Oppenheimer & Co
MRCY icon

Oppenheimer & Co’s Mercury Systems MRCY Stock Holding History

Oppenheimer & Co’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
Q3 		$808K Sell
9,740
-175
-2% -$16.9K 0.01% 1005
2026
Q2 		$1.21M Sell
9,915
-4,635
-32% -$442K 0.01% 851
2026
Q1 		$1.06M Sell
14,550
-7,250
-33% -$631K 0.01% 839
2025
Q4 		$1.59M Sell
21,800
-8,218
-27% -$611K 0.02% 612
2025
Q3 		$2.32M Sell
30,018
-2,767
-8% -$172K 0.03% 552
2025
Q2 		$1.77M Sell
32,785
-405
-1% -$19.7K 0.02% 622
2025
Q1 		$1.43M Sell
33,190
-1,260
-4% -$55.2K 0.02% 656
2024
Q4 		$1.45M Sell
34,450
-5,078
-13% -$194K 0.02% 652
2024
Q3 		$1.46M Buy
39,528
+2,530
+7% +$89K 0.02% 652
2024
Q2 		$999K Sell
36,998
-225
-0.6% -$6.56K 0.02% 774
2024
Q1 		$1.1M Sell
37,223
-1,337
-3% -$40.3K 0.02% 709
2023
Q4 		$1.41M Sell
38,560
-1,539
-4% -$55.6K 0.03% 603
2023
Q3 		$1.49M Sell
40,099
-1,318
-3% -$48.6K 0.03% 548
2023
Q2 		$1.43M Buy
41,417
+1,829
+5% +$78.1K 0.03% 573
2023
Q1 		$2.02M Buy
39,588
+10,488
+36% +$530K 0.04% 446
2022
Q4 		$1.3M Buy
29,100
+6,750
+30% +$319K 0.03% 573
2022
Q3 		$907K Buy
+22,350
New +$1.17M 0.02% 692
2022
Q2 		– Sell
-3,200
Closed -$206K – 1498
2022
Q1 		$206K Sell
3,200
-16,100
-83% -$956K ﹤0.01% 1341
2021
Q4 		$1.06M Buy
19,300
+2,146
+13% +$109K 0.02% 755
2021
Q3 		$813K Buy
+17,154
New +$953K 0.02% 818

Other funds holding MRCY

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Conestoga Capital Advisors
Conestoga Capital Advisors Wayne, Pennsylvania $3.31B AUM 6.07% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return
Emerald Advisers
Emerald Advisers Leola, Pennsylvania $3.64B AUM 71.19% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $64.1B AUM 28.9% 1-Year Est. Return
Bessemer Group
Bessemer Group Woodbridge, New Jersey $72.8B AUM 32.97% 1-Year Est. Return
Emerald Mutual Fund Advisers Trust
Emerald Mutual Fund Advisers Trust Leola, Pennsylvania $2.45B AUM 70.46% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Oppenheimer & Co's MRCY Position: Q3 2026 in Review

Oppenheimer & Co reduced its Mercury Systems (MRCY) stake by 1.8% in Q3 2026, selling an estimated $16.9K and leaving 9,740 shares worth $808K. The position accounts for 0.01% of the portfolio, ranked #1005.

Oppenheimer & Co first reported a position in MRCY in Q3 2021 and has held it in 20 quarters since. The position peaked at $2.32M in Q3 2025. 162 funds tracked by Wall St. Rank hold MRCY as of Q3 2026.

  • Oppenheimer & Co held 9,740 shares of Mercury Systems worth $808K as of Q3 2026.
  • Oppenheimer & Co sold 175 Mercury Systems shares in Q3 2026, an estimated $16.9K.
  • Mercury Systems made up 0.01% of Oppenheimer & Co's portfolio in Q3 2026, its #1005 holding.
  • Oppenheimer & Co first reported a position in Mercury Systems in Q3 2021 and has held it in 20 quarters since.
  • Oppenheimer & Co's Mercury Systems position peaked at $2.32M in Q3 2025.
  • 162 funds tracked by Wall St. Rank held Mercury Systems as of Q3 2026.

Based on Oppenheimer & Co's 13F filing for Q3 2026, filed 26 Oct 2026.