13D Management LLC

Holdings as of 2026-06-30, filed 2026-08-14

This is history, not a current position. These holdings describe 2026-06-30, and the report became public 45 days later. The portfolio has changed since.

Aggregates

computed from the positions below
Positions reported
11
Value reported by manager
$71.3M
Sum of our stored positions
$71.3M
should match the line above
Disclosure lag
45 d
quarter end to filing
Top 5 concentration
56.8%
of the positions shown
New positions
0
vs previous quarter
Exited
0
vs previous quarter
Option positions
0
puts and calls

Positions

11 largest shown
IssuerClassValueSharesTypeCUSIP
VIASAT INCCOM$11.3M126,25092552V100
TWILIO INCCL A$8M39,00090138F102
MERCURY SYS INCCOM$7.4M60,462589378108
PEARSON PLCSPONSORED ADR$7.3M458,338705015105
AUTOLIV INCCOM$6.5M55,839052800109
CHARLES RIV LABS INTL INCCOM$5.9M25,800159864107
SYNOPSYS INCCOM$5.6M12,650871607107
EXELIXIS INCCOM$5.5M101,33530161Q104
ETSY INCCOM$5.4M71,83629786A106
INTEGER HLDGS CORPCOM$4.4M47,00045826H109
SIX FLAGS ENTERTAINMENT CORPCOM$4M186,50083001C108
Values are shown exactly as filed. Before 2023 managers reported in thousands of dollars and afterwards in whole dollars; the reporting unit is not always determinable from the document, so nothing is converted automatically.

Source: U.S. Securities and Exchange Commission, Form 13F · as of 2026-08-14