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Livermore
Livermore
ZHEN

13D Management LLC

SEC CIK
0001600133
Latest filing
Aug 14, 2026

Holdings in Q1 2026

Holdings as of Mar 31, 2026, filed May 15, 2026. Long positions only; changes compare share counts with Q4 2025.

Institution overview
Positions
13
−3 vs. Q4 2025
Portfolio value
$64.5M
−$19.5M (−23.3%) vs. Q4 2025
Filed
May 15, 2026
SEC
Holdings of 13D Management LLC in Q1 2026
SecurityClassSharesValue% of portfolioShare changeActionHistory
TWLOTwilio IncCL A60,755$7.64M11.9%00.0%UnchangedHistory
VSATViasat IncCOM164,750$7.55M11.7%−37,000−18.3%ReducedHistory
ACHCAcadia Healthcare Company, Inc.COM294,000$6.88M10.7%+294,000NewHistory
PSOPearson PLCSPONSORED ADR458,338$6.02M9.3%00.0%UnchangedHistory
ALVAutoliv IncCOM55,839$5.87M9.1%00.0%UnchangedHistory
CRLCharles River Laboratories International, Inc.COM25,800$4.45M6.9%−2,200−7.9%ReducedHistory
MRCYMercury Systems IncCOM60,462$4.41M6.8%−43,300−41.7%ReducedHistory
EXELExelixis, Inc.COM101,335$4.35M6.7%−19,000−15.8%ReducedHistory
ITGRInteger Holdings CorpCOM47,000$4.14M6.4%00.0%UnchangedHistory
ETSYEtsy IncCOM71,836$3.59M5.6%00.0%UnchangedHistory
FUNSix Flags Entertainment CorporationCOM186,500$3.31M5.1%00.0%UnchangedHistory
TRIPTripAdvisor, Inc.COM300,000$3.20M5.0%00.0%UnchangedHistory
WKWorkiva IncCOM CL A52,000$3.10M4.8%00.0%UnchangedHistory

Sold out since Q4 2025 (4)

Positions held at the end of Q4 2025 that are gone from this filing.

Positions of 13D Management LLC sold out since Q4 2025
SecurityClassShares in Q4 2025Value in Q4 2025% of portfolio in Q4 2025History
SWXSouthwest Gas Holdings, Inc.COM63,798$5.11M6.1%History
BILLBILL Holdings, Inc.Stock90,000$4.91M5.8%History
WEXWEX Inc.COM29,350$4.37M5.2%History
LWLamb Weston Holdings, Inc.Stock76,001$3.18M3.8%History