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Israel Englander’s Mercury Systems MRCY Stock Holding History

Israel Englander’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
2023
Q3 		– Sell
-20,000
Closed -$692K – 6392
2023
Q2 		$692K Buy
+20,000
New +$854K ﹤0.01% 4316

Other funds holding MRCY

BlackRock
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
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Goldman Sachs
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

Israel Englander's MRCY Position: Q2 2026 in Review

Israel Englander reduced its Mercury Systems (MRCY) stake by 82% in Q2 2026, selling an estimated $1.25M and leaving 2,901 shares worth $355K. The position accounts for ﹤0.01% of the portfolio, ranked #5020.

Israel Englander first reported a position in MRCY in Q3 2013 and has held it in 42 quarters since. The position peaked at $43M in Q4 2024. 391 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

  • Israel Englander held 2,901 shares of Mercury Systems worth $355K as of Q2 2026.
  • Israel Englander sold 13,110 Mercury Systems shares in Q2 2026, an estimated $1.25M.
  • Mercury Systems made up ﹤0.01% of Israel Englander's portfolio in Q2 2026, its #5020 holding.
  • Israel Englander first reported a position in Mercury Systems in Q3 2013 and has held it in 42 quarters since.
  • Israel Englander's Mercury Systems position peaked at $43M in Q4 2024.
  • 391 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.