ACK Asset Management LLC

Q1 2026 13F Holdings

  • Location
    greenwich, CT
  • Num holdings

    20

  • Value ($000)

    $801,145

  • Date Filed
    05/15/2026
  • Form type
    13F-HR
  • CIK
    0001510940
  • All SEC filings
  • Note
    Holdings aggregated across “other managers” listed in original SEC filing, see here for detailed holdings broken out by other managers
Compare Q1 2026 to
Select Quarter
Issuer Name
Class
CUSIP
VALUE
%
Shares
Principal
Option Type
MTRN

MTRN

COM
$68.68M
9 %

474,800

WMS

WMS

COM
$53.48M
7 %

390,000

ATS

ATS

COM
$52.06M
7 %

1,846,196

RG6

ROG

COM
$50.98M
6 %

475,000

HLIO

HLIO

COM
$50.5M
6 %

780,378

LFUS

LFUS

COM
$45.81M
6 %

135,000

CNM

CNM

COM
$44.46M
6 %

900,000

1GSN

NOVT

COM
$44.29M
6 %

375,000

SITE

SITE

COM
$43.93M
6 %

330,000

ASTE

ASTE

COM
$42.35M
5 %

786,500

Rows Per Page
10
  • 10
  • 50
  • 100
1 - 10 of 20