Oberweis Asset Management’s Mercury Systems MRCY Stock Holding History

Oberweis Asset 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 Q1	$28.5M	Sell	391,023 -23,017	-6%	-$2M	0.84%	34
2025 Q4	$30.2M	Buy	414,040 +15,540	+4%	+$1.16M	1.11%	16
2025 Q3	$30.8M	Hold	398,500	–	–	1.18%	17
2025 Q2	$21.5M	Sell	398,500 -13,800	-3%	-$672K	0.93%	29
2025 Q1	$17.8M	Buy	+412,300	New	+$18.1M	0.89%	35
2021 Q1	–	Sell	-4,790	Closed	-$422K	–	178
2020 Q4	$422K	Sell	4,790 -3,120	-39%	-$237K	0.11%	97
2020 Q3	$613K	Sell	7,910 -900	-10%	-$68.3K	0.21%	77
2020 Q2	$693K	Buy	8,810 +795	+10%	+$65.1K	0.27%	67
2020 Q1	$572K	Sell	8,015 -6,650	-45%	-$504K	0.32%	76
2019 Q4	$1.01M	Sell	14,665 -35,915	-71%	-$2.59M	0.34%	72
2019 Q3	$4.11M	Buy	+50,580	New	+$4M	0.93%	29
2017 Q1	–	Sell	-8,300	Closed	-$251K	–	147
2016 Q4	$251K	Sell	8,300 -4,600	-36%	-$131K	0.08%	118
2016 Q3	$317K	Buy	12,900 +4,600	+55%	+$110K	0.09%	115
2016 Q2	$206K	Buy	+8,300	New	+$178K	0.06%	162
2016 Q1	–	Sell	-35,200	Closed	-$646K	–	187
2015 Q4	$646K	Buy	35,200 +13,900	+65%	+$252K	0.18%	91
2015 Q3	$339K	Sell	21,300 -5,300	-20%	-$80.3K	0.1%	127
2015 Q2	$389K	Buy	26,600 +3,700	+16%	+$53.8K	0.1%	121
2015 Q1	$356K	Buy	+22,900	New	+$361K	0.1%	134

Other funds holding MRCY

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

JPM

JANA Partners Management New York $1.67B AUM 1.66% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

CCA

Conestoga Capital Advisors Wayne, Pennsylvania $5.01B AUM 6.26% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Oberweis Asset Management's MRCY Position: Q1 2026 in Review

Oberweis Asset Management reduced its Mercury Systems (MRCY) stake by 5.6% in Q1 2026, selling an estimated $2M and leaving 391,023 shares worth $28.5M. The position accounts for 0.84% of the portfolio, ranked #34.

Oberweis Asset Management first reported a position in MRCY in Q1 2015 and has held it in 18 quarters since. The position peaked at $30.8M in Q3 2025. 356 funds tracked by Wall St. Rank hold MRCY as of Q1 2026.

Oberweis Asset Management held 391,023 shares of Mercury Systems worth $28.5M as of Q1 2026.
Oberweis Asset Management sold 23,017 Mercury Systems shares in Q1 2026, an estimated $2M.
Mercury Systems made up 0.84% of Oberweis Asset Management's portfolio in Q1 2026, its #34 holding.
Oberweis Asset Management first reported a position in Mercury Systems in Q1 2015 and has held it in 18 quarters since.
Oberweis Asset Management's Mercury Systems position peaked at $30.8M in Q3 2025.
356 funds tracked by Wall St. Rank held Mercury Systems as of Q1 2026.

Based on Oberweis Asset Management's 13F filing for Q1 2026, filed 15 May 2026.