Adaptive Biotechnologies Corporation (ADPT) Institutional Ownership & Insider Trading

298 institutions reported holding Adaptive Biotechnologies Corporation shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 156 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

ADPTAdaptive Biotechnologies CorporationFollow ADPT — free

Diagnostics & Research · Healthcare

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Market cap: 4.1B
P/E TTM: —
Dividend yield: —
52-week: —
Next earnings: 4 Nov, in 11 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

298 institutions held 97.6% of the shares. Across filers that reported both quarters, shares held changed +2.6%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	298	156	+2.6%	98	40	81	34
Mar 26	296	152	+1.0%	96	42	88	33
Dec 25	282	150	+0.9%	91	39	80	32
Sep 25	268	146	-1.6%	81	47	73	21
Jun 25	241	148	-4.5%	87	42	60	19
Mar 25	226	153	+6.2%	64	33	62	17
Dec 24	206	143	-0.3%	56	39	42	19
Sep 24	186	143	-4.6%	57	27	36	19

Adaptive Biotechnologies Corporation — questions

Who owns Adaptive Biotechnologies Corporation stock?: 298 institutions reported Adaptive Biotechnologies Corporation shares in 13F filings for the quarter ended 2026-06-30. The largest: VIKING GLOBAL INVESTORS LP (18.8%), BlackRock, Inc. (9.5%), VANGUARD CAPITAL MANAGEMENT LLC (4.0%).
Are Adaptive Biotechnologies Corporation insiders buying or selling?: 156 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Adaptive Biotechnologies Corporation's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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