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JANA Partners Management Portfolio holdings

AUM $1.9B
1-Year Est. Return 18.33%
This Fund
S&P 500
This Quarter Est. Return
-7.82%
1 Year Est. Return
+18.33%
3 Year Est. Return
+47.25%
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$1.67B
AUM Growth
-$254M
Cap. Flow
-$70.3M
Cap. Flow %
-4.22%
Top 10 Hldgs %
98.23%
Holding
13
New
1
Increased
3
Reduced
3
Closed
2

Top Buys

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$136M
2
P
Everpure Inc
P
+$70.6M
3
ALKT icon
Alkami Technology
ALKT
+$9.88M
4
COO icon
Cooper Companies
COO
+$3.6M

Top Sells

Rank Stock Value
1
THS
Treehouse Foods
THS
+$137M
2
MRCY icon
Mercury Systems
MRCY
+$74.2M
3
FRPT icon
Freshpet
FRPT
+$34M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$32.4M
5
MKL icon
Markel Group
MKL
+$12M

Sector Composition

Rank Sector Weight
1 Technology 25.87%
2 Industrials 17.96%
3 Healthcare 17.05%
4 Miscellaneous 13.4%
5 Consumer Staples 12.69%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MRCY icon
1
Mercury Systems
MRCY
$5.32B
$299M 17.96%
4,107,424
-852,057
-17% -$74.2M
COO icon
2
Cooper Companies
COO
$13.9B
$255M 15.29%
3,565,158
+45,538
+1% +$3.6M
FISV
3
Fiserv Inc
FISV
$28.3B
$248M 14.84%
4,435,605
+2,190,085
+98% +$136M
SPY icon
4
State Street SPDR S&P 500 ETF Trust
SPY
$825B
$223M 13.4%
343,665
-47,672
-12% -$32.4M
LW icon
5
Lamb Weston
LW
$7.56B
$212M 12.69%
5,008,635
– –
MKL icon
6
Markel Group
MKL
$22.5B
$144M 8.64%
75,307
-5,912
-7% -$12M
ALKT icon
7
Alkami Technology
ALKT
$2.16B
$85.1M 5.1%
5,431,388
+536,723
+11% +$9.88M
FUN icon
8
Cedar Fair
FUN
$1.66B
$73.1M 4.38%
4,116,099
– –
P
9
Everpure Inc
P
$31B
$61.5M 3.69%
+1,042,296
New +$70.6M
RPD icon
10
Rapid7
RPD
$896M
$37.2M 2.23%
6,743,653
– –
EHAB
11
DELISTED
Enhabit
EHAB
$29.5M 1.77%
2,090,412
– –
FRPT icon
12
Freshpet
FRPT
$3.4B
– –
-557,390
Closed -$34M
THS
13
DELISTED
Treehouse Foods
THS
– –
-5,821,337
Closed -$137M

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JANA Partners Management's Q1 2026 Portfolio in Review

As of Q1 2026, JANA Partners Management held 13 positions worth $1.67B, down 13% from $1.92B the previous quarter. Its ten largest holdings account for 98% of the portfolio.

JANA Partners Management withdrew a net $70.3M in Q1 2026, closing 2 positions and reducing 3 holdings. Its most notable exit was Treehouse Foods, an estimated $137M position sold in full.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 19% a quarter earlier, followed by Industrials and Healthcare.

Against the trend, JANA Partners Management opened a new position in Everpure Inc worth $61.5M.

  • JANA Partners Management's largest Q1 2026 buy was Everpure Inc: 1,042,296 shares worth $61.5M.
  • JANA Partners Management added most to Fiserv Inc in Q1 2026, an estimated $136M increase.
  • JANA Partners Management's biggest Q1 2026 reduction was Mercury Systems, cutting an estimated $74.2M.
  • JANA Partners Management fully exited Treehouse Foods in Q1 2026, selling an estimated $137M.
  • JANA Partners Management's ten largest holdings make up 98% of its $1.67B portfolio in Q1 2026.
  • JANA Partners Management opened 1 new position and closed 2 in Q1 2026.
  • JANA Partners Management's portfolio value fell 13% quarter-over-quarter to $1.67B.

Based on JANA Partners Management's 13F filing for Q1 2026, filed 15 May 2026.