JANA Partners Management, LP

Holdings History for MERCURY SYSTEMS INC - Common Stock, par value $0.01 per share (MRCY)

Symbol: MRCY on Nasdaq
Investment type: Equity / Common Stock, par value $0.01 per share
Latest Disclosed Shares Owned: 4,114,618 shares
Security Ownership %: 6.9%

Shares, Excluding Options vs Price

Value, Excluding Options

JANA Partners Management, LP ownership in MERCURY SYSTEMS INC Common Stock, par value $0.01 per share (MRCY)

04 Mar 2026 - JANA Partners Management, LP has filed an SCHEDULE 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,114,618 shares of MERCURY SYSTEMS INC Common Stock, par value $0.01 per share (MRCY). This represents 6.9% ownership of the company. In their previous filing dated 10 Nov 2025, JANA Partners Management, LP had reported owning 4,966,675 shares, indicating a decrease of +17%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
JANA Partners Management, LP	6.9%	-18%	$330,527,264	4,114,618	-852,057	-17%	$80.33	13D/A	03 Mar 2026	04 Mar 2026, 21:46
JANA Partners Management, LP	8.3%	-17%	$384,420,645	4,966,675	-997,638	-17%	$77.40	13D/A	06 Nov 2025	10 Nov 2025, 18:30
JANA Partners Management, LP	10%		$316,108,589	5,964,313			$53.00	13D/A	13 Aug 2025	15 Aug 2025, 21:30

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	19%	-3.8%	$362,091,708	4,959,481	-1,000,000	-17%	$73.01	Q4 2025
30 Sep 2025	22%	-3%	$461,263,829	5,959,481	-793,932	-12%	$77.40	Q3 2025
30 Jun 2025	18%	-0.51%	$363,738,824	6,753,413	-188,152	-2.7%	$53.86	Q2 2025
31 Mar 2025	15%	0%	$299,112,036	6,941,565	0		$43.09	Q1 2025
31 Dec 2024	15%	0%	$291,545,730	6,941,565	0		$42.00	Q4 2024
30 Sep 2024	14%	+0.03%	$256,837,905	6,941,565	+16,669	+0.24%	$37.00	Q3 2024
30 Jun 2024	11%	0%	$186,902,943	6,924,896	0		$26.99	Q2 2024
31 Mar 2024	11%	+2.8%	$204,284,432	6,924,896	+1,713,761	+33%	$29.50	Q1 2024
31 Dec 2023	12%	+1.2%	$190,571,207	5,211,135	+505,886	+11%	$36.57	Q4 2023
30 Sep 2023	12%	0%	$174,517,685	4,705,249	0		$37.09	Q3 2023

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.