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Security record · archived quarter

ADPT

Adaptive Biotechnologies Corporation · Healthcare · Biotechnology

24.41 -3.6% mkt cap $3.90B quote delayed (FMP) · as of Oct 22 22:08 UTC · separate from filing data below

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
11Tracked holders
0Δ holders
46.91MShares held
$348.49MReported value
+2New positions
−2Exits
Falling Conviction score 31/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth 0.0% · share flow -11.5% · net new positions 0.0% · formula

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q3 2026 1 -1 18.90K $493,205 n/a −2
Q2 2026 106 0 115.12M $2.47B +6 −7
Q1 2026 110 +7 111.61M $1.55B +11 −4
Q4 2025 102 0 114.72M $1.86B +1 −1
Q3 2025 21 +2 74.70M $1.12B +2 n/a
Q2 2025 16 +2 70.34M $819.50M +2 n/a
Q1 2025 11 0 46.91M $348.49M +2 −2
Q4 2024 11 -1 53.01M $317.80M n/a −1
Q3 2024 11 +2 55.08M $282.02M +2 n/a
Q2 2024 9 n/a 54.39M $196.88M n/a n/a
Holder count
Who holds it · Q1 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 Viking Global Investors ✦ 29.99M 0.0% $222.85M 0.7% Held 4 SEC ↗
2 ARK Investment Management ✦ 7.73M -17.9% $57.45M 0.6% ▼ Trim 4 SEC ↗
3 Millennium Management ✦ 3.00M -52.4% $22.26M 0.0% ▼ Trim 4 SEC ↗
4 Geode Capital Management ✦ (passive) 2.78M +3.6% $20.67M 0.0% ▲ Add 4 SEC ↗ ×2
5 State Street Global Advisors ✦ (passive) 2.69M -1.5% $19.98M 0.0% ▼ Trim 2 SEC ↗
6 AQR Capital Management ✦ 310.27K +45.8% $2.26M 0.0% ▲ Add 4 SEC ↗ ×5
7 Citadel Advisors ✦ 144.34K -36.4% $1.07M 0.0% ▼ Trim 4 SEC ↗
8 Renaissance Technologies ✦ 105.89K -53.9% $786,726 0.0% ▼ Trim 4 SEC ↗
9 T. Rowe Price ✦ 99.46K +5.9% $740,000 0.0% ▲ Add 4 SEC ↗
10 Arrowstreet Capital ✦ 45.74K New $339,856 0.0% New 1 SEC ↗
11 Gotham Asset Management ✦ 10.69K New $79,449 0.0% New 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.

New buyers

Arrowstreet Capital $339,856 0.0%
Gotham Asset Management $79,449 0.0%

Exited

Point72 Asset Management $5.62M was 0.0%
Two Sigma Investments $1.10M was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 295 holders, 151.59M shares, $2.01B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Oct 21 RUBINSTEIN JULIE

Officer · 5.88K sh · $150,403

Oct 21 RUBINSTEIN JULIE

Officer · 6.00K sh · $151,475

Oct 20 RUBINSTEIN JULIE

Officer · 100 sh · $2,485

Oct 20 RUBINSTEIN JULIE

Officer · 11.78K sh · $288,988

Oct 19 RUBINSTEIN JULIE

Officer · 11.88K sh · $285,738

Oct 16 RUBINSTEIN JULIE

Officer · 11.58K sh · $280,376

Oct 16 RUBINSTEIN JULIE

Officer · 300 sh · $7,635

Oct 15 RUBINSTEIN JULIE

Officer · 11.88K sh · $304,272

Oct 14 RUBINSTEIN JULIE

Officer · 5.10K sh · $131,682

Oct 14 RUBINSTEIN JULIE

Officer · 6.78K sh · $173,390

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2025 · Methodology · Get this via the API