AI summary pending
View Full Filing (SEC EDGAR)Adaptive Biotechnologies
$24.02-6.1%
+$439.2M
Net Activity
+9.59% total shares
Institutions Holding
303
Popularity Rank
#2106
Avg Weight
0.12%
Total Value
$3.6B
Market Cap
$3.6B
303 institutions currently hold ADPT, with 164 net buyers and 133 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
133
Net Buying Institutions
164
Top 5 by Value
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Across its top 20 institutional holders, ADPT's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 5/100, avg. turnover score 45/100).
ADPT ranks #2106 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
ADPT is a disclosed holding of Andreas Halvorsen (Viking Global Investors), one of the tracked superinvestors on AlphaSMO — it makes up 1.8% of that fund's own 13F portfolio.
ADPT is a top-conviction position for Blue Water Life Science Advisors, LP — at 13.7% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in ADPT belongs to Viking Global Investors LP, but the position matters far more to Blue Water Life Science Advisors, LP, who has 13.7% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Edge Wealth Management LLC has added to its ADPT position for two straight quarters, increasing it by $1.3M to reach $2.5M today.
ADPT is down 6.1% today, but institutions show net buying of $439.2M this quarter — a divergence between today's price move and the underlying institutional flow.
ADPT reported a net loss of $63.9M over the trailing twelve months.
+$886.6M
Total Buy Value
$361.0M
Total Sell Value
164
Net Buyers
133
Net Sellers
ADPT
Q2 2026
Top 5 Institutional Movers
ADPT does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
16
Filings (90d)
$74.75M
Total Est. Value
2.97M shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| SUSAN BOBULSKY | 2026-10-06 | $192K |
| JULIE RUBINSTEIN | 2026-10-01 | $10.98M |
| FRANCIS LO | 2026-09-16 | $3.79M |
| SUSAN BOBULSKY | 2026-09-15 | $30K |
| KATHERINE E OWEN | 2026-08-26 | $250K |
| Harlan Robins | 2026-08-20 | $10.23M |
| Harlan Robins | 2026-08-19 | $5.50M |
| Chad Robins | 2026-08-18 | $6.84M |
| Harlan Robins | 2026-08-18 | $6.41M |
| ROBERT M HERSHBERG | 2026-08-18 | $748K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
No Schedule 13D/13G filings for this ticker
1
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)00650F109
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
5,174
Total reported value
$671.0B
Held by 5174 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
5,106
Total reported value
$1.1T
Held by 5106 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,949
Total reported value
$485.2B
Held by 4949 institutions — one of the most-tracked stocks on AlphaSMO
Access ADPT's institutional ownership data programmatically:
REST API
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