ADPT β€” ADAPTIVE BIOTECHNOLOGIES COR

Ownership history in Bayesian Capital Management, LP  Β·  4 quarters on record

This page tracks every 13F SEC filing in which Bayesian Capital Management, LP reported a position in ADAPTIVE BIOTECHNOLOGIES COR (ADPT). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.05% (2025 Q3)
πŸ“Š Avg. % of fund
0.03%
πŸ“… First filed
2022 Q2
πŸ“… Last filed
2025 Q3
⏱ Quarters held
4

Position Intelligence

Bayesian Capital Management, LP Γ— ADPT AI Analytics

πŸ“ˆ Bayesian Capital Management, LP outperformed the S&P 500 by +93.9% annually on this ADPT position. Timing score: 100% (3/3 decisions correct). Average cost basis: $7.44. Maximum drawdown during holding period: –38.3%.

πŸ“ˆ Position Alpha vs SPY
+93.9%
annualised excess return

πŸ”₯ Exceptional β€” beat the S&P 500 by 93.9% per year on this position.
3 quarters analyzed

⏱️ Timing Score
100%

🎯 Smart timing β€” consistently buying dips and trimming near peaks.
3 of 3 add/trim decisions correct

πŸ’° Entry Quality
$7.44
+101.1% vs current ($14.96)

Best entry: $5.45 (2023 Q3)  Β·  Worst: $8.09 (2022 Q2)

πŸ›‘οΈ Drawdown Resilience
–38.3%
max drawdown while held

πŸ’ͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.

πŸ’ͺ Fund Conviction
50%
buy-side decisions

2 adds Β· 2 trims. Bought during 1 of 1 down-price quarters. πŸ“ˆ More buys than sells across the holding period.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.05% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    ADPT price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 4 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 17,658 -1,581 -8.2% 0.05% $264K $14.96
2023 Q3 ADDED 19,239 +6,969 +56.8% 0.01% $105K $5.45
2023 Q1 REDUCED 12,270 -9,205 -42.9% 0.01% $108K $8.83
2022 Q2 INITIATED 21,475 β€” β€” 0.03% $174K $8.09

🏒 Other funds also holding ADPT

As of 2025 Q4 β€” sorted by position size

Blue Water Life Science Advisors, LP 3Y 17.99% Catalio Capital Management, LP 2.36% STEMPOINT CAPITAL LP 1.69% ESSEX INVESTMENT MANAGEMENT CO LLC 3Y 7Y 1.55% Aristotle Atlantic Partners, LLC 3Y 7Y 1.37% VIKING GLOBAL INVESTORS LP 3Y 7Y 1.29% Harvest Investment Services, LLC 3Y 7Y 1.09% NEXT CENTURY GROWTH INVESTORS LLC 3Y 7Y 1.06% Rhenman & Partners Asset Management AB 3Y 7Y 0.92% AFFINITY WEALTH MANAGEMENT LLC 3Y 7Y 0.73%
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