Marco Investment Management’s Mercury Systems MRCY Stock Holding History

Marco Investment Management’s Portfolio MRCY Stock Details MRCY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$325K	Buy	+2,655	New	+$253K	0.02%	181
2025 Q4	–	Sell	-2,655	Closed	-$205K	–	232
2025 Q3	$205K	Buy	+2,655	New	+$165K	0.02%	215
2022 Q1	–	Sell	-3,820	Closed	-$210K	–	220
2021 Q4	$210K	Buy	+3,820	New	+$193K	0.02%	211
2021 Q3	–	Sell	-3,190	Closed	-$211K	–	215
2021 Q2	$211K	Buy	3,190 +165	+5%	+$11.4K	0.02%	197
2021 Q1	$214K	Buy	3,025 +225	+8%	+$16.3K	0.03%	187
2020 Q4	$247K	Hold	2,800	–	–	0.04%	172
2020 Q3	$217K	Buy	+2,800	New	+$212K	0.04%	160

Other funds holding MRCY

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

JPM

JANA Partners Management New York $1.9B AUM 18.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

CCA

Conestoga Capital Advisors Wayne, Pennsylvania $4.6B AUM 16.08% 1-Year Est. Return

Marco Investment Management's MRCY Position: Q2 2026 in Review

Marco Investment Management opened a new position in Mercury Systems (MRCY) in Q2 2026: 2,655 shares worth $325K. The stake represents 0.02% of the portfolio and ranks #181 among its holdings. This is a return to the name: Marco Investment Management previously reported a position in MRCY as recently as Q3 2025.

Marco Investment Management first reported a position in MRCY in Q3 2020 and has held it in 7 quarters since. 392 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

Marco Investment Management held 2,655 shares of Mercury Systems worth $325K as of Q2 2026.
Mercury Systems was a new Marco Investment Management position in Q2 2026.
Mercury Systems made up 0.02% of Marco Investment Management's portfolio in Q2 2026, its #181 holding.
Marco Investment Management first reported a position in Mercury Systems in Q3 2020 and has held it in 7 quarters since.
392 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

Based on Marco Investment Management's 13F filing for Q2 2026, filed 3 Aug 2026.