GERON CORP

Ticker: GERN CUSIP: 374163103 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 475,257 Value ($000) $627 Avg Close $1.25 Range $1.04 - $1.48

Q3 2025

Shares 479,430 Value ($000) $657 Avg Close $1.33 Range $1.09 - $1.55

Q2 2025

Shares 479,503 Value ($000) $676 Avg Close $1.42 Range $1.17 - $1.69

Q1 2025

Shares 484,962 Value ($000) $771 Avg Close $2.44 Range $1.46 - $3.68

Q4 2024

Shares 484,962 Value ($000) $1,717 Avg Close $3.99 Range $3.20 - $4.55

Q3 2024

Shares 432,116 Value ($000) $1,962 Avg Close $4.55 Range $4.15 - $5.06

Q2 2024

Shares 414,472 Value ($000) $1,757 Avg Close $3.90 Range $3.05 - $5.34

Q1 2024

Shares 417,682 Value ($000) $1,378 Avg Close $2.23 Range $1.64 - $3.50

Q4 2023

Shares 433,890 Value ($000) $916 Avg Close $1.94 Range $1.68 - $2.37

Q3 2023

Shares 514,557 Value ($000) $1,091 Avg Close $2.71 Range $2.08 - $3.41

Q2 2023

Shares 568,548 Value ($000) $1,825 Avg Close $2.85 Range $1.95 - $3.74

Q1 2023

Shares 485,535 Value ($000) $1,054 Avg Close $2.84 Range $2.12 - $3.84

Q4 2022

Shares 440,313 Value ($000) $1,066 Avg Close $2.24 Range $1.96 - $2.50

Q3 2022

Shares 434,166 Value ($000) $1,016 Avg Close $2.24 Range $1.54 - $3.06

Q2 2022

Shares 439,738 Value ($000) $682 Avg Close $1.41 Range $1.18 - $1.68

Q1 2022

Shares 370,800 Value ($000) $504 Avg Close $1.11 Range $0.99 - $1.63

Q4 2021

Shares 371,647 Value ($000) $453 Avg Close $1.43 Range $1.19 - $1.74

Q3 2021

Shares 359,054 Value ($000) $492 Avg Close $1.33 Range $1.20 - $1.50

Q2 2021

Shares 416,498 Value ($000) $587 Avg Close $1.45 Range $1.22 - $2.23

Q1 2021

Shares 433,218 Value ($000) $684 Avg Close $1.79 Range $1.49 - $2.36

Q4 2020

Shares 434,782 Value ($000) $691 Avg Close $1.82 Range $1.53 - $2.15

Q3 2020

Shares 434,782 Value ($000) $757 Avg Close $1.85 Range $1.56 - $2.34

Q2 2020

Shares 286,276 Value ($000) $624 Avg Close $1.49 Range $0.95 - $2.40

Q1 2020

Shares 286,276 Value ($000) $341 Avg Close $1.22 Range $0.75 - $1.50

Q4 2019

Shares 282,978 Value ($000) $385 Avg Close $1.45 Range $1.24 - $1.58

Q3 2019

Shares 272,286 Value ($000) $362 Avg Close $1.34 Range $1.08 - $1.64

Q2 2019

Shares 264,347 Value ($000) $373 Avg Close $1.65 Range $1.29 - $2.14

Q1 2019

Shares 264,347 Value ($000) $439 Avg Close $1.37 Range $0.98 - $1.90

Q4 2018

Shares 264,347 Value ($000) $264 Avg Close $1.52 Range $0.95 - $1.92

Q3 2018

Shares 258,430 Value ($000) $455 Avg Close $4.36 Range $1.50 - $6.99

Q2 2018

Shares 243,680 Value ($000) $836 Avg Close $3.82 Range $3.23 - $5.17

Q1 2018

Shares 226,430 Value ($000) $962 Avg Close $2.70 Range $1.78 - $6.68

Q4 2017

Shares 235,967 Value ($000) $425 Avg Close $2.02 Range $1.74 - $2.36

Q3 2017

Shares 240,167 Value ($000) $524 Avg Close $2.36 Range $1.95 - $3.01

Q2 2017

Shares 263,394 Value ($000) $730 Avg Close $2.66 Range $2.05 - $3.15

Q1 2017

Shares 297,394 Value ($000) $675 Avg Close $2.13 Range $1.87 - $2.45

Q4 2016

Shares 310,794 Value ($000) $643 Avg Close $2.11 Range $1.81 - $2.45

Q3 2016

Shares 318,794 Value ($000) $720 Avg Close $2.59 Range $1.84 - $3.13

