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MCM

Mason Capital Management Portfolio holdings

AUM $607M
1-Year Est. Return 1.77%
This Fund
S&P 500
This Quarter Est. Return
+6.57%
1 Year Est. Return
+1.77%
3 Year Est. Return
-18.46%
5 Year Est. Return
+39.95%
10 Year Est. Return
+284.4%
AUM
$607M
AUM Growth
-$5.83M
Cap. Flow
-$32.7M
Cap. Flow %
-5.39%
Top 10 Hldgs %
100%
Holding
9
New
2
Increased
2
Reduced
1
Closed

Top Buys

Rank Stock Value
1
GRPN icon
Groupon
GRPN
+$10.8M
2
BKD icon
Brookdale Senior Living
BKD
+$4.65M
3
JELD icon
JELD-WEN Holding
JELD
+$3.59M

Top Sells

Rank Stock Value
1
NVRI icon
Enviri
NVRI
+$54.4M

Sector Composition

Rank Sector Weight
1 Industrials 84.95%
2 Healthcare 6.83%
3 Communication Services 6.52%
4 Real Estate 1.25%
5 Miscellaneous 0.43%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
ATS icon
1
ATS Corp
ATS
$1.89B
$472M 77.78%
16,404,170
BKD icon
2
Brookdale Senior Living
BKD
$2.8B
$41.4M 6.83%
2,575,826
+342,085
+15% +$4.65M
NVRI icon
3
Enviri
NVRI
$628M
$38.9M 6.4%
1,770,959
-2,723,577
-61% -$54.4M
CCO icon
4
Clear Channel Outdoor Holdings
CCO
$1.19B
$23.8M 3.92%
9,828,401
GRPN icon
5
Groupon
GRPN
$794M
$15.8M 2.6%
+657,144
New +$10.8M
RC
6
Ready Capital
RC
$302M
$7.56M 1.25%
4,319,933
JELD icon
7
JELD-WEN Holding
JELD
$220M
$4.66M 0.77%
3,109,621
+2,332,736
+300% +$3.59M
SBNY
8
DELISTED
Signature Bank
SBNY
$180K 0.03%
400,000

Similar funds

Mason Capital Management's Q2 2026 Portfolio in Review

As of Q2 2026, Mason Capital Management held 9 positions worth $607M, down 0.95% from $613M the previous quarter. Its ten largest holdings account for 100% of the portfolio.

Mason Capital Management withdrew a net $32.7M in Q2 2026, reducing 1 holding. Its largest reduction was Enviri, cutting an estimated $54.4M.

By sector, the portfolio is most concentrated in Industrials at 85% of assets, down from 90% a quarter earlier, followed by Healthcare and Communication Services.

Against the trend, Mason Capital Management opened a new position in Groupon worth $15.8M.

  • Mason Capital Management's largest Q2 2026 buy was Groupon: 657,144 shares worth $15.8M.
  • Mason Capital Management added most to Brookdale Senior Living in Q2 2026, an estimated $4.65M increase.
  • Mason Capital Management's biggest Q2 2026 reduction was Enviri, cutting an estimated $54.4M.
  • Mason Capital Management's ten largest holdings make up 100% of its $607M portfolio in Q2 2026.
  • Mason Capital Management opened 2 new positions and closed 0 in Q2 2026.
  • Mason Capital Management's portfolio value fell 0.95% quarter-over-quarter to $607M.

Based on Mason Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.