California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Mercury Systems MRCY Stock Holding History

California State Teachers Retirement System (CalSTRS)’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 		$4.63M Buy
63,570
+12,346
+24% +$1.08M ﹤0.01% 1062
2025
Q4 		$3.74M Buy
51,224
+2,697
+6% +$201K ﹤0.01% 1082
2025
Q3 		$3.76M Buy
48,527
+1,679
+4% +$104K ﹤0.01% 1079
2025
Q2 		$2.52M Buy
46,848
+416
+0.9% +$20.3K ﹤0.01% 1253
2025
Q1 		$2M Sell
46,432
-978
-2% -$42.8K ﹤0.01% 1340
2024
Q4 		$1.99M Sell
47,410
-630
-1% -$24K ﹤0.01% 1413
2024
Q3 		$1.78M Sell
48,040
-1,500
-3% -$52.8K ﹤0.01% 1465
2024
Q2 		$1.34M Sell
49,540
-3,882
-7% -$113K ﹤0.01% 1606
2024
Q1 		$1.58M Sell
53,422
-2,954
-5% -$89K ﹤0.01% 1557
2023
Q4 		$2.06M Sell
56,376
-968
-2% -$34.9K ﹤0.01% 1420
2023
Q3 		$2.13M Sell
57,344
-5,311
-8% -$196K ﹤0.01% 1356
2023
Q2 		$2.17M Sell
62,655
-1,602
-2% -$68.4K ﹤0.01% 1443
2023
Q1 		$3.28M Sell
64,257
-669
-1% -$33.8K ﹤0.01% 1184
2022
Q4 		$2.9M Sell
64,926
-2,334
-3% -$110K ﹤0.01% 1255
2022
Q3 		$2.73M Sell
67,260
-312
-0.5% -$16.4K ﹤0.01% 1250
2022
Q2 		$4.35M Sell
67,572
-4,762
-7% -$284K 0.01% 1032
2022
Q1 		$4.66M Sell
72,334
-5,931
-8% -$352K 0.01% 1095
2021
Q4 		$4.31M Sell
78,265
-15,379
-16% -$779K 0.01% 1251
2021
Q3 		$4.44M Sell
93,644
-336
-0.4% -$18.7K 0.01% 1210
2021
Q2 		$6.23M Sell
93,980
-3,446
-4% -$238K 0.01% 1048
2021
Q1 		$6.88M Sell
97,426
-405
-0.4% -$29.3K 0.01% 989
2020
Q4 		$8.62M Buy
97,831
+1,824
+2% +$139K 0.01% 824
2020
Q3 		$7.44M Buy
96,007
+2,422
+3% +$184K 0.01% 798
2020
Q2 		$7.36M Buy
93,585
+11,117
+13% +$910K 0.01% 769
2020
Q1 		$5.88M Sell
82,468
-408
-0.5% -$30.9K 0.01% 753
2019
Q4 		$5.73M Sell
82,876
-1,674
-2% -$121K 0.01% 947
2019
Q3 		$6.86M Buy
84,550
+2,369
+3% +$187K 0.01% 817
2019
Q2 		$5.78M Buy
82,181
+10,219
+14% +$709K 0.01% 921
2019
Q1 		$4.61M Sell
71,962
-1,553
-2% -$89.5K 0.01% 1008
2018
Q4 		$3.48M Buy
73,515
+1,591
+2% +$77.6K 0.01% 1118
2018
Q3 		$3.98M Buy
71,924
+59
+0.1% +$2.86K 0.01% 1170
2018
Q2 		$2.73M Buy
71,865
+481
+0.7% +$18.6K 0.01% 1408
2018
Q1 		$3.45M Sell
71,384
-2,502
-3% -$119K 0.01% 1181
2017
Q4 		$3.79M Sell
73,886
-1,165
-2% -$59.8K 0.01% 1180
2017
Q3 		$3.89M Sell
75,051
-7,979
-10% -$368K 0.01% 1150
2017
Q2 		$3.5M Sell
83,030
-8,978
-10% -$353K 0.01% 1251
2017
Q1 		$3.59M Buy
92,008
+11,700
+15% +$416K 0.01% 1281
2016
Q4 		$2.43M Sell
80,308
-2,200
-3% -$62.5K ﹤0.01% 1536
2016
Q3 		$2.03M Buy
82,508
+800
+1% +$19.2K ﹤0.01% 1635
2016
Q2 		$2.03M Buy
81,708
+9,240
+13% +$199K ﹤0.01% 1611
2016
Q1 		$1.47M Buy
72,468
+9,126
+14% +$160K ﹤0.01% 1784
2015
Q4 		$1.16M Buy
63,342
+1,084
+2% +$19.6K ﹤0.01% 1889
2015
Q3 		$991K Sell
62,258
-200
-0.3% -$3.03K ﹤0.01% 1995
2015
Q2 		$914K Buy
62,458
+1,714
+3% +$24.9K ﹤0.01% 2166
2015
Q1 		$945K Sell
60,744
-900
-1% -$14.2K ﹤0.01% 2053
2014
Q4 		$858K Buy
61,644
+262
+0.4% +$3.36K ﹤0.01% 2154
2014
Q3 		$676K Buy
61,382
+649
+1% +$7.3K ﹤0.01% 2259
2014
Q2 		$689K Buy
60,733
+2,200
+4% +$27.5K ﹤0.01% 2307
2014
Q1 		$773K Hold
58,533
– – ﹤0.01% 2154
2013
Q4 		$641K Buy
58,533
+400
+0.7% +$4K ﹤0.01% 2262
2013
Q3 		$581K Buy
58,133
+1,802
+3% +$17.1K ﹤0.01% 2278
2013
Q2 		$519K Buy
+56,331
New +$487K ﹤0.01% 2271

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

California State Teachers Retirement System (CalSTRS)'s MRCY Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) increased its Mercury Systems (MRCY) stake by 24% in Q1 2026, buying an estimated $1.08M and bringing the position to 63,570 shares worth $4.63M. The position accounts for ﹤0.01% of the portfolio, ranked #1062.

California State Teachers Retirement System (CalSTRS) first reported a position in MRCY in Q2 2013 and has held it in 52 quarters since. The position peaked at $8.62M in Q4 2020. 356 funds tracked by Wall St. Rank hold MRCY as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 63,570 shares of Mercury Systems worth $4.63M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) bought 12,346 Mercury Systems shares in Q1 2026, an estimated $1.08M.
  • Mercury Systems made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #1062 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Mercury Systems in Q2 2013 and has held it in 52 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Mercury Systems position peaked at $8.62M in Q4 2020.
  • 356 funds tracked by Wall St. Rank held Mercury Systems as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.