ACK Asset Management LLC Quant / Systematic

CIK: 0001510940 · Show all filings

Period: Q4 2025 (← Previous)

Filing Date: Feb 13, 2026

Total Value ($000): $796,757 (100.0% shares, 0.0% debt)

Holdings (23)

New Positions (6)

NOVT NOVT 5.6%

Value ($000) $44,621 Shares 375,000 Est. Cost $113.88 Unrealized 0.0%

ROG ROG 5.0%

Value ($000) $39,989 Shares 436,707 Est. Cost $85.87 Unrealized 0.0%

DXPE DXPE 3.3%

Value ($000) $26,350 Shares 240,000 Est. Cost $108.93 Unrealized 0.0%

CDNL CDNL 2.6%

Value ($000) $20,422 Shares 844,591 Est. Cost $24.69 Unrealized 0.0%

ERII ERII 1.1%

Value ($000) $9,136 Shares 677,251 Est. Cost $15.16 Unrealized 0.0%

MTASF AERO-SWX 0.7%

Value ($000) $5,527 Shares 154,851 Est. Cost $32.60 Unrealized 0.0%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
NOVT	NOVT	375,000	$44,621	5.6%	$113.88	0.0%	COM	67000B104
ROG	ROG	436,707	$39,989	5.0%	$85.87	0.0%	COM	775133101
DXPE	DXPE	240,000	$26,350	3.3%	$108.93	0.0%	COM	233377407
CDNL	CDNL	844,591	$20,422	2.6%	$24.69	0.0%	COM	14154A102
ERII	ERII	677,251	$9,136	1.1%	$15.16	0.0%	COM	29270J100
MTASF	AERO-SWX	154,851	$5,527	0.7%	$32.60	0.0%	COM	H55555108

Increased Positions (5)

EXP EXP 4.3%

Value ($000) $34,102 (+62.6%) Shares 165,000 (+83.3%) Est. Cost $223.63 Unrealized -1.4%

SITE SITE 5.2%

Value ($000) $41,105 (+14.0%) Shares 330,000 (+17.9%) Est. Cost $125.42 Unrealized +1.0%

HLIO HLIO 5.2%

Value ($000) $41,742 (+4.0%) Shares 780,378 (+1.3%) Est. Cost $46.79 Unrealized +15.2%

APOG APOG 3.7%

Value ($000) $29,601 (-4.0%) Shares 813,000 (+14.8%) Est. Cost $41.65 Unrealized -10.1%

ASTE ASTE 4.3%

Value ($000) $34,071 (+0.9%) Shares 786,500 (+12.1%) Est. Cost $43.76 Unrealized +4.1%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
EXP	EXP	165,000 (+83.3%)	$34,102 (+62.6%)	4.3%	$223.63	-1.4%	COM	26969P108
SITE	SITE	330,000 (+17.9%)	$41,105 (+14.0%)	5.2%	$125.42	+1.0%	COM	82982L103
HLIO	HLIO	780,378 (+1.3%)	$41,742 (+4.0%)	5.2%	$46.79	+15.2%	COM	42328H109
APOG	APOG	813,000 (+14.8%)	$29,601 (-4.0%)	3.7%	$41.65	-10.1%	COM	037598109
ASTE	ASTE	786,500 (+12.1%)	$34,071 (+0.9%)	4.3%	$43.76	+4.1%	COM	046224101

Exited Positions (3)

JBTM JBTM 6.2%

Value ($000) $49,234 Shares 350,546 Est. Cost $114.97 Unrealized +22.6%

CTRI CTRI 3.7%

Value ($000) $29,109 Shares 1,375,000 Est. Cost $19.47 Unrealized +14.8%

NPKI NPKI 2.2%

Value ($000) $17,834 Shares 1,576,808 Est. Cost $7.86 Unrealized +55.2%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
JBTM	JBTM	350,546	$49,234	6.2%	$114.97	+22.6%	—	477839104
CTRI	CTRI	1,375,000	$29,109	3.7%	$19.47	+14.8%	—	155923105
NPKI	NPKI	1,576,808	$17,834	2.2%	$7.86	+55.2%	—	651718504

Decreased Positions (6)

ATRO ATRO 4.1%

Value ($000) $32,407 (-42.2%) Shares 597,469 (-51.4%) Est. Cost $13.20 Unrealized +281.1%

ENS ENS 5.6%

Value ($000) $44,660 (-32.3%) Shares 304,324 (-47.9%) Est. Cost $71.97 Unrealized +85.3%

AIN AIN 3.8%

Value ($000) $30,420 (-24.9%) Shares 600,000 (-21.1%) Est. Cost $64.88 Unrealized -20.5%

CTOS CTOS 0.6%

Value ($000) $4,609 (-62.7%) Shares 800,136 (-58.4%) Est. Cost $4.35 Unrealized +40.4%

MTRN MTRN 7.4%

Value ($000) $59,027 (-6.9%) Shares 474,800 (-9.5%) Est. Cost $71.33 Unrealized +72.9%

GVA GVA 7.2%

Value ($000) $57,675 (-3.5%) Shares 500,000 (-8.3%) Est. Cost $75.50 Unrealized +42.3%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
ATRO	ATRO	597,469 (-51.4%)	$32,407 (-42.2%)	4.1%	$13.20	+281.1%	COM	046433108
ENS	ENS	304,324 (-47.9%)	$44,660 (-32.3%)	5.6%	$71.97	+85.3%	COM	29275Y102
AIN	AIN	600,000 (-21.1%)	$30,420 (-24.9%)	3.8%	$64.88	-20.5%	COM	012348108
CTOS	CTOS	800,136 (-58.4%)	$4,609 (-62.7%)	0.6%	$4.35	+40.4%	COM	23204X103
MTRN	MTRN	474,800 (-9.5%)	$59,027 (-6.9%)	7.4%	$71.33	+72.9%	COM	576690101
GVA	GVA	500,000 (-8.3%)	$57,675 (-3.5%)	7.2%	$75.50	+42.3%	COM	387328107

Unchanged Positions (6)

MBC MBC 3.2%

Value ($000) $25,392 Shares 2,300,000 Est. Cost $12.36 Unrealized -5.3%

CLFD CLFD 2.3%

Value ($000) $18,225 Shares 625,200 Est. Cost $27.84 Unrealized +15.4%

JHX JHX 5.5%

Value ($000) $43,575 Shares 2,100,000 Est. Cost $23.95 Unrealized -16.3%

ATS ATS 6.4%

Value ($000) $50,844 Shares 1,846,196 Est. Cost $33.78 Unrealized -20.9%

WMS WMS 7.1%

Value ($000) $56,484 Shares 390,000 Est. Cost $113.87 Unrealized +27.1%

CNM CNM 5.9%

Value ($000) $46,773 Shares 900,000 Est. Cost $60.57 Unrealized -15.3%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
MBC	MBC	2,300,000	$25,392	3.2%	$12.36	-5.3%	COM	57638P104
CLFD	CLFD	625,200	$18,225	2.3%	$27.84	+15.4%	COM	18482P103
JHX	JHX	2,100,000	$43,575	5.5%	$23.95	-16.3%	COM	G4253H101
ATS	ATS	1,846,196	$50,844	6.4%	$33.78	-20.9%	COM	00217Y104
WMS	WMS	390,000	$56,484	7.1%	$113.87	+27.1%	COM	00790R104
CNM	CNM	900,000	$46,773	5.9%	$60.57	-15.3%	COM	21874C102