13D Management LLC

CIK: 0001600133SEC EDGAR →

Portfolio Value

$84.0B

Holdings

16

As of

Q4 2025

New Positions

4

Closed Positions

6

Portfolio Value History

Top 10 Holdings

RankStockSharesValue% of Portfolio
1

TWILIO INC

60,755$8.6B
10.28%
2

MERCURY SYS INC

103,762$7.6B
9.01%
3

VIASAT INC

201,750$7.0B
8.27%
4

AUTOLIV INC

55,839$6.6B
7.89%
5

PEARSON PLC

458,338$6.4B
7.66%
6

CHARLES RIV LABS INTL INC

28,000$5.6B
6.65%
7

EXELIXIS INC

120,335$5.3B
6.28%
8

SOUTHWEST GAS HLDGS INC

63,798$5.1B
6.07%
9

BILL HOLDINGS INC

90,000$4.9B
5.84%
10

WORKIVA INC

52,000$4.5B
5.34%

Quarterly Changes

Top Buys

WKNEW
$4.5B
WEXNEW
$4.4B
ITGRNEW
$3.7B
FUNNEW
$2.9B

Top Sells

QRVOCLOSED
$8.1B
JHGCLOSED
$6.0B
AWGCLOSED
$5.2B
MTCHCLOSED
$4.7B
PFGCCLOSED
$4.5B

New Positions (4)

$4.5B · 52K shares
$4.4B · 29K shares
$3.7B · 47K shares
$2.9B · 187K shares

Closed Positions (6)

$8.1B · 89K shares
$6.0B · 135K shares
$5.2B · 21K shares
$4.7B · 133K shares
$4.5B · 43K shares
$4.4B · 132K shares

Sector Breakdown

Sector# HoldingsValue%
Technology4$20.7B24.7%
Consumer Cyclical4$17.8B21.2%
Communication Services2$15.1B17.9%
Healthcare2$9.3B11.0%
Industrials1$7.6B9.0%
Unknown1$5.3B6.3%
Utilities1$5.1B6.1%
Consumer Defensive1$3.2B3.8%