Location
Cambridge, MA
Holdings as of
12/31/2025
Date filed
2/13/2026
Form type
13F-HR
Num holdings
8
Total value ($000)
$865,155
Net value change ($000)
+112,518 (14.9%)
New positions
1
Sold out positions
2
Turnover %
1.5%
Sector allocation + QoQ delta (equities-only)
Prev filing: 11/13/2025 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q3 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
KYMR 85,445 30.8%
DYN 63,092 54.6%
SION 16,906 15.9%
DAWN 14,432 31.8%
GBIO 4,703 NEW
QTTB 2,804 67.7%
Top Reduces (Value $000, Stocks/ETFs)
KRRO -45,349 -83.3%
IRON -21,367 -15.1%
GBIO -5,067 -100.0%
IMA -3,079 -100.0%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type