JANA Partners Management, LP

Director at MERCURY SYSTEMS INC · on record since Nov 30, 2023
See Remarks at MERCURY SYSTEMS INC · on record since Nov 30, 2023
Director at NEW RELIC, INC. · on record since Nov 13, 2023
See Remarks at NEW RELIC, INC. · on record since Nov 13, 2023
Director at TreeHouse Foods, Inc. · on record since Nov 9, 2023
10% owner at MERCURY SYSTEMS INC · on record since Feb 28, 2024
Director at Rapid7, Inc. · on record since Apr 24, 2025
See Remarks at Rapid7, Inc. · on record since Apr 24, 2025
10% owner at TreeHouse Foods, Inc. · on record since May 14, 2025
(See Remarks) at TreeHouse Foods, Inc. · on record since Nov 9, 2023
Director at Lamb Weston Holdings, Inc. · on record since Apr 9, 2026
See Remarks at Lamb Weston Holdings, Inc. · on record since Apr 9, 2026
10% owner at Rapid7, Inc. · on record since Jun 10, 2026

Insider trading activity of JANA Partners Management, LP

Transactions on record: 67; since Nov 9, 2023

Open-market buys: 25; $121M

Open-market sells: 9; $258M

Companies traded: 5; last filing Jun 10, 2026

Figures computed from official regulatory filings — .

Companies where JANA Partners Management, LP has traded

Rapid7, Inc.9 tx · $18.7M · Jun 10, 2026
Lamb Weston Holdings, Inc.6 tx · $16.1M · Apr 15, 2026
MERCURY SYSTEMS INC21 tx · $275.8M · Mar 4, 2026
27 tx · $68.5M · Feb 11, 2026
4 tx · Nov 13, 2023

Track record of JANA Partners Management, LP

Statistical track record

Free account

Open-market buys: 25

Last buy: Apr 15, 2026

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of JANA Partners Management, LP

Co-insiders of JANA Partners Management, LP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Rapid7, Inc.Listing on record	Jun 10, 2026	Other	15,208	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 15, 2026	Buy	100,000	42.12 USD	$4.2M	conv 29Cluster	SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 15, 2026	Buy	50,000	43.19 USD	$2.2M	conv 35Cluster	SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 9, 2026	Buy	136,000	40.89 USD	$5.6M	conv 30Cluster	SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 9, 2026	Buy	100,000	41.41 USD	$4.1M	conv 29Cluster	SEC
MERCURY SYSTEMS INCListing on record	Mar 4, 2026	Sell	-168,648	90.12 USD	$15.2M		SEC
MERCURY SYSTEMS INCListing on record	Mar 4, 2026	Sell	-182,510	94.05 USD	$17.2M		SEC
MERCURY SYSTEMS INCListing on record	Mar 4, 2026	Sell	-100,899	89.68 USD	$9M		SEC
MERCURY SYSTEMS INCListing on record	Feb 11, 2026	Sell	-400,000	81.00 USD	$32.4M		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	Other	-3,862,116	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	Exercise	7,727	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	Other	-7,727	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	ExerciseD (derivative)	-7,727	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-133,790	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-474,950	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	Sell	-1,959,221	24.48 USD	$48M		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-24,834	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-22,028	—	n/a (No price was disclosed in the filing)		SEC
Rapid7, Inc.Listing on record	Dec 4, 2025	Buy	41,545	15.71 USD	$652.7K	conv 40Cluster	SEC
Rapid7, Inc.Listing on record	Nov 25, 2025	Buy	150,000	14.13 USD	$2.1M	conv 41Cluster	SEC
Rapid7, Inc.Listing on record	Nov 25, 2025	Buy	50,000	15.01 USD	$750.5K	conv 40Cluster	SEC
MERCURY SYSTEMS INCListing on record	Nov 10, 2025	Sell	-1,000,000	75.45 USD	$75.5M		SEC
MERCURY SYSTEMS INCListing on record	Oct 24, 2025	Award	2,362	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Lamb Weston Holdings, Inc.Listing on record	Oct 3, 2025	Award	4,345	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MERCURY SYSTEMS INCListing on record	Aug 15, 2025	Sell	-797,000	65.42 USD	$52.1M		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Rapid7, Inc.Listing on record	Jun 10, 2026	Other	15,208	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 15, 2026	Buy	100,000	42.12 USD	$4.2M	conv 29Cluster	SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 15, 2026	Buy	50,000	43.19 USD	$2.2M	conv 35Cluster	SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 9, 2026	Buy	136,000	40.89 USD	$5.6M	conv 30Cluster	SEC
Lamb Weston Holdings, Inc.Listing on record	Apr 9, 2026	Buy	100,000	41.41 USD	$4.1M	conv 29Cluster	SEC
MERCURY SYSTEMS INCListing on record	Mar 4, 2026	Sell	-168,648	90.12 USD	$15.2M		SEC
MERCURY SYSTEMS INCListing on record	Mar 4, 2026	Sell	-182,510	94.05 USD	$17.2M		SEC
MERCURY SYSTEMS INCListing on record	Mar 4, 2026	Sell	-100,899	89.68 USD	$9M		SEC
MERCURY SYSTEMS INCListing on record	Feb 11, 2026	Sell	-400,000	81.00 USD	$32.4M		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	Other	-3,862,116	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	Exercise	7,727	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	Other	-7,727	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 11, 2026	ExerciseD (derivative)	-7,727	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-133,790	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-474,950	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	Sell	-1,959,221	24.48 USD	$48M		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-24,834	—	n/a (No price was disclosed in the filing)		SEC
TreeHouse Foods, Inc.Listing unverified	Feb 10, 2026	OtherD (derivative)	-22,028	—	n/a (No price was disclosed in the filing)		SEC
Rapid7, Inc.Listing on record	Dec 4, 2025	Buy	41,545	15.71 USD	$652.7K	conv 40Cluster	SEC
Rapid7, Inc.Listing on record	Nov 25, 2025	Buy	150,000	14.13 USD	$2.1M	conv 41Cluster	SEC
Rapid7, Inc.Listing on record	Nov 25, 2025	Buy	50,000	15.01 USD	$750.5K	conv 40Cluster	SEC
MERCURY SYSTEMS INCListing on record	Nov 10, 2025	Sell	-1,000,000	75.45 USD	$75.5M		SEC
MERCURY SYSTEMS INCListing on record	Oct 24, 2025	Award	2,362	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Lamb Weston Holdings, Inc.Listing on record	Oct 3, 2025	Award	4,345	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MERCURY SYSTEMS INCListing on record	Aug 15, 2025	Sell	-797,000	65.42 USD	$52.1M		SEC