O'Shaughnessy Asset Management’s Mercury Systems MRCY Stock Holding History

O'Shaughnessy 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 Q2	$425K	Sell	3,471 -393	-10%	-$37.4K	﹤0.01%	1671
2026 Q1	$282K	Sell	3,864 -2,866	-43%	-$250K	﹤0.01%	1811
2025 Q4	$491K	Buy	6,730 +995	+17%	+$74K	﹤0.01%	1515
2025 Q3	$444K	Buy	+5,735	New	+$357K	﹤0.01%	1554
2017 Q2	–	Sell	-8,436	Closed	-$329K	–	937
2017 Q1	$329K	Sell	8,436 -18,053	-68%	-$642K	0.01%	418
2016 Q4	$800K	Sell	26,489 -5,911	-18%	-$168K	0.02%	296
2016 Q3	$796K	Sell	32,400 -4,991	-13%	-$120K	0.02%	295
2016 Q2	$930K	Buy	37,391 +5,668	+18%	+$122K	0.02%	278
2016 Q1	$642K	Buy	31,723 +16,877	+114%	+$295K	0.02%	315
2015 Q4	$273K	Buy	+14,846	New	+$269K	0.01%	443

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 $3.38T AUM 44.17% 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

O'Shaughnessy Asset Management's MRCY Position: Q2 2026 in Review

O'Shaughnessy Asset Management reduced its Mercury Systems (MRCY) stake by 10% in Q2 2026, selling an estimated $37.4K and leaving 3,471 shares worth $425K. The position accounts for ﹤0.01% of the portfolio, ranked #1671.

O'Shaughnessy Asset Management first reported a position in MRCY in Q4 2015 and has held it in 10 quarters since. The position peaked at $930K in Q2 2016. 392 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

O'Shaughnessy Asset Management held 3,471 shares of Mercury Systems worth $425K as of Q2 2026.
O'Shaughnessy Asset Management sold 393 Mercury Systems shares in Q2 2026, an estimated $37.4K.
Mercury Systems made up ﹤0.01% of O'Shaughnessy Asset Management's portfolio in Q2 2026, its #1671 holding.
O'Shaughnessy Asset Management first reported a position in Mercury Systems in Q4 2015 and has held it in 10 quarters since.
O'Shaughnessy Asset Management's Mercury Systems position peaked at $930K in Q2 2016.
392 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

Based on O'Shaughnessy Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.