amended ownership over 5% (passive) Mar 26, 2026 —
4 Insider transaction Mar 23, 2026 Mar 19, 2026
4 Insider transaction Mar 18, 2026 Mar 16, 2026
144 Notice of proposed sale Mar 16, 2026 —
144 Notice of proposed sale Mar 16, 2026 —
144 Notice of proposed sale Mar 16, 2026 —
144 Notice of proposed sale Mar 16, 2026 —
144 Notice of proposed sale Mar 16, 2026 —
144 Notice of proposed sale Mar 16, 2026 —
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
4 Insider transaction Mar 13, 2026 Mar 11, 2026
144 Notice of proposed sale Mar 11, 2026 —
144 Notice of proposed sale Mar 11, 2026 —
4 Insider transaction Mar 10, 2026 Mar 6, 2026
144 Notice of proposed sale Mar 10, 2026 —
4 Insider transaction Mar 9, 2026 Mar 5, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 6, 2026 Mar 4, 2026
4 Insider transaction Mar 5, 2026 Mar 3, 2026
4 Insider transaction Mar 5, 2026 Mar 3, 2026
4 Insider transaction Mar 4, 2026 Mar 2, 2026
4 Insider transaction Mar 3, 2026 Feb 27, 2026
144 Notice of proposed sale Mar 3, 2026 —
144 Notice of proposed sale Mar 3, 2026 —
144 Notice of proposed sale Mar 3, 2026 —
144 Notice of proposed sale Mar 3, 2026 —
144 Notice of proposed sale Mar 2, 2026 —
144 Notice of proposed sale Mar 2, 2026 —
S-8 Employee stock plan registration Feb 27, 2026 —
144 Notice of proposed sale Feb 27, 2026 —
10-K Annual report Feb 26, 2026 Dec 31, 2025
4 Insider transaction Feb 6, 2026 Feb 4, 2026
8-K Current report
Results of operations
Feb 5, 2026 Feb 5, 2026
4 Insider transaction Feb 4, 2026 Feb 2, 2026
4 Insider transaction Feb 4, 2026 Feb 2, 2026
144 Notice of proposed sale Feb 3, 2026 —
144 Notice of proposed sale Feb 2, 2026 —
144 Notice of proposed sale Feb 2, 2026 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Jan 21, 2026 —
4 Insider transaction Jan 14, 2026 Jan 12, 2026
4 Insider transaction Jan 14, 2026 Jan 12, 2026
144 Notice of proposed sale Jan 12, 2026 —
144 Notice of proposed sale Jan 12, 2026 —
8-K Current report
Results of operations, Regulation FD disclosure
Jan 12, 2026 Jan 12, 2026
4 Insider transaction Jan 8, 2026 Jan 6, 2026
4/A Primary document Jan 7, 2026 Dec 22, 2025
4 Insider transaction Jan 7, 2026 Jan 5, 2026
4 Insider transaction Jan 6, 2026 Jan 2, 2026
144 Notice of proposed sale Jan 6, 2026 —
144 Notice of proposed sale Jan 5, 2026 —
8-K Current report
Other events
Dec 30, 2025 Dec 30, 2025
4 Insider transaction Dec 29, 2025 Dec 22, 2025
4 Insider transaction Dec 17, 2025 Dec 15, 2025
144 Notice of proposed sale Dec 15, 2025 —
4 Insider transaction Dec 12, 2025 Dec 10, 2025
144 Notice of proposed sale Dec 10, 2025 —
4 Insider transaction Dec 8, 2025 Dec 4, 2025
4 Insider transaction Dec 5, 2025 Dec 3, 2025
144 Notice of proposed sale Dec 4, 2025 —
144 Notice of proposed sale Dec 4, 2025 —
144 Notice of proposed sale Dec 3, 2025 —
4 Insider transaction Dec 2, 2025 Nov 28, 2025
4 Insider transaction Dec 1, 2025 Nov 26, 2025
144 Notice of proposed sale Dec 1, 2025 —
144 Notice of proposed sale Nov 28, 2025 —
144 Notice of proposed sale Nov 26, 2025 —
4 Insider transaction Nov 24, 2025 Nov 20, 2025
144/A Filing Nov 24, 2025 —
144 Notice of proposed sale Nov 21, 2025 —
144 Notice of proposed sale Nov 20, 2025 —
144 Notice of proposed sale Nov 19, 2025 —
4 Insider transaction Nov 18, 2025 Nov 17, 2025
4 Insider transaction Nov 12, 2025 Nov 10, 2025
4 Insider transaction Nov 12, 2025 Nov 10, 2025
144 Notice of proposed sale Nov 12, 2025 —
144 Notice of proposed sale Nov 12, 2025 —
144 Notice of proposed sale Nov 10, 2025 —
144 Notice of proposed sale Nov 10, 2025 —
10-Q Quarterly report Nov 5, 2025 Sep 30, 2025
8-K Current report
Results of operations
Nov 5, 2025 Nov 5, 2025
8-K Current report
Agreement ended
Aug 18, 2025 Aug 13, 2025
10-Q Quarterly report Aug 5, 2025 Jun 30, 2025
8-K Current report
Results of operations
Aug 5, 2025 Aug 5, 2025
SCHEDULE 13G/A Amended ownership over 5% (passive) Jul 9, 2025 —
8-K Current report
Shareholder vote results
Jun 12, 2025 Jun 10, 2025
SCHEDULE 13G/A Amended ownership over 5% (passive) Jun 6, 2025 —
4/A Amended statement of changes in beneficial ownership of securities May 20, 2025 May 16, 2025
4 Insider transaction May 19, 2025 May 15, 2025
SCHEDULE 13G Ownership over 5% (passive) May 14, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) May 7, 2025 —
4 Insider transaction May 5, 2025 May 1, 2025
144 Notice of proposed sale May 1, 2025 —
10-Q Quarterly report May 1, 2025 Mar 31, 2025

Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Industry
Biological Products, (No Diagnostic Substances) (SIC 2836)
Listed as
ADPT (Nasdaq)
Fiscal year ends
December 31
Incorporated in
WA
Headquarters
Seattle, WA
SEC filer status
Large accelerated filer
SEC CIK
1478320
Former names
Adaptive TCR Corp (until Jun 2, 2011)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.