California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Mayville Engineering Co MEC Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio MEC Stock Details MEC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$6.89K Sell
184
-524
-74% -$14K ﹤0.01% 2418
2026
Q1 		$12.7K Sell
708
-97
-12% -$1.87K ﹤0.01% 2585
2025
Q4 		$15.1K Sell
805
-118
-13% -$1.92K ﹤0.01% 2634
2025
Q3 		$12.7K Buy
923
+1
+0.1% +$15 ﹤0.01% 2744
2025
Q2 		$14.7K Hold
922
– – ﹤0.01% 2593
2025
Q1 		$12.4K Hold
922
– – ﹤0.01% 2694
2024
Q4 		$14.5K Hold
922
– – ﹤0.01% 2731
2024
Q3 		$19.4K Hold
922
– – ﹤0.01% 2621
2024
Q2 		$15.4K Sell
922
-205
-18% -$3.1K ﹤0.01% 2702
2024
Q1 		$16.1K Sell
1,127
-718
-39% -$9.37K ﹤0.01% 2801
2023
Q4 		$26.6K Sell
1,845
-628
-25% -$7.79K ﹤0.01% 2830
2023
Q3 		$27.1K Sell
2,473
-1,202
-33% -$13.9K ﹤0.01% 2928
2023
Q2 		$45.8K Buy
+3,675
New +$46.4K ﹤0.01% 2955
2022
Q2 		– Sell
-3,867
Closed -$36K – 3240
2022
Q1 		$36K Sell
3,867
-1,010
-21% -$11.5K ﹤0.01% 3105
2021
Q4 		$73K Buy
4,877
+109
+2% +$1.8K ﹤0.01% 3082
2021
Q3 		$90K Sell
4,768
-7,583
-61% -$130K ﹤0.01% 3022
2021
Q2 		$248K Buy
12,351
+714
+6% +$12.6K ﹤0.01% 2958
2021
Q1 		$167K Buy
11,637
+1,473
+14% +$21.7K ﹤0.01% 2960
2020
Q4 		$136K Hold
10,164
– – ﹤0.01% 2971
2020
Q3 		$93K Buy
10,164
+344
+4% +$2.91K ﹤0.01% 2978
2020
Q2 		$78K Hold
9,820
– – ﹤0.01% 2977
2020
Q1 		$60K Buy
9,820
+112
+1% +$841 ﹤0.01% 2895
2019
Q4 		$91K Hold
9,708
– – ﹤0.01% 2935
2019
Q3 		$128K Hold
9,708
– – ﹤0.01% 2906
2019
Q2 		$134K Buy
+9,708
New +$150K ﹤0.01% 2942

Other funds holding MEC

PCM
Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
SPPAM
Summit Partners Public Asset Management Boston, Massachusetts $5.69B AUM 259.25% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s MEC Position: Q2 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its Mayville Engineering Co (MEC) stake by 74% in Q2 2026, selling an estimated $14K and leaving 184 shares worth $6.89K. The position accounts for ﹤0.01% of the portfolio, ranked #2418.

California State Teachers Retirement System (CalSTRS) first reported a position in MEC in Q2 2019 and has held it in 25 quarters since. The position peaked at $248K in Q2 2021. 155 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

  • California State Teachers Retirement System (CalSTRS) held 184 shares of Mayville Engineering Co worth $6.89K as of Q2 2026.
  • California State Teachers Retirement System (CalSTRS) sold 524 Mayville Engineering Co shares in Q2 2026, an estimated $14K.
  • Mayville Engineering Co made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #2418 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Mayville Engineering Co in Q2 2019 and has held it in 25 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Mayville Engineering Co position peaked at $248K in Q2 2021.
  • 155 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2026, filed 24 Aug 2026.