Data as of Q4 2025 (Dec 31, 2025)

13D Management LLC

โ€ขCIK: 1600133โ€ขFiling: Q4 2025

**13D Management LLC** is a focused, actively managed fund with $84M in assets under management. The portfolio maintains concentrated exposure across 16 distinct positions, notably allocating $8.6M to TWLO and $7.6M to MRCY. Key holdings also include significant allocations to VSAT ($7.0M), ALV ($6.6M), and PSO ($6.4M). This structure suggests a conviction-driven approach targeting specific market opportunities within its selected sectors.

Total AUM
$84.0M
QoQ Performance
-19.4%
Positions
16
Top 10 Concentration
73.3%
Latest Filing
Q4 2025

Top Holdings Allocation

TWLO
MRCY
VSAT
ALV
PSO
CRL
EX9
SWX
TWLO10.3%
MRCY9.0%
VSAT8.3%
ALV7.9%
PSO7.7%
CRL6.6%
EX96.3%
SWX6.1%

๐Ÿ“ˆ Biggest Buys

WK
WORKIVA INC
NEW
5.3% of portfolio
WEX
WEX INC
NEW
5.2% of portfolio
ITGR
INTEGER HLDGS CORP
NEW
4.4% of portfolio
FUN
SIX FLAGS ENTERTAINMENT CORP
NEW
3.4% of portfolio

๐Ÿ“‰ Biggest Sells

MRCY
MERCURY SYS INC
-24.3%
9.0% of portfolio
VSAT
VIASAT INC
-24.4%
8.3% of portfolio
ETSY
ETSY INC
-7.7%
4.7% of portfolio

Sector Breakdown

Other100.0%

๐Ÿšช Exited Positionssold since Q3 2025

QRVO
QORVO INC
SOLD
$8.1M
JHG
JANUS HENDERSON GROUP PLC
SOLD
$6.0M
AWG
ASBURY AUTOMOTIVE GROUP INC
SOLD
$5.2M
MTCH
MATCH GROUP INC NEW
SOLD
$4.7M
PFGC
PERFORMANCE FOOD GROUP CO
SOLD
$4.5M
+1 more exited positions

Changes from Q3 2025

NEW4 new positions
โ†“3 decreased

Historical Filings

Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023