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13D Management LLC

SEC CIK
0001600133
Latest filing
Aug 14, 2026

Holdings in Q3 2025

Holdings as of Sep 30, 2025, filed Nov 14, 2025. Long positions only; changes compare share counts with Q2 2025.

Institution overview
Positions
18
−2 vs. Q2 2025
Portfolio value
$104.3M
−$5.31M (−4.8%) vs. Q2 2025
Filed
Nov 14, 2025
SEC
Holdings of 13D Management LLC in Q3 2025
SecurityClassSharesValue% of portfolioShare changeActionHistory
MRCYMercury Systems IncCOM137,012$10.6M10.2%00.0%UnchangedHistory
QRVOQorvo, Inc.Stock88,740$8.08M7.7%00.0%UnchangedHistory
VSATViasat IncCOM267,000$7.82M7.5%+267,000NewHistory
ALVAutoliv IncCOM55,839$6.90M6.6%00.0%UnchangedHistory
PSOPearson PLCSPONSORED ADR458,338$6.49M6.2%00.0%UnchangedHistory
TWLOTwilio IncCL A60,755$6.08M5.8%00.0%UnchangedHistory
JHGJanus Henderson Group Ltd.ORD SHS134,654$5.99M5.7%00.0%UnchangedHistory
ABGAsbury Automotive Group IncCOM21,337$5.22M5.0%−5,750−21.2%ReducedHistory
ETSYEtsy IncCOM77,836$5.17M5.0%00.0%UnchangedHistory
SWXSouthwest Gas Holdings, Inc.COM63,798$5.00M4.8%−33,000−34.1%ReducedHistory
EXELExelixis, Inc.COM120,335$4.97M4.8%−23,000−16.0%ReducedHistory
TRIPTripAdvisor, Inc.COM300,000$4.88M4.7%+300,000NewHistory
BILLBILL Holdings, Inc.Stock90,000$4.77M4.6%+90,000NewHistory
MTCHMatch Group, Inc.COM132,779$4.69M4.5%00.0%UnchangedHistory
PFGCPerformance Food Group CoCOM43,000$4.47M4.3%+43,000NewHistory
LWLamb Weston Holdings, Inc.Stock76,001$4.41M4.2%−4,581−5.7%ReducedHistory
CRLCharles River Laboratories International, Inc.COM28,000$4.38M4.2%00.0%UnchangedHistory
YETIYETI Holdings, Inc.COM132,000$4.38M4.2%−32,000−19.5%ReducedHistory

Sold out since Q2 2025 (6)

Positions held at the end of Q2 2025 that are gone from this filing.

Positions of 13D Management LLC sold out since Q2 2025
SecurityClassShares in Q2 2025Value in Q2 2025% of portfolio in Q2 2025History
APDAir Products & Chemicals, Inc.Stock23,900$6.74M6.1%History
RIOTRiot Platforms, Inc.COM453,272$5.12M4.7%History
KVUEKenvue Inc.Stock235,309$4.93M4.5%History
MIDDMIDDLEBY CorpCOM26,097$3.76M3.4%History
PENNPENN Entertainment, Inc.COM195,045$3.49M3.2%History
VSTSVestis CorpCOM SHS560,134$3.21M2.9%History