Coston McIsaac & Partners’s Mercury Systems MRCY Stock Holding History

Coston McIsaac & Partners’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	$28K	Hold	396	–	–	0.01%	411
2025 Q4	$28K	Hold	396	–	–	0.01%	398
2025 Q3	$30K	Hold	396	–	–	0.01%	375
2025 Q2	$21K	Hold	396	–	–	0.01%	418
2025 Q1	$17K	Hold	396	–	–	0.01%	420
2024 Q4	$16K	Hold	396	–	–	﹤0.01%	426
2024 Q3	$14	Hold	396	–	–	﹤0.01%	446
2024 Q2	$10K	Hold	396	–	–	﹤0.01%	470
2024 Q1	$11K	Hold	396	–	–	﹤0.01%	465
2023 Q4	$14K	Hold	396	–	–	﹤0.01%	435
2023 Q3	$14K	Hold	396	–	–	0.01%	423
2023 Q2	$13K	Hold	396	–	–	﹤0.01%	468
2023 Q1	$20K	Buy	+396	New	+$20K	0.01%	398

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 $4.6B AUM 16.08% 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

Coston McIsaac & Partners's MRCY Position: Q1 2026 in Review

Coston McIsaac & Partners held its Mercury Systems (MRCY) position steady in Q1 2026 at 396 shares worth $28K. The position accounts for 0.01% of the portfolio, ranked #411.

Coston McIsaac & Partners first reported a position in MRCY in Q1 2023 and has held it in 13 quarters since. The position peaked at $30K in Q3 2025. 357 funds tracked by Wall St. Rank hold MRCY as of Q1 2026.

Coston McIsaac & Partners held 396 shares of Mercury Systems worth $28K as of Q1 2026.
Coston McIsaac & Partners left its Mercury Systems share count unchanged in Q1 2026.
Mercury Systems made up 0.01% of Coston McIsaac & Partners's portfolio in Q1 2026, its #411 holding.
Coston McIsaac & Partners first reported a position in Mercury Systems in Q1 2023 and has held it in 13 quarters since.
Coston McIsaac & Partners's Mercury Systems position peaked at $30K in Q3 2025.
357 funds tracked by Wall St. Rank held Mercury Systems as of Q1 2026.

Based on Coston McIsaac & Partners's 13F filing for Q1 2026, filed 22 Apr 2026.