ACK Asset Management LLC Quant / Systematic

Location: Greenwich, CT

CIK: 0001510940 · Show all filings

Period: Q4 2025 (← Previous) (Next →)

Filing Date: Feb 13, 2026

Total Value: $797M (100.0% shares, 0.0% debt)

Holdings (23)

Value $59.03M Shares 474,800 Est. Cost $71.33 Unrealized +72.9%

Value $57.67M Shares 500,000 Est. Cost $75.50 Unrealized +42.3%

Value $56.48M Shares 390,000 Est. Cost $113.87 Unrealized +27.1%

Value $50.84M Shares 1,846,196 Est. Cost $33.78 Unrealized -20.9%

Value $46.77M Shares 900,000 Est. Cost $60.57 Unrealized -15.3%

Value $44.66M Shares 304,324 Est. Cost $71.97 Unrealized +85.3%

Value $44.62M Shares 375,000 Est. Cost $113.88 Unrealized 0.0%

Value $43.58M Shares 2,100,000 Est. Cost $23.95 Unrealized -16.3%

Value $41.74M Shares 780,378 Est. Cost $46.79 Unrealized +15.2%

Value $41.1M Shares 330,000 Est. Cost $125.42 Unrealized +1.0%

Value $39.99M Shares 436,707 Est. Cost $85.87 Unrealized 0.0%

Value $34.1M Shares 165,000 Est. Cost $223.63 Unrealized -1.4%

Value $34.07M Shares 786,500 Est. Cost $43.76 Unrealized +4.1%

Value $32.41M Shares 597,469 Est. Cost $13.20 Unrealized +281.1%

Value $30.42M Shares 600,000 Est. Cost $64.88 Unrealized -20.5%

Value $29.6M Shares 813,000 Est. Cost $41.65 Unrealized -10.1%

Value $26.35M Shares 240,000 Est. Cost $108.93 Unrealized 0.0%

Value $25.39M Shares 2,300,000 Est. Cost $12.36 Unrealized -5.3%

Value $20.42M Shares 844,591 Est. Cost $24.69 Unrealized 0.0%

Value $18.22M Shares 625,200 Est. Cost $27.84 Unrealized +15.4%

Value $9.136M Shares 677,251 Est. Cost $15.16 Unrealized 0.0%

MTASF AERO-SWX 0.7%

Value $5.527M Shares 154,851 Est. Cost $32.60 Unrealized 0.0%

Value $4.609M Shares 800,136 Est. Cost $4.35 Unrealized +40.4%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
MTRN	MTRN	474,800	$59.03M	7.4%	$71.33	+72.9%	COM	576690101
GVA	GVA	500,000	$57.67M	7.2%	$75.50	+42.3%	COM	387328107
WMS	WMS	390,000	$56.48M	7.1%	$113.87	+27.1%	COM	00790R104
ATS	ATS	1,846,196	$50.84M	6.4%	$33.78	-20.9%	COM	00217Y104
CNM	CNM	900,000	$46.77M	5.9%	$60.57	-15.3%	COM	21874C102
ENS	ENS	304,324	$44.66M	5.6%	$71.97	+85.3%	COM	29275Y102
NOVT	NOVT	375,000	$44.62M	5.6%	$113.88	0.0%	COM	67000B104
JHX	JHX	2,100,000	$43.58M	5.5%	$23.95	-16.3%	COM	G4253H101
HLIO	HLIO	780,378	$41.74M	5.2%	$46.79	+15.2%	COM	42328H109
SITE	SITE	330,000	$41.1M	5.2%	$125.42	+1.0%	COM	82982L103
ROG	ROG	436,707	$39.99M	5.0%	$85.87	0.0%	COM	775133101
EXP	EXP	165,000	$34.1M	4.3%	$223.63	-1.4%	COM	26969P108
ASTE	ASTE	786,500	$34.07M	4.3%	$43.76	+4.1%	COM	046224101
ATRO	ATRO	597,469	$32.41M	4.1%	$13.20	+281.1%	COM	046433108
AIN	AIN	600,000	$30.42M	3.8%	$64.88	-20.5%	COM	012348108
APOG	APOG	813,000	$29.6M	3.7%	$41.65	-10.1%	COM	037598109
DXPE	DXPE	240,000	$26.35M	3.3%	$108.93	0.0%	COM	233377407
MBC	MBC	2,300,000	$25.39M	3.2%	$12.36	-5.3%	COM	57638P104
CDNL	CDNL	844,591	$20.42M	2.6%	$24.69	0.0%	COM	14154A102
CLFD	CLFD	625,200	$18.22M	2.3%	$27.84	+15.4%	COM	18482P103
ERII	ERII	677,251	$9.136M	1.1%	$15.16	0.0%	COM	29270J100
MTASF	AERO-SWX	154,851	$5.527M	0.7%	$32.60	0.0%	COM	H55555108
CTOS	CTOS	800,136	$4.609M	0.6%	$4.35	+40.4%	COM	23204X103