13F Filings/JANA Partners Management, LP

JANA Partners Management, LP

Hedge FundCIK0001998597LocationNEW YORK, NY 10106, United States

Long U.S. equity positions disclosed to the SEC on Form 13F-HR.

Latest filingQ2 2026Quarter ended30 Jun 2026Filed14 Aug 2026
Firm profile · Form ADV
SEC adviser registration

JANA Partners Management, LP, operating under the umbrella registration of JANA Partners LLC, provides discretionary investment advisory services to various private investment vehicles and managed accounts. These include the JSI Funds, JSI Benchmark Funds, and other funds pursuing different strategies. The provided excerpts do not detail specific investment strategies or methods of analysis.Summarised from the firm’s Form ADV Part 2A brochure.

CRD
151318 · 801-70627
Portfolio Turnover
48%
Of book traded, QoQ
Positions
10
Long U.S. equities
Top 10 Concentration
100%
Of reported value
QoQ Change
$1.8B
Value change
Assets under management
Form ADV RAUM · client mix · 13F over time
Regulatory AUM
$1.3B
Form ADV, as of Mar 2023
● 100% discretionary ($1.3B)
By client type
Pooled investment vehicles: $1.3B (100.0%) · 9 clients
Pooled investment vehicles
$1.3B · 100%
13F AUM over time
$1.9B
Q2 ’26 · 13F AUM
▲ 39%
12 quarters
Reported Holdings
Q2 2026 · upgrade to Pro for past quarters
↗
★ Position spotlightMRCYMERCURY SYS INC · 25.5% of bookThis highlighted stock and its 1Y chart are public
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Security⇅Shares⇅Market Value▼Est. Cost⇅Last Px⇅Est. Return⇅% Portfolio⇅Δ Shares⇅Action⇅
MERCURY SYS INC
MRCY· Industrials
3.96MSH$484.3M~$122.33$89.59▼26.8%25.5%NewNew
COOPER COS INC
COO· Health Care
3.58MSH$256.9M~$71.71$75.80▲5.7%13.5%NewNew
STATE STR SPDR S&P 500 ETF T
SPY
343KSH$256.1M~$746.77$763.47▲2.2%13.5%NewNew
LAMB WESTON HLDGS INC
LW· Consumer Staples
5.39MSH$232.9M~$43.18$54.80▲26.9%12.2%NewNew
FISERV INC
FISV· Financials
3.66MSH$179.6M~$49.05$52.96▲8.0%9.4%NewNew
MARKEL GROUP INC
MKL· Financials
77KSH$149.9M~$1953.01$1817.30▼6.9%7.9%NewNew
ALKAMI TECHNOLOGY INC
ALKT· Information Technology
6.75MSH$122.3M~$18.12$20.31▲12.1%6.4%NewNew
SIX FLAGS ENTERTAINMENT CORP
FUN· Consumer Discretionary
4.12MSH$87.7M~$21.30$16.91▼20.6%4.6%NewNew
EVERPURE INC
P· Information Technology
989KSH$77.9M~$78.79$100.44▲27.5%4.1%▼ 5.1%Reduced
RAPID7 INC
RPD· Information Technology
6.75MSH$54.7M~$8.10$12.19▲50.5%2.9%NewNew
MRCYMERCURY SYS INCNew
$484.3M· 25.5%· 3.96M SH· New· cost $122.33· last $89.59· ▼26.8%
Industrials · COM · SOLE
COOCOOPER COS INCNew
$256.9M· 13.5%· 3.58M SH· New· cost $71.71· last $75.80· ▲5.7%
Health Care · COM · SOLE
SPYSTATE STR SPDR S&P 500 ETF TNew
$256.1M· 13.5%· 343K SH· New· cost $746.77· last $763.47· ▲2.2%
TR UNIT · SOLE
LWLAMB WESTON HLDGS INCNew
$232.9M· 12.2%· 5.39M SH· New· cost $43.18· last $54.80· ▲26.9%
Consumer Staples · COM · SOLE
FISVFISERV INCNew
$179.6M· 9.4%· 3.66M SH· New· cost $49.05· last $52.96· ▲8.0%
Financials · COM · SOLE
MKLMARKEL GROUP INCNew
$149.9M· 7.9%· 77K SH· New· cost $1953.01· last $1817.30· ▼6.9%
Financials · COM · SOLE
ALKTALKAMI TECHNOLOGY INCNew
$122.3M· 6.4%· 6.75M SH· New· cost $18.12· last $20.31· ▲12.1%
Information Technology · COM · SOLE
FUNSIX FLAGS ENTERTAINMENT CORPNew
$87.7M· 4.6%· 4.12M SH· New· cost $21.30· last $16.91· ▼20.6%
Consumer Discretionary · COM · SOLE
PEVERPURE INCReduced
$77.9M· 4.1%· 989K SH· ▼ 5.1%· cost $78.79· last $100.44· ▲27.5%
Information Technology · CL A · SOLE
RPDRAPID7 INCNew
$54.7M· 2.9%· 6.75M SH· New· cost $8.10· last $12.19· ▲50.5%
Information Technology · COM · SOLE
Sector Breakdown
Q2 2026
Industrials25.5% · $484.3M
Financials17.3% · $329.5M
Health Care13.5% · $256.9M
Unclassified13.5% · $256.1M
Information Technology13.4% · $254.9M
Consumer Staples12.2% · $232.9M
Consumer Discretionary4.6% · $87.7M
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