EAM Investors’s Mercury Systems MRCY Stock Holding History

EAM Investors’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	$5.86M	Buy	+47,917	New	+$4.57M	0.52%	72
2025 Q4	–	Sell	-58,309	Closed	-$4.44M	–	324
2025 Q3	$4.44M	Buy	+58,309	New	+$3.63M	0.51%	86
2025 Q2	–	Sell	-71,883	Closed	-$3.1M	–	313
2025 Q1	$3.1M	Buy	+71,883	New	+$3.15M	0.54%	93
2019 Q4	–	Sell	-23,247	Closed	-$1.89M	–	293
2019 Q3	$1.89M	Sell	23,247 -351	-1%	-$27.7K	0.5%	69
2019 Q2	$1.66M	Sell	23,598 -2,169	-8%	-$151K	0.41%	96
2019 Q1	$1.65M	Buy	+25,767	New	+$1.49M	0.41%	100
2018 Q1	–	Sell	-41,928	Closed	-$2.15M	–	333
2017 Q4	$2.15M	Sell	41,928 -18,698	-31%	-$959K	0.39%	123
2017 Q3	$3.15M	Sell	60,626 -18,306	-23%	-$844K	0.42%	61
2017 Q2	$3.32M	Sell	78,932 -5,609	-7%	-$220K	0.55%	53
2017 Q1	$3.3M	Buy	+84,541	New	+$3.01M	0.52%	57
2016 Q3	–	Sell	-45,358	Closed	-$1.13M	–	334
2016 Q2	$1.13M	Sell	45,358 -2,615	-5%	-$56.2K	0.17%	234
2016 Q1	$974K	Sell	47,973 -9,057	-16%	-$158K	0.15%	245
2015 Q4	$1.05M	Buy	+57,030	New	+$1.03M	0.14%	270
2015 Q2	–	Sell	-77,000	Closed	-$1.2M	–	356
2015 Q1	$1.2M	Hold	77,000	–	–	0.14%	283
2014 Q4	$1.07M	Buy	+77,000	New	+$987K	0.15%	282

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

EAM Investors's MRCY Position: Q2 2026 in Review

EAM Investors opened a new position in Mercury Systems (MRCY) in Q2 2026: 47,917 shares worth $5.86M. The stake represents 0.52% of the portfolio and ranks #72 among its holdings. This is a return to the name: EAM Investors previously reported a position in MRCY as recently as Q3 2025.

EAM Investors first reported a position in MRCY in Q4 2014 and has held it in 15 quarters since. 393 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

EAM Investors held 47,917 shares of Mercury Systems worth $5.86M as of Q2 2026.
Mercury Systems was a new EAM Investors position in Q2 2026.
Mercury Systems made up 0.52% of EAM Investors's portfolio in Q2 2026, its #72 holding.
EAM Investors first reported a position in Mercury Systems in Q4 2014 and has held it in 15 quarters since.
393 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

Based on EAM Investors's 13F filing for Q2 2026, filed 13 Aug 2026.