Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$4.41M Buy
+2,960,047
New +$4.5M ﹤0.01% 1364
2025
Q4
Sell
-22,532
Closed -$30.9K 3145
2025
Q3
$30.9K Sell
22,532
-922,258
-98% -$1.23M ﹤0.01% 2761
2025
Q2
$1.33M Sell
944,790
-4,195,674
-82% -$5.95M ﹤0.01% 1736
2025
Q1
$8.17M Buy
5,140,464
+2,937,469
+133% +$7.15M 0.01% 847
2024
Q4
$7.8M Buy
2,202,995
+930,412
+73% +$3.72M 0.01% 889
2024
Q3
$5.78M Buy
+1,272,583
New +$5.79M 0.01% 942
2024
Q2
Sell
-119,500
Closed -$394K 2689
2024
Q1
$394K Sell
119,500
-1,958,997
-94% -$4.39M ﹤0.01% 2020
2023
Q4
$4.39M Sell
2,078,497
-3,782,148
-65% -$7.35M 0.01% 956
2023
Q3
$12.4M Sell
5,860,645
-3,949,774
-40% -$10.7M 0.03% 574
2023
Q2
$31.5M Buy
+9,810,419
New +$27.9M 0.06% 327
2022
Q4
Sell
-769,796
Closed -$1.8M 3106
2022
Q3
$1.8M Buy
+769,796
New +$1.72M ﹤0.01% 2079

Other funds holding GERN

Marshall Wace's GERN Position: Q1 2026 in Review

Marshall Wace opened a new position in Geron (GERN) in Q1 2026: 2,960,047 shares worth $4.41M. The stake represents ﹤0.01% of the portfolio and ranks #1364 among its holdings. This is a return to the name: Marshall Wace previously reported a position in GERN as recently as Q3 2025.

Marshall Wace first reported a position in GERN in Q3 2022 and has held it in 11 quarters since. The position peaked at $31.5M in Q2 2023. 256 funds tracked by Wall St. Rank hold GERN as of Q1 2026.

  • Marshall Wace held 2,960,047 shares of Geron worth $4.41M as of Q1 2026.
  • Geron was a new Marshall Wace position in Q1 2026.
  • Geron made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1364 holding.
  • Marshall Wace first reported a position in Geron in Q3 2022 and has held it in 11 quarters since.
  • Marshall Wace's Geron position peaked at $31.5M in Q2 2023.
  • 256 funds tracked by Wall St. Rank held Geron as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.