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Harbour Investments’s Mercury Systems MRCY Stock Holding History

Harbour Investments’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 		$365 Buy
5
+4
+400% +$348 ﹤0.01% 4310
2025
Q4 		$73 Hold
1
– – ﹤0.01% 3762
2025
Q3 		$77 Buy
+1
New +$62 ﹤0.01% 3660
2021
Q4 		– Sell
-79
Closed -$4K – 3291
2021
Q3 		$4K Sell
79
-81
-51% -$4.5K ﹤0.01% 3081
2021
Q2 		$11K Hold
160
– – ﹤0.01% 2675
2021
Q1 		$11K Buy
+160
New +$11.6K ﹤0.01% 2564

Other funds holding MRCY

BlackRock
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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
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
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Harbour Investments's MRCY Position: Q1 2026 in Review

Harbour Investments increased its Mercury Systems (MRCY) stake by 400% in Q1 2026, buying an estimated $348 and bringing the position to 5 shares worth $365. The position accounts for ﹤0.01% of the portfolio, ranked #4310.

Harbour Investments first reported a position in MRCY in Q1 2021 and has held it in 6 quarters since. The position peaked at $11K in Q2 2021. 356 funds tracked by Wall St. Rank hold MRCY as of Q1 2026.

  • Harbour Investments held 5 shares of Mercury Systems worth $365 as of Q1 2026.
  • Harbour Investments bought 4 Mercury Systems shares in Q1 2026, an estimated $348.
  • Mercury Systems made up ﹤0.01% of Harbour Investments's portfolio in Q1 2026, its #4310 holding.
  • Harbour Investments first reported a position in Mercury Systems in Q1 2021 and has held it in 6 quarters since.
  • Harbour Investments's Mercury Systems position peaked at $11K in Q2 2021.
  • 356 funds tracked by Wall St. Rank held Mercury Systems as of Q1 2026.

Based on Harbour Investments's 13F filing for Q1 2026, filed 15 May 2026.