Companies / Adaptive Biotechnologies Corp

Adaptive Biotechnologies Corp

Nasdaq: ADPTCIK 1478320SEATTLE, WAadaptivebiotech.com ↗

Financials · FY2025

Revenue$276.98M
Net income$-59.50M
Total debt$0
Cash$169.87M
Diluted EPS$-0.39
Shares outstanding159.6M

Ownership

159.6M shares outstanding · as of Jul 31, 2026
3.3%Insiders
Ownership
Insiders3.31%5,284,951
10%+ / strategic7.51%11,992,448
Institutions86.16%137,511,742
Public float3.01%4,806,701

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 11

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Insider% of sharesShares
Robins Chad MCEOCEO and Chairman · Director
1.44%2,301,113
Robins Harlan SChief Scientific Officer
0.95%1,522,058
Rubinstein JuliePresident and COO
0.29%455,878
Bobulsky SusanChief Commercial Officer, MRD
0.27%427,775
Lo FrancisFormerChief People Officer
0.18%291,374
Benzeno SharonFormerChief Commercial Ofc Imm Med
0.17%272,751
Piskel KyleChief Financial Officer
0.16%259,840
Neupert Peter MDirector
0.15%240,315
Owen Katey EinterzFormerDirector
0.06%88,254
Hershberg RobertDirector
0.04%62,347

Institutional holders 295

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HolderValue% of shares
Viking Global Investors LP$416.31M18.79%
BlackRock, Inc.$324.73M9.49%
Vanguard Group Inc$183.22M7.07%
Westfield Capital Management Company, L.P.$75.46M3.41%
State Street Corporation$74.18M2.17%
Geode Capital Management, LLC$50.48M2.28%
Invesco Ltd.$50.47M1.95%
The Goldman Sachs Group, Inc.$47.13M1.82%
Driehaus Capital Management LLC$44.83M1.73%
Jennison Associates LLC$43.44M1.68%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Mar 2, 2026Robins Chad M
CEO
SellCommon Stock$4.57M-289K
-12.70%
1,987,330
1.25% of shares
medium
Mar 11, 2026Robins Harlan S
Executive
SellCommon Stock$4.34M-330K
-17.80%
1,522,058
0.95% of shares
medium
Mar 11, 2026Robins Chad M
CEO
SellCommon Stock$4.34M-330K
-12.53%
2,301,113
1.44% of shares
medium
Feb 27, 2026Robins Chad M
CEO
SellCommon Stock$2.92M-183K
-7.44%
2,276,354
1.43% of shares
medium
Feb 2, 2026Robins Chad M
CEO
SellCommon Stock$2.30M-125K
-4.84%
2,459,245
1.54% of shares
medium
Jan 5, 2026Robins Chad M
CEO
SellCommon Stock$1.95M-125K
-4.61%
2,584,243
1.62% of shares
medium
Mar 11, 2026Robins Harlan S
Executive
SellCommon Stock$1.85M-141K
-7.06%
1,851,658
1.16% of shares
medium
Mar 11, 2026Robins Chad M
CEO
SellCommon Stock$1.85M-141K
-5.07%
2,630,713
1.65% of shares
medium

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
BlackRock, Inc.Passive13G/A—11,992,448—
Viking Global Investors LPPassive13G/A———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
ADPT——00650F109—