ACK Asset Management LLC Quant / Systematic

Location: Greenwich, CT

CIK: 0001510940 · Show all filings

Period: Q2 2025 (← Previous) (Next →)

Filing Date: Aug 13, 2025

Total Value: $761M (100.0% shares, 0.0% debt)

Holdings (21)

Value $68.97M Shares 2,060,000 Est. Cost $13.20 Unrealized +112.4%

Value $58.86M Shares 1,846,196 Est. Cost $33.78 Unrealized -18.9%

Value $54.91M Shares 224,700 Est. Cost $94.93 Unrealized +107.3%

Value $50.96M Shares 545,000 Est. Cost $75.50 Unrealized +11.6%

Value $50.12M Shares 584,324 Est. Cost $71.97 Unrealized +20.4%

Value $48.12M Shares 265,200 Est. Cost $137.92 Unrealized +6.5%

Value $45.6M Shares 2,032,000 Est. Cost $19.47 Unrealized +0.4%

Value $42.16M Shares 350,546 Est. Cost $114.97 Unrealized -3.0%

Value $41.65M Shares 524,800 Est. Cost $71.33 Unrealized +10.6%

Value $41.03M Shares 585,000 Est. Cost $65.47 Unrealized 0.0%

Value $39.86M Shares 275,000 Est. Cost $125.42 Unrealized 0.0%

Value $39.63M Shares 345,000 Est. Cost $111.63 Unrealized 0.0%

Value $31.08M Shares 2,267,000 Est. Cost $12.49 Unrealized —

Value $30.23M Shares 250,000 Est. Cost $123.95 Unrealized -4.7%

Value $28.79M Shares 1,337,000 Est. Cost $10.60 Unrealized +62.6%

Value $27.14M Shares 625,200 Est. Cost $27.84 Unrealized +23.1%

Value $21.3M Shares 125,000 Est. Cost $74.84 Unrealized +92.4%

Value $14.69M Shares 1,087,100 Est. Cost $10.68 Unrealized +13.0%

Value $10.44M Shares 1,226,808 Est. Cost $7.33 Unrealized 0.0%

Value $9.262M Shares 1,875,000 Est. Cost $4.31 Unrealized 0.0%

Value $6.626M Shares 75,600 Est. Cost $83.28 Unrealized 0.0%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
ATRO	ATRO	2,060,000	$68.97M	9.1%	$13.20	+112.4%	COM	046433108
ATS	ATS	1,846,196	$58.86M	7.7%	$33.78	-18.9%	COM	00217Y104
DY	DY	224,700	$54.91M	7.2%	$94.93	+107.3%	COM	267475101
GVA	GVA	545,000	$50.96M	6.7%	$75.50	+11.6%	COM	387328107
ENS	ENS	584,324	$50.12M	6.6%	$71.97	+20.4%	COM	29275Y102
MYRG	MYRG	265,200	$48.12M	6.3%	$137.92	+6.5%	COM	55405W104
CTRI	CTRI	2,032,000	$45.6M	6.0%	$19.47	+0.4%	COM	155923105
JBTM	JBTM	350,546	$42.16M	5.5%	$114.97	-3.0%	COM	477839104
MTRN	MTRN	524,800	$41.65M	5.5%	$71.33	+10.6%	COM	576690101
AIN	AIN	585,000	$41.03M	5.4%	$65.47	0.0%	COM	012348108
RRX	RRX	275,000	$39.86M	5.2%	$125.42	0.0%	COM	758750103
WMS	WMS	345,000	$39.63M	5.2%	$111.63	0.0%	COM	00790R104
—	MRC	2,267,000	$31.08M	4.1%	$12.49	—	COM	55345K103
SITE	SITE	250,000	$30.23M	4.0%	$123.95	-4.7%	COM	82982L103
MIR	MIR	1,337,000	$28.79M	3.8%	$10.60	+62.6%	COM	60471A101
CLFD	CLFD	625,200	$27.14M	3.6%	$27.84	+23.1%	COM	18482P103
MTZ	MTZ	125,000	$21.3M	2.8%	$74.84	+92.4%	COM	576323109
MTRX	MTRX	1,087,100	$14.69M	1.9%	$10.68	+13.0%	COM	576853105
NPKI	NPKI	1,226,808	$10.44M	1.4%	$7.33	0.0%	COM	651718504
CTOS	CTOS	1,875,000	$9.262M	1.2%	$4.31	0.0%	COM	23204X103
DXPE	DXPE	75,600	$6.626M	0.9%	$83.28	0.0%	COM	233377407