ADPT

Adaptive Biotechnologies Corp

Biological Products, (No Diagnostic Substances)NasdaqAccelerated filer

Total Trades

101

Buys

Sells

Largest Trade

N/A

Insiders

Institutional Funds

222

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
GRIFFIN MICHELLE RENEE	Director	SELL	$500K+	48K	$15.30	Mar 6, 2026
GRIFFIN MICHELLE RENEE	Director	EXERCISE	$100K–$500K	48K	$3.99	Mar 6, 2026
RUBINSTEIN JULIE	President and COO	EXERCISE	$500K+	80K	$9.05	Mar 6, 2026
RUBINSTEIN JULIE	President and COO	SELL	$1M+	93K	$16.09	Mar 6, 2026
ROBINS HARLAN S	Chief Scientific O…	SELL	$100K–$500K	24K	$16.19	Mar 5, 2026
ROBINS CHAD M	CEO and Chairman	SELL	$1M+	525K	$15.85	Mar 4, 2026
PISKEL KYLE	CFO	SELL	$15K–$50K	2K	$18.46	Feb 7, 2026
PISKEL KYLE	CFO	EXERCISE	$15K–$50K	2K	$12.14	Feb 7, 2026
ROBINS HARLAN S	Chief Scientific O…	SELL	$500K+	43K	$18.68	Feb 5, 2026
ROBINS CHAD M	CEO and Chairman	SELL	$1M+	125K	$18.44	Feb 5, 2026
LO FRANCIS	Chief People Officer	EXERCISE	$500K+	80K	$7.71	Jan 15, 2026
LO FRANCIS	Chief People Officer	SELL	$1M+	80K	$17.73	Jan 15, 2026
PISKEL KYLE	CFO	EXERCISE	$50K–$100K	4K	$12.14	Jan 15, 2026
PISKEL KYLE	CFO	SELL	$50K–$100K	4K	$18.00	Jan 15, 2026
ROBINS HARLAN S	Chief Scientific O…	SELL	$100K–$500K	10K	$16.44	Jan 9, 2026
ROBINS CHAD M	CEO and Chairman	SELL	$1M+	125K	$15.59	Jan 8, 2026
LO FRANCIS	Chief People Officer	SELL	$50K–$100K	3K	$16.08	Jan 7, 2026
LO FRANCIS	Chief People Officer	EXERCISE	$1K–$15K	3K	$3.99	Jan 7, 2026
LO FRANCIS	Chief People Officer	SELL	$50K–$100K	4K	$17.50	Dec 29, 2025
LO FRANCIS	Chief People Officer	EXERCISE	$15K–$50K	4K	$7.18	Dec 29, 2025
LO FRANCIS	Chief People Officer	EXERCISE	$500K+	97K	$6.37	Dec 18, 2025
LO FRANCIS	Chief People Officer	SELL	$1M+	114K	$15.57	Dec 18, 2025
HERSHBERG ROBERT	Director	SELL	$100K–$500K	23K	$16.00	Dec 13, 2025
BENZENO SHARON	Chief Commercial O…	SELL	$100K–$500K	13K	$16.85	Dec 9, 2025
BENZENO SHARON	Chief Commercial O…	EXERCISE	$100K–$500K	13K	$8.24	Dec 9, 2025
ROBINS HARLAN S	Chief Scientific O…	SELL	$500K+	37K	$18.07	Dec 5, 2025
PISKEL KYLE	CFO	SELL	$1M+	163K	$19.50	Dec 2, 2025
PISKEL KYLE	CFO	EXERCISE	$1M+	110K	$11.38	Dec 2, 2025
ROBINS CHAD M	CEO and Chairman	SELL	$1M+	161K	$19.10	Dec 2, 2025
BENZENO SHARON	Chief Commercial O…	EXERCISE	$1M+	510K	$8.75	Nov 25, 2025
BENZENO SHARON	Chief Commercial O…	SELL	$1M+	606K	$16.73	Nov 25, 2025
PISKEL KYLE	CFO	SELL	$1K–$15K	238	$14.05	Nov 19, 2025
ROBINS HARLAN S	Chief Scientific O…	SELL	$100K–$500K	10K	$14.82	Nov 13, 2025
ROBINS CHAD M	CEO and Chairman	SELL	$1M+	89K	$14.73	Nov 13, 2025
PISKEL KYLE	CFO	SELL	$15K–$50K	2K	$8.89	May 19, 2025
PISKEL KYLE	CFO	GRANT	N/A	8K	—	May 19, 2025
ROBINS HARLAN S	Chief Scientific O…	SELL	$500K+	68K	$7.35	May 5, 2025
ROBINS HARLAN S	Chief Scientific O…	EXERCISE	$100K–$500K	68K	$6.32	May 5, 2025
ROBINS HARLAN S	Chief Scientific O…	SELL	$15K–$50K	2K	$9.00	Mar 26, 2025
ROBINS HARLAN S	Chief Scientific O…	EXERCISE	$1K–$15K	2K	$6.32	Mar 26, 2025
GRIFFIN MICHELLE RENEE	Director	SELL	$100K–$500K	36K	$7.19	Mar 17, 2025
HERSHBERG ROBERT	Director	SELL	$100K–$500K	53K	$7.59	Mar 12, 2025
NEUPERT PETER M	Director	EXERCISE	$100K–$500K	50K	$4.07	Mar 12, 2025
NEUPERT PETER M	Director	SELL	$50K–$100K	10K	$7.05	Mar 12, 2025
ROBINS CHAD M	CEO and Chairman	EXERCISE	$1M+	285K	$6.32	Feb 22, 2025
ROBINS CHAD M	CEO and Chairman	SELL	$1M+	285K	$8.45	Feb 22, 2025
PISKEL KYLE	CFO	SELL	$1K–$15K	248	$4.98	Nov 19, 2024
Taylor Stacy L	SVP and General Co…	SELL	$100K–$500K	27K	$4.50	Aug 23, 2024
PISKEL KYLE	Principal Accounti…	SELL	$1K–$15K	259	$4.13	Nov 20, 2023
SOOD NITIN	Chief Commercial Officer	SELL	$100K–$500K	16K	$6.62	Aug 8, 2023

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Institutional Ownership

13F filings as of Dec 31, 2025 · 222 funds holding

Fund	Shares	Value	Type
VIKING GLOBAL INVESTORS LP	30.0M	$1M+	SH
WESTFIELD CAPITAL MANAGEMENT CO LP	4.1M	$1M+	SH
STATE STREET CORP	3.2M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	3.1M	$1M+	SH
LORD, ABBETT & CO. LLC	3.0M	$1M+	SH
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	2.4M	$1M+	SH
ARK Investment Management LLC	2.1M	$1M+	SH
JENNISON ASSOCIATES LLC	2.1M	$1M+	SH
Sumitomo Mitsui Trust Group, Inc.	1.9M	$1M+	SH
Amova Asset Management Americas, Inc.	1.9M	$1M+	SH
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	1.9M	$1M+	SH
PBU - The Pension Fund of Early Childhood & Youth Educators	1.7M	$1M+	SH
PRINCIPAL FINANCIAL GROUP INC	1.5M	$1M+	SH
DIMENSIONAL FUND ADVISORS LP	1.2M	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1.2M	$1M+	SH
Aberdeen Group plc	1.0M	$1M+	SH
NEXT CENTURY GROWTH INVESTORS LLC	944K	$1M+	SH
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	917K	$1M+	SH
KENNEDY CAPITAL MANAGEMENT LLC	900K	$1M+	SH
ESSEX INVESTMENT MANAGEMENT CO LLC	624K	$1M+	SH