13D Management LLC

Q3 2025 13F-HR Holdings

Location
New York, NY
Holdings as of
9/30/2025
Date filed
11/14/2025
Form type
13F-HR
Num holdings
18
Total value ($000)
$104,306
Net value change ($000)
-5,308 (-4.8%)
New positions
4
Sold out positions
6
Turnover %
47.2%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/14/2025 Next filing: 2/17/2026 SEC filing

Snapshot: Change Analysis

Compared to Q2 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)
VSAT 7,823 NEW
TRIP 4,878 NEW
BILL 4,767 NEW
PFGC 4,474 NEW
MRCY 3,226 43.7%
ETSY 1,264 32.4%
JANUS HENDERSON GROUP PLC 763 14.6%
ALV 648 10.4%
MTCH 588 14.3%
QRVO 547 7.3%
Top Reduces (Value $000, Stocks/ETFs)
APD -6,741 -100.0%
RIOT -5,122 -100.0%
KVUE -4,925 -100.0%
MIDD -3,758 -100.0%
PENN -3,485 -100.0%
VSTS -3,210 -100.0%
SWX -2,203 -30.6%
TWLO -1,474 -19.5%
EXEL -1,347 -21.3%
ABG -1,245 -19.3%
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