SEC Form 13F

JANA Partners Management, LP 13F Holdings

Inspect JANA Partners Management, LP's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-08-15T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-08-15
Reported value
$1,902,301,416
Positions
10

Disclosed positions

MERCURY SYS INCMRCYCOM$484,285,9983,958,849SHNone
COOPER COS INCCOOCOM$256,899,6413,582,480SHNone
STATE STR SPDR S&P 500 ETF TSPYTR UNIT$256,115,973342,965SHNone
LAMB WESTON HLDGS INCLWCOM$232,940,3395,394,635SHNone
FISERV INCFISVCOM$179,625,0243,662,080SHNone
MARKEL GROUP INCMKLCOM$149,879,84676,743SHNone
ALKAMI TECHNOLOGY INCALKTCOM$122,268,4516,747,707SHNone
SIX FLAGS ENTERTAINMENT CORPFUNCOM$87,672,9094,116,099SHNone
EVERPURE INCPCL A$77,938,753989,196SHNone
RAPID7 INCRPDCOM$54,674,4826,749,936SHNone

Largest 50 positions by reported value; the filing may contain more positions.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 0 positions lack a resolved ticker and 0 positions are put or call entries.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.