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13D Management LLC

SEC CIK
0001600133
Latest filing
Aug 14, 2026

Holdings in Q4 2025

Holdings as of Dec 31, 2025, filed Feb 17, 2026. Long positions only; changes compare share counts with Q3 2025.

Institution overview
Positions
16
−2 vs. Q3 2025
Portfolio value
$84.0M
−$20.3M (−19.4%) vs. Q3 2025
Filed
Feb 17, 2026
SEC
Holdings of 13D Management LLC in Q4 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
TWLOTwilio IncCL A60,755$8.64M10.3%00.0%UnchangedHistory
MRCYMercury Systems IncCOM103,762$7.58M9.0%−33,250−24.3%ReducedHistory
VSATViasat IncCOM201,750$6.95M8.3%−65,250−24.4%ReducedHistory
ALVAutoliv IncCOM55,839$6.63M7.9%00.0%UnchangedHistory
PSOPearson PLCSPONSORED ADR458,338$6.44M7.7%00.0%UnchangedHistory
CRLCharles River Laboratories International, Inc.COM28,000$5.59M6.6%00.0%UnchangedHistory
EXELExelixis, Inc.COM120,335$5.27M6.3%00.0%UnchangedHistory
SWXSouthwest Gas Holdings, Inc.COM63,798$5.11M6.1%00.0%UnchangedHistory
BILLBILL Holdings, Inc.Stock90,000$4.91M5.8%00.0%UnchangedHistory
WKWorkiva IncCOM CL A52,000$4.49M5.3%+52,000NewHistory
WEXWEX Inc.COM29,350$4.37M5.2%+29,350NewHistory
TRIPTripAdvisor, Inc.COM300,000$4.37M5.2%00.0%UnchangedHistory
ETSYEtsy IncCOM71,836$3.98M4.7%−6,000−7.7%ReducedHistory
ITGRInteger Holdings CorpCOM47,000$3.69M4.4%+47,000NewHistory
LWLamb Weston Holdings, Inc.Stock76,001$3.18M3.8%00.0%UnchangedHistory
FUNSix Flags Entertainment CorporationCOM186,500$2.86M3.4%+186,500NewHistory

Sold out since Q3 2025 (6)

Positions held at the end of Q3 2025 that are gone from this filing.

Positions of 13D Management LLC sold out since Q3 2025
SecurityClassShares in Q3 2025Value in Q3 2025% of portfolio in Q3 2025History
QRVOQorvo, Inc.Stock88,740$8.08M7.7%History
JHGJanus Henderson Group Ltd.ORD SHS134,654$5.99M5.7%History
ABGAsbury Automotive Group IncCOM21,337$5.22M5.0%History
MTCHMatch Group, Inc.COM132,779$4.69M4.5%History
PFGCPerformance Food Group CoCOM43,000$4.47M4.3%History
YETIYETI Holdings, Inc.COM132,000$4.38M4.2%History