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Latest ACK Asset Management LLC Stock Portfolio

ACK Asset Management LLC Performance:
2025 Q4: 1.2%YTD: 15.47%2024: 6.75%
Performance for 2025 Q4 is 1.2%, and YTD is 15.47%, and 2024 is 6.75%.

About ACK Asset Management LLC and 13F Hedge Fund Stock Holdings

On 2026-02-13, the fund reported it's updated stock portfolio. In the 13F Holdings report, ACK Asset Management LLC reported an equity portfolio of $796.8 Millions as of 31 Dec, 2025.

The top stock holdings of ACK Asset Management LLC are MTRN, GVA, WMS. The fund has invested 7.4% of it's portfolio in MTRN and 7.2% of portfolio in GVA.

The fund managers got completely rid off JBTM (JBT), CTRI and NPKI (NR) stocks. They significantly reduced their stock positions in CTOS (CTOS), ATRO (ATRO) and ENS (ENS). ACK Asset Management LLC opened new stock positions in NOVT (NOVT), ROG (ROG) and DXPE (DXPE). The fund showed a lot of confidence in some stocks as they added substantially to EXP (EXP), SITE (SITE) and APOG (APOG).

ACK Asset Management LLC Annual Return Estimates Vs S&P 500

Our best estimate is that ACK Asset Management LLC made a return of 1.2% in the last quarter. In trailing 12 months, it's portfolio return was 15.47%.
  • Performance
  • S&P 500

New Buys

Ticker$ Bought
novt44,621,200
rog39,989,300
dxpe26,349,600
cdnl20,422,200
erii9,136,120
aero-swx5,526,770
New stocks bought by ACK Asset Management LLC

Additions

Ticker% Inc.
exp83.33
site17.86
apog14.83
aste12.12
hlio1.35
Additions to existing portfolio by ACK Asset Management LLC

Reductions

Ticker% Reduced
ctos-58.43
atro-51.43
ens-47.92
ain-21.05
mtrn-9.53
gva-8.26
ACK Asset Management LLC reduced stake in above stock

Sold off

Ticker$ Sold
npki-17,833,700
ctri-29,108,800
jbtm-49,234,200
ACK Asset Management LLC got rid off the above stocks

Sector Distribution

ACK Asset Management LLC has about 53.3% of it's holdings in Industrials sector.

Sector%
Industrials53.3
Others18.3
Technology12.9
Basic Materials11.7
Consumer Cyclical3.8

Market Cap. Distribution

ACK Asset Management LLC has about 13% of it's portfolio invested in the large-cap and mega-cap stocks.

Category%
MID-CAP47.9
SMALL-CAP20.8
UNALLOCATED18.3
LARGE-CAP13

Stocks belong to which Index?

About 59.3% of the stocks held by ACK Asset Management LLC either belong to S&P 500 or RUSSELL 2000 index.

Index%
RUSSELL 200059.3
Others40.7
Top 5 Winners (%)%
ENS
ens
22.8 %
ATRO
atro
14.1 %
jhx
8.0 %
ats
5.1 %
GVA
gva
5.0 %
Top 5 Winners ($)$
ENS
ens
15.0 M
ATRO
atro
7.9 M
jhx
3.2 M
GVA
gva
3.0 M
ats
2.5 M
Top 5 Losers (%)%
mbc
-16.2 %
APOG
apog
-15.5 %
CLFD
clfd
-15.2 %
ASTE
aste
-9.5 %
EXP
exp
-9.0 %
Top 5 Losers ($)$
APOG
apog
-5.4 M
mbc
-4.9 M
ASTE
aste
-3.6 M
EXP
exp
-3.4 M
CLFD
clfd
-3.3 M

ACK Asset Management LLC Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of ACK Asset Management LLC

ACK Asset Management LLC has 23 stocks in it's portfolio. About 61.1% of the portfolio is in top 10 stocks. APOG proved to be the most loss making stock for the portfolio. ENS was the most profitable stock for ACK Asset Management LLC last quarter.

Last Reported on: 13 Feb, 2026
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions