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AAM

ACK Asset Management Portfolio holdings

AUM $856M
1-Year Est. Return 70.44%
This Fund
S&P 500
This Quarter Est. Return
+33.24%
1 Year Est. Return
+70.44%
3 Year Est. Return
+131.86%
5 Year Est. Return
+196.03%
10 Year Est. Return
+1,316.95%
AUM
$856M
AUM Growth
+$55.2M
Cap. Flow
-$91.9M
Cap. Flow %
-10.74%
Top 10 Hldgs %
60.24%
Holding
27
New
7
Increased
5
Reduced
5
Closed
6

Top Buys

Rank Stock Value
1
GTX icon
Garrett Motion
GTX
+$41.7M
2
DNOW icon
DNOW Inc
DNOW
+$38.9M
3
BWA icon
BorgWarner
BWA
+$38M
4
ST icon
Sensata Technologies
ST
+$27.1M
5
EQPT
EquipmentShare.com Inc
EQPT
+$22.8M

Top Sells

Rank Stock Value
1
MTRN icon
Materion
MTRN
+$71.2M
2
ROG icon
Rogers Corp
ROG
+$51M
3
NOVT icon
Novanta
NOVT
+$44.3M
4
DXPE icon
DXP Enterprises
DXPE
+$36.3M
5
CDNL
Cardinal Infrastructure Group
CDNL
+$34.7M

Sector Composition

Rank Sector Weight
1 Industrials 46.04%
2 Technology 18.31%
3 Materials 16.89%
4 Consumer Discretionary 15.44%
5 Miscellaneous 3.32%

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ACK Asset Management's Q2 2026 Portfolio in Review

As of Q2 2026, ACK Asset Management held 27 positions worth $856M, up 6.9% from $801M the previous quarter. Its ten largest holdings account for 60% of the portfolio.

ACK Asset Management withdrew a net $91.9M in Q2 2026, closing 6 positions and reducing 5 holdings. Its most notable exit was Rogers Corp, an estimated $51M position sold in full.

By sector, the portfolio is most concentrated in Industrials at 46% of assets, down from 52% a quarter earlier, followed by Technology and Materials.

Against the trend, ACK Asset Management opened a new position in Garrett Motion worth $54.3M.

  • ACK Asset Management's largest Q2 2026 buy was Garrett Motion: 1,500,000 shares worth $54.3M.
  • ACK Asset Management added most to Eagle Materials in Q2 2026, an estimated $11.5M increase.
  • ACK Asset Management's biggest Q2 2026 reduction was Materion, cutting an estimated $71.2M.
  • ACK Asset Management fully exited Rogers Corp in Q2 2026, selling an estimated $51M.
  • ACK Asset Management's ten largest holdings make up 60% of its $856M portfolio in Q2 2026.
  • ACK Asset Management opened 7 new positions and closed 6 in Q2 2026.
  • ACK Asset Management's portfolio value rose 6.9% quarter-over-quarter to $856M.

Based on ACK Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.