Ken Griffin
CMU

Ken Griffin’s MFS High Yield Municipal Trust CMU Stock Holding History

Ken Griffin’s Portfolio CMU Stock Details CMU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$98K Buy
27,368
+8,972
+49% +$32K ﹤0.01% 12038
2025
Q4 		$64.6K Sell
18,396
-10,765
-37% -$37.6K ﹤0.01% 11907
2025
Q3 		$101K Buy
29,161
+7,969
+38% +$26.5K ﹤0.01% 11847
2025
Q2 		$70.6K Buy
+21,192
New +$71.1K ﹤0.01% 11582
2024
Q4 		– Sell
-10,434
Closed -$38.2K – 14611
2024
Q3 		$38.2K Sell
10,434
-10,684
-51% -$38K ﹤0.01% 12187
2024
Q2 		$72.4K Buy
21,118
+9,656
+84% +$32K ﹤0.01% 11338
2024
Q1 		$38.2K Buy
+11,462
New +$37.8K ﹤0.01% 12447

Other funds holding CMU

BI
Bulldog Investors Saddle Brook, New Jersey $445M AUM 2.14% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2B AUM 0.79% 1-Year Est. Return
AC
Almitas Capital Santa Monica, California $443M AUM 42.36% 1-Year Est. Return
IA
Icon Advisers Greenwood Village, Colorado $532M AUM 56.47% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
COLIM
City of London Investment Management London, United Kingdom $1.66B AUM 59.71% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
GC
Guggenheim Capital Chicago, Illinois $15.9B AUM 53.4% 1-Year Est. Return

Ken Griffin's CMU Position: Q1 2026 in Review

Ken Griffin increased its MFS High Yield Municipal Trust (CMU) stake by 49% in Q1 2026, buying an estimated $32K and bringing the position to 27,368 shares worth $98K. The position accounts for ﹤0.01% of the portfolio, ranked #12038.

Ken Griffin first reported a position in CMU in Q1 2024 and has held it in 7 quarters since. The position peaked at $101K in Q3 2025. 45 funds tracked by Wall St. Rank hold CMU as of Q1 2026.

  • Ken Griffin held 27,368 shares of MFS High Yield Municipal Trust worth $98K as of Q1 2026.
  • Ken Griffin bought 8,972 MFS High Yield Municipal Trust shares in Q1 2026, an estimated $32K.
  • MFS High Yield Municipal Trust made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #12038 holding.
  • Ken Griffin first reported a position in MFS High Yield Municipal Trust in Q1 2024 and has held it in 7 quarters since.
  • Ken Griffin's MFS High Yield Municipal Trust position peaked at $101K in Q3 2025.
  • 45 funds tracked by Wall St. Rank held MFS High Yield Municipal Trust as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.