JANA Partners Management, LP
13F Reported Value
ⓘ$1.9B
Holdings
10
Latest Filing
2026-06-30
Filing Quarter
Q2 2026
Portfolio Overview
JANA Partners Management, LP disclosed 10 positions worth $1.9B in its Form 13F-HR for Q2 2026, led by $MRCY (MERCURY SYSTEMS INC) at 25.5% of the equity portfolio, followed by $COO and $SPY. During the quarter the fund opened 1 new position and exited 1 and a full exit from $EHAB. The portfolio is most concentrated in Technology (34.8% of disclosed assets). All figures are sourced directly from JANA Partners Management, LP’s Form 13F-HR filing with the SEC under CIK 1998597.
AI Fund Analysis
StableSector Allocation
AUM History
Top Equity Holdings by Value
Quarterly Activity — Q2 2026
Click any card to unlockTop Holdings
- 47.8#1,761
Quality
$484.3M3,958,849 sh - 57.0#1,127
Quality
$256.9M3,582,480 sh - —
Quality
$256.1M342,965 sh - 51.7
Quality
$232.9M5,394,635 sh - 60.7
Quality
$179.6M3,662,080 sh - 60.2
Quality
$149.9M76,743 sh - 38.6
Quality
$122.3M6,747,707 sh - 43.6
Quality
$87.7M4,116,099 sh EVERPURE INC - CL A
—Quality
$77.9M989,196 sh- 48.3
Quality
$54.7M6,749,936 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 MERCURY SYSTEMS INC$MRCY | 47.8#1,761 | $484.3M | 3,958,849 |
 COOPER COMPANIES, INC.$COO | 57.0#1,127 | $256.9M | 3,582,480 |
 SPDR S&P 500 ETF TRUST$SPY | — | $256.1M | 342,965 |
 Lamb Weston Holdings, Inc.$LW | 51.7 | $232.9M | 5,394,635 |
 FISERV INC$FISV | 60.7 | $179.6M | 3,662,080 |
 MARKEL GROUP INC.$MKL | 60.2 | $149.9M | 76,743 |
 ALKAMI TECHNOLOGY, INC.$ALKT | 38.6 | $122.3M | 6,747,707 |
 Six Flags Entertainment Corporation/NEW$FUN | 43.6 | $87.7M | 4,116,099 |
| EVERPURE INC - CL A | — | $77.9M | 989,196 |
 Rapid7, Inc.$RPD | 48.3 | $54.7M | 6,749,936 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of JANA Partners Management, LP's 10 positions.
Showing top 10 of 10 holdings.
Sector Allocation
Technology
$661.2M
Other
$334.1M
Healthcare
$256.9M
Consumer Staples
$232.9M
Industrials
$179.6M
Financials
$149.9M
Communication Services
$87.7M
Full Holdings — JANA Partners Management, LP (Q2 2026)
All 10 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $MRCY | MERCURY SYSTEMS INC | $484.3M | 25.5% | -4% | 47.8 |
| 2 | $COO | COOPER COMPANIES, INC. | $256.9M | 13.5% | +0% | 57 |
| 3 | $SPY | SPDR S&P 500 ETF TRUST | $256.1M | 13.5% | -0% | — |
| 4 | $LW | Lamb Weston Holdings, Inc. | $232.9M | 12.3% | +8% | 51.7 |
| 5 | $FISV | FISERV INC | $179.6M | 9.4% | -17% | 60.7 |
| 6 | $MKL | MARKEL GROUP INC. | $149.9M | 7.9% | +2% | 60.2 |
| 7 | $ALKT | ALKAMI TECHNOLOGY, INC. | $122.3M | 6.4% | +24% | 38.6 |
| 8 | $FUN | Six Flags Entertainment Corporation/NEW | $87.7M | 4.6% | +0% | 43.6 |
| 9 | — | EVERPURE INC - CL A | $77.9M | 4.1% | NEW | — |
| 10 | $RPD | Rapid7, Inc. | $54.7M | 2.9% | +0% | 48.3 |
New Positions (1)
Exited Positions (1)
$EHAB Enhabit, Inc.Browse Top Institutional Investors
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