Ken Griffin
MESO

Ken Griffin’s Mesoblast MESO Stock Holding History

Ken Griffin’s Portfolio MESO Stock Details MESO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.32M Sell
85,959
-45,429
-35% -$756K ﹤0.01% 7027
2025
Q4 		$2.37M Buy
+131,388
New +$2.26M ﹤0.01% 5597
2025
Q3 		– Sell
-74,636
Closed -$1.09M – 13571
2025
Q2 		$813K Sell
74,636
-412,157
-85% -$4.62M ﹤0.01% 7542
2025
Q1 		$6.08M Buy
+486,793
New +$8.02M ﹤0.01% 3569
2024
Q4 		– Sell
-39,968
Closed -$443K – 15042
2024
Q3 		$327K Sell
39,968
-37,326
-48% -$253K ﹤0.01% 9154
2024
Q2 		$526K Buy
+77,294
New +$528K ﹤0.01% 7945
2024
Q1 		– Sell
-2,669
Closed -$5.68K – 15133
2023
Q4 		$5.87K Buy
+2,669
New +$6.36K ﹤0.01% 13395
2023
Q3 		– Sell
-28,143
Closed -$135K – 14771
2023
Q2 		$220K Sell
28,143
-390
-1% -$2.79K ﹤0.01% 9677
2023
Q1 		$188K Sell
28,533
-40,233
-59% -$266K ﹤0.01% 10290
2022
Q4 		$400K Buy
+68,766
New +$430K ﹤0.01% 8715
2022
Q1 		– Sell
-20,799
Closed -$177K – 14190
2021
Q4 		$200K Sell
20,799
-4,070
-16% -$47.3K ﹤0.01% 11853
2021
Q3 		$299K Buy
24,869
+3,032
+14% +$42.1K ﹤0.01% 11070
2021
Q2 		$327K Buy
21,837
+3,385
+18% +$53.1K ﹤0.01% 11054
2021
Q1 		$305K Buy
+18,452
New +$349K ﹤0.01% 10819
2020
Q4 		– Sell
-22,736
Closed -$560K – 11271
2020
Q3 		$844K Buy
22,736
+4,644
+26% +$146K ﹤0.01% 6340
2020
Q2 		$412K Buy
18,092
+9,152
+102% +$196K ﹤0.01% 7412
2020
Q1 		$78K Buy
+8,940
New +$137K ﹤0.01% 8801
2019
Q4 		– Sell
-5,856
Closed -$81K – 9488
2019
Q3 		$81K Buy
+5,856
New +$64.5K ﹤0.01% 8568
2018
Q4 		– Sell
-13,151
Closed -$215K – 9511
2018
Q3 		$215K Buy
+13,151
New +$167K ﹤0.01% 8110

Other funds holding MESO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
PM
Penbrook Management New York $157M AUM 46.57% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
MGP
M&G plc London, United Kingdom $20.1B AUM 16.62% 1-Year Est. Return

Ken Griffin's MESO Position: Q1 2026 in Review

Ken Griffin reduced its Mesoblast (MESO) stake by 35% in Q1 2026, selling an estimated $756K and leaving 85,959 shares worth $1.32M. The position accounts for ﹤0.01% of the portfolio, ranked #7027.

Ken Griffin first reported a position in MESO in Q3 2018 and has held it in 19 quarters since. The position peaked at $6.08M in Q1 2025. 69 funds tracked by Wall St. Rank hold MESO as of Q1 2026.

  • Ken Griffin held 85,959 shares of Mesoblast worth $1.32M as of Q1 2026.
  • Ken Griffin sold 45,429 Mesoblast shares in Q1 2026, an estimated $756K.
  • Mesoblast made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #7027 holding.
  • Ken Griffin first reported a position in Mesoblast in Q3 2018 and has held it in 19 quarters since.
  • Ken Griffin's Mesoblast position peaked at $6.08M in Q1 2025.
  • 69 funds tracked by Wall St. Rank held Mesoblast as of Q1 2026.

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