Renaissance Technologies’s Geron GERN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$2.68M Buy
1,799,521
+1,062,355
+144% +$1.61M ﹤0.01% 1721
2025
Q4
$973K Sell
737,166
-1,627,114
-69% -$2.04M ﹤0.01% 2296
2025
Q3
$3.24M Sell
2,364,280
-2,634,820
-53% -$3.51M ﹤0.01% 1739
2025
Q2
$7.05M Sell
4,999,100
-602,000
-11% -$853K 0.01% 1301
2025
Q1
$8.91M Buy
5,601,100
+4,148,400
+286% +$10.1M 0.01% 1065
2024
Q4
$5.14M Buy
+1,452,700
New +$5.8M 0.01% 1436
2024
Q3
Sell
-781,723
Closed -$3.31M 3659
2024
Q2
$3.31M Buy
+781,723
New +$3.05M 0.01% 1564
2023
Q1
Sell
-257,800
Closed -$624K 4127
2022
Q4
$624K Buy
257,800
+24,100
+10% +$54K ﹤0.01% 2816
2022
Q3
$547K Buy
233,700
+22,500
+11% +$50.4K ﹤0.01% 2880
2022
Q2
$327K Sell
211,200
-431,100
-67% -$609K ﹤0.01% 3402
2022
Q1
$874K Buy
642,300
+395,600
+160% +$441K ﹤0.01% 2815
2021
Q4
$301K Buy
+246,700
New +$353K ﹤0.01% 3340
2021
Q1
Sell
-982,500
Closed -$1.56M 3455
2020
Q4
$1.56M Buy
982,500
+961,624
+4,606% +$1.75M ﹤0.01% 2273
2020
Q3
$36K Sell
20,876
-7,300
-26% -$13.5K ﹤0.01% 3298
2020
Q2
$61K Buy
+28,176
New +$42.1K ﹤0.01% 3322
2020
Q1
Sell
-57,320
Closed -$78K 3560
2019
Q4
$78K Buy
+57,320
New +$82.8K ﹤0.01% 3346
2018
Q1
Sell
-872,115
Closed -$1.57M 3433
2017
Q4
$1.57M Buy
872,115
+222,235
+34% +$449K ﹤0.01% 2472
2017
Q3
$1.42M Buy
649,880
+126,500
+24% +$298K ﹤0.01% 2445
2017
Q2
$1.45M Buy
523,380
+162,233
+45% +$431K ﹤0.01% 2423
2017
Q1
$820K Buy
+361,147
New +$770K ﹤0.01% 2610
2016
Q4
Sell
-515,380
Closed -$1.17M 3319
2016
Q3
$1.17M Buy
515,380
+53,800
+12% +$139K ﹤0.01% 2496
2016
Q2
$1.24M Buy
461,580
+8,100
+2% +$23.6K ﹤0.01% 2441
2016
Q1
$1.32M Buy
+453,480
New +$1.36M ﹤0.01% 2446
2015
Q3
Sell
-1,505,880
Closed -$6.45M 3229
2015
Q2
$6.45M Buy
1,505,880
+70,735
+5% +$280K 0.01% 1273
2015
Q1
$5.41M Buy
1,435,145
+1,005,265
+234% +$3.41M 0.01% 1311
2014
Q4
$1.4M Buy
+429,880
New +$1.19M ﹤0.01% 1970
2013
Q4
Sell
-91,602
Closed -$290K 2908
2013
Q3
$290K Sell
91,602
-1,069,068
-92% -$1.75M ﹤0.01% 2478
2013
Q2
$1.65M Buy
+1,160,670
New +$1.26M ﹤0.01% 1682

Other funds holding GERN

Renaissance Technologies's GERN Position: Q1 2026 in Review

Renaissance Technologies increased its Geron (GERN) stake by 144% in Q1 2026, buying an estimated $1.61M and bringing the position to 1,799,521 shares worth $2.68M. The position accounts for ﹤0.01% of the portfolio, ranked #1721.

Renaissance Technologies first reported a position in GERN in Q2 2013 and has held it in 28 quarters since. The position peaked at $8.91M in Q1 2025. 256 funds tracked by Wall St. Rank hold GERN as of Q1 2026.

  • Renaissance Technologies held 1,799,521 shares of Geron worth $2.68M as of Q1 2026.
  • Renaissance Technologies bought 1,062,355 Geron shares in Q1 2026, an estimated $1.61M.
  • Geron made up ﹤0.01% of Renaissance Technologies's portfolio in Q1 2026, its #1721 holding.
  • Renaissance Technologies first reported a position in Geron in Q2 2013 and has held it in 28 quarters since.
  • Renaissance Technologies's Geron position peaked at $8.91M in Q1 2025.
  • 256 funds tracked by Wall St. Rank held Geron as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.