ACK Asset Management LLC Quant / Systematic

Location: Greenwich, CT

CIK: 0001510940 · Show all filings

Period: Q1 2025 (← Previous) (Next →)

Filing Date: May 13, 2025

Total Value: $609M (100.0% shares, 0.0% debt)

Holdings (20)

DY DYCOM INDUSTRIES INC 9.6%

Value $58.32M Shares 382,800 Est. Cost $94.93 Unrealized +81.5%

ENS ENERSYS 9.4%

Value $57.18M Shares 624,324 Est. Cost $71.97 Unrealized +34.3%

MTZ MASTEC INC 8.9%

Value $54M Shares 462,700 Est. Cost $74.84 Unrealized +80.3%

ATS ATS CORP 8.2%

Value $50.19M Shares 2,013,196 Est. Cost $33.78 Unrealized -17.4%

ATRO ASTRONICS CORP 8.2%

Value $49.79M Shares 2,060,000 Est. Cost $13.20 Unrealized +52.8%

JBTM JBT MAREL CORPORATION 7.4%

Value $45.19M Shares 369,800 Est. Cost $114.97 Unrealized +9.8%

MTRN MATERION CORP 6.2%

Value $37.47M Shares 459,200 Est. Cost $70.25 Unrealized +34.2%

ROG ROGERS CORP 5.7%

Value $34.95M Shares 517,500 Est. Cost $141.77 Unrealized -39.3%

MYRG MYR GROUP INC 5.2%

Value $31.56M Shares 279,100 Est. Cost $137.92 Unrealized -3.6%

CECO CECO ENVIRONMENTAL CORP 4.5%

Value $27.38M Shares 1,201,000 Est. Cost $25.68 Unrealized +3.8%

MIR MIRION TECHNOLOGIES INC 3.9%

Value $23.47M Shares 1,618,356 Est. Cost $10.60 Unrealized +48.2%

CLFD CLEARFIELD INC 3.4%

Value $20.42M Shares 687,200 Est. Cost $27.84 Unrealized +20.1%

CTRI CENTURI HOLDINGS INC. 3.3%

Value $20.01M Shares 1,220,591 Est. Cost $19.42 Unrealized -0.9%

— MRC GLOBAL INC 3.0%

Value $17.97M Shares 1,565,000 Est. Cost $11.94 Unrealized —

MBC MASTERBRAND INC 2.8%

Value $17.01M Shares 1,302,500 Est. Cost $16.72 Unrealized -9.1%

BIRDF BIRD CONSTRUCTION INC 2.8%

Value $16.96M Shares 1,120,800 Est. Cost $15.75 Unrealized 0.0%

MTRX MATRIX SERVICE CO 2.4%

Value $14.72M Shares 1,184,100 Est. Cost $10.68 Unrealized +25.4%

GVA GRANITE CONSTRUCTION INC 2.4%

Value $14.38M Shares 190,700 Est. Cost $59.23 Unrealized +41.0%

SITE SITEONE LANDSCAPE SUPPLY INC 2.0%

Value $12.14M Shares 100,000 Est. Cost $132.62 Unrealized 0.0%

LASR NLIGHT INC 1.0%

Value $5.859M Shares 754,000 Est. Cost $10.06 Unrealized 0.0%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
DY	DYCOM INDUSTRIES INC	382,800	$58.32M	9.6%	$94.93	+81.5%	COM	267475101
ENS	ENERSYS	624,324	$57.18M	9.4%	$71.97	+34.3%	COM	29275Y102
MTZ	MASTEC INC	462,700	$54M	8.9%	$74.84	+80.3%	COM	576323109
ATS	ATS CORP	2,013,196	$50.19M	8.2%	$33.78	-17.4%	COM	00217Y104
ATRO	ASTRONICS CORP	2,060,000	$49.79M	8.2%	$13.20	+52.8%	COM	046433108
JBTM	JBT MAREL CORPORATION	369,800	$45.19M	7.4%	$114.97	+9.8%	COM	477839104
MTRN	MATERION CORP	459,200	$37.47M	6.2%	$70.25	+34.2%	COM	576690101
ROG	ROGERS CORP	517,500	$34.95M	5.7%	$141.77	-39.3%	COM	775133101
MYRG	MYR GROUP INC	279,100	$31.56M	5.2%	$137.92	-3.6%	COM	55405W104
CECO	CECO ENVIRONMENTAL CORP	1,201,000	$27.38M	4.5%	$25.68	+3.8%	COM	125141101
MIR	MIRION TECHNOLOGIES INC	1,618,356	$23.47M	3.9%	$10.60	+48.2%	COM	60471A101
CLFD	CLEARFIELD INC	687,200	$20.42M	3.4%	$27.84	+20.1%	COM	18482P103
CTRI	CENTURI HOLDINGS INC.	1,220,591	$20.01M	3.3%	$19.42	-0.9%	COM	155923105
—	MRC GLOBAL INC	1,565,000	$17.97M	3.0%	$11.94	—	COM	55345K103
MBC	MASTERBRAND INC	1,302,500	$17.01M	2.8%	$16.72	-9.1%	COM	57638P104
BIRDF	BIRD CONSTRUCTION INC	1,120,800	$16.96M	2.8%	$15.75	0.0%	COM	09076P104
MTRX	MATRIX SERVICE CO	1,184,100	$14.72M	2.4%	$10.68	+25.4%	COM	576853105
GVA	GRANITE CONSTRUCTION INC	190,700	$14.38M	2.4%	$59.23	+41.0%	COM	387328107
SITE	SITEONE LANDSCAPE SUPPLY INC	100,000	$12.14M	2.0%	$132.62	0.0%	COM	82982L103
LASR	NLIGHT INC	754,000	$5.859M	1.0%	$10.06	0.0%	COM	65487K100