AI Portfolio Summary
In 2025 Q4, ACK Asset Management LLC maintained a portfolio of 26 distinct positions. The most significant new addition to the portfolio was NOVT, which now represents 5.60% of the total fund value. Conversely, ACK Asset Management LLC completely exited their position in JBTM.
Total Positions
26
Quarter
2025 Q4
Top Holding
MTRN (7.4%)
Top 10 Concentration
61.1%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-25 of 26
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MTRN
MTRN
|
Basic Materials | 7.41% | 7.93% |
#1
1
Prev: #2
|
3.0 | -50,000 | -9.5% |
P
S
|
474,800 | $59,027,136 | 2012 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GVA
GVA
|
Industrials | 7.24% | 7.48% |
#2
1
Prev: #3
|
2.9 | -45,000 | -8.3% |
P
S
|
500,000 | $57,675,000 | 2011 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
WMS
WMS
|
Industrials | 7.09% | 6.77% |
#3
2
Prev: #5
|
2.8 | no change | no change |
P
S
|
390,000 | $56,483,700 | 2014 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ATS
ATS
|
Industrials | 6.38% | 6.05% |
#4
4
Prev: #8
|
2.6 | no change | no change |
P
S
|
1,846,196 | $50,844,238 | 2022 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CNM
CNM
|
Industrials | 5.87% | 6.06% |
#5
2
Prev: #7
|
2.3 | no change | no change |
P
S
|
900,000 | $46,773,000 | 2023 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ENS
ENS
|
Industrials | 5.61% | 8.26% |
#6
5
Prev: #1
|
2.4 | -280,000 | -47.9% |
P
S
|
304,324 | $44,659,547 | 2011 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NOVT
NOVT
|
Technology | 5.60% | — |
#7
Prev: #—
|
4.2 | 375,000 | no change |
NEW
|
375,000 | $44,621,250 | 2025 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
JHX
|
—
|
Unknown | 5.47% | 5.05% |
#8
2
Prev: #10
|
2.2 | no change | no change |
P
S
|
2,100,000 | $43,575,000 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
HLIO
HLIO
|
Industrials | 5.24% | 5.02% |
#9
2
Prev: #11
|
4.1 | 10,378 | 1.3% |
P
S
|
780,378 | $41,742,419 | 2020 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SITE
SITE
|
Industrials | 5.16% | 4.51% |
#10
2
Prev: #12
|
4.1 | 50,000 | 17.9% |
P
S
|
330,000 | $41,104,800 | 2025 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ROG
ROG
|
Technology | 5.02% | — |
#11
Prev: #—
|
4.0 | 436,707 | no change |
NEW
|
436,707 | $39,989,260 | 2010 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
EXP
EXP
|
Basic Materials | 4.28% | 2.62% |
#12
6
Prev: #18
|
4.0 | 75,000 | 83.3% |
P
S
|
165,000 | $34,102,200 | 2015 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ASTE
ASTE
|
Industrials | 4.28% | 4.22% |
#13
Prev: #13
|
3.7 | 85,000 | 12.1% |
P
S
|
786,500 | $34,071,180 | 2014 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ATRO
ATRO
|
Industrials | 4.07% | 7.02% |
#14
10
Prev: #4
|
1.8 | -632,531 | -51.4% |
P
S
|
597,469 | $32,406,719 | 2013 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AIN
AIN
|
Consumer Cyclical | 3.82% | 5.07% |
#15
6
Prev: #9
|
1.6 | -160,000 | -21.1% |
P
S
|
600,000 | $30,420,000 | 2025 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
APOG
APOG
|
Industrials | 3.72% | 3.86% |
#16
2
Prev: #14
|
3.5 | 105,000 | 14.8% |
P
S
|
813,000 | $29,601,330 | 2025 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
DXPE
DXPE
|
Industrials | 3.31% | — |
#17
Prev: #—
|
3.3 | 240,000 | no change |
NEW
|
240,000 | $26,349,600 | 2025 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
MBC
MBC
|
Consumer Cyclical | 3.19% | 3.79% |
#18
3
Prev: #15
|
1.3 | no change | no change |
P
S
|
2,300,000 | $25,392,000 | 2024 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CDNL
CDNL
|
Industrials | 2.56% | — |
#19
Prev: #—
|
3.0 | 844,591 | no change |
NEW
|
844,591 | $20,422,210 | 2025 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CLFD
CLFD
|
Technology | 2.29% | 2.69% |
#20
3
Prev: #17
|
0.9 | no change | no change |
P
S
|
625,200 | $18,224,580 | 2023 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ERII
ERII
|
Industrials | 1.15% | — |
#21
Prev: #—
|
2.5 | 677,251 | no change |
NEW
|
677,251 | $9,136,116 | 2022 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
N/A
AERO-SWX
|
—
|
Unknown | 0.69% | — |
#22
Prev: #—
|
2.3 | 154,851 | no change |
NEW
|
154,851 | $5,526,772 | — | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | ||
|
CTOS
CTOS
|
Industrials | 0.58% | 1.55% |
#23
3
Prev: #20
|
0.4 | -1,124,864 | -58.4% |
P
S
|
800,136 | $4,608,783 | 2025 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
JBTM
JBTM
|
Industrials | 0.00% | 6.16% |
Sold All 😨
(Was: #6) |
0.3 | -350,546 | -100.0% |
CLOSED
|
— | $— | 2020 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CTRI
CTRI
|
Utilities | 0.00% | 3.64% |
Sold All 😨
(Was: #16) |
0.3 | -1,375,000 | -100.0% |
CLOSED
|
— | $— | 2024 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NPKI
NPKI
|
Energy | 0.00% | 2.23% |
Sold All 😨
(Was: #19) |
0.3 | -1,576,808 | -100.0% |
CLOSED
|
— | $— | 2025 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) |
Showing 1-25 of 26 holdings