Q2 2016

Shares 316,594 Value ($000) $848 Avg Close $2.91 Range $2.42 - $3.35

Q1 2016

Shares 334,908 Value ($000) $978 Avg Close $2.99 Range $2.30 - $4.77

Q4 2015

Shares 292,950 Value ($000) $1,418 Avg Close $4.02 Range $2.60 - $5.30

Q3 2015

Shares 287,727 Value ($000) $794 Avg Close $3.62 Range $2.60 - $4.67

Q2 2015

Shares 288,727 Value ($000) $1,236 Avg Close $3.96 Range $3.52 - $4.47

Q1 2015

Shares 286,484 Value ($000) $1,080 Avg Close $3.39 Range $2.70 - $4.49

Q4 2014

Shares 290,984 Value ($000) $946 Avg Close $2.77 Range $1.76 - $3.96

Q3 2014

Shares 289,746 Value ($000) $579 Avg Close $2.46 Range $1.98 - $3.12

Q2 2014

Shares 286,501 Value ($000) $920 Avg Close $2.09 Range $1.60 - $3.28

Q1 2014

Shares 280,701 Value ($000) $584 Avg Close $3.99 Range $1.31 - $5.60

Q4 2013

Shares 236,101 Value ($000) $1,119 Avg Close $4.29 Range $2.50 - $7.36

Q3 2013

Shares 235,101 Value ($000) $788 Avg Close $1.64 Range $1.20 - $3.73

Q2 2013

Shares 227,284 Value ($000) $341 Avg Close $1.08 Range $0.93 - $1.47

Q1 2013

Shares 229,122 Value ($000) $245 Avg Close $1.38 Range $0.99 - $1.68

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	475,257	$627	$1.25	$1.04 - $1.48
Q3 2025	479,430	$657	$1.33	$1.09 - $1.55
Q2 2025	479,503	$676	$1.42	$1.17 - $1.69
Q1 2025	484,962	$771	$2.44	$1.46 - $3.68
Q4 2024	484,962	$1,717	$3.99	$3.20 - $4.55
Q3 2024	432,116	$1,962	$4.55	$4.15 - $5.06
Q2 2024	414,472	$1,757	$3.90	$3.05 - $5.34
Q1 2024	417,682	$1,378	$2.23	$1.64 - $3.50
Q4 2023	433,890	$916	$1.94	$1.68 - $2.37
Q3 2023	514,557	$1,091	$2.71	$2.08 - $3.41
Q2 2023	568,548	$1,825	$2.85	$1.95 - $3.74
Q1 2023	485,535	$1,054	$2.84	$2.12 - $3.84
Q4 2022	440,313	$1,066	$2.24	$1.96 - $2.50
Q3 2022	434,166	$1,016	$2.24	$1.54 - $3.06
Q2 2022	439,738	$682	$1.41	$1.18 - $1.68
Q1 2022	370,800	$504	$1.11	$0.99 - $1.63
Q4 2021	371,647	$453	$1.43	$1.19 - $1.74
Q3 2021	359,054	$492	$1.33	$1.20 - $1.50
Q2 2021	416,498	$587	$1.45	$1.22 - $2.23
Q1 2021	433,218	$684	$1.79	$1.49 - $2.36
Q4 2020	434,782	$691	$1.82	$1.53 - $2.15
Q3 2020	434,782	$757	$1.85	$1.56 - $2.34
Q2 2020	286,276	$624	$1.49	$0.95 - $2.40
Q1 2020	286,276	$341	$1.22	$0.75 - $1.50
Q4 2019	282,978	$385	$1.45	$1.24 - $1.58
Q3 2019	272,286	$362	$1.34	$1.08 - $1.64
Q2 2019	264,347	$373	$1.65	$1.29 - $2.14
Q1 2019	264,347	$439	$1.37	$0.98 - $1.90
Q4 2018	264,347	$264	$1.52	$0.95 - $1.92
Q3 2018	258,430	$455	$4.36	$1.50 - $6.99
Q2 2018	243,680	$836	$3.82	$3.23 - $5.17
Q1 2018	226,430	$962	$2.70	$1.78 - $6.68
Q4 2017	235,967	$425	$2.02	$1.74 - $2.36
Q3 2017	240,167	$524	$2.36	$1.95 - $3.01
Q2 2017	263,394	$730	$2.66	$2.05 - $3.15
Q1 2017	297,394	$675	$2.13	$1.87 - $2.45
Q4 2016	310,794	$643	$2.11	$1.81 - $2.45
Q3 2016	318,794	$720	$2.59	$1.84 - $3.13
Q2 2016	316,594	$848	$2.91	$2.42 - $3.35
Q1 2016	334,908	$978	$2.99	$2.30 - $4.77
Q4 2015	292,950	$1,418	$4.02	$2.60 - $5.30
Q3 2015	287,727	$794	$3.62	$2.60 - $4.67
Q2 2015	288,727	$1,236	$3.96	$3.52 - $4.47
Q1 2015	286,484	$1,080	$3.39	$2.70 - $4.49
Q4 2014	290,984	$946	$2.77	$1.76 - $3.96
Q3 2014	289,746	$579	$2.46	$1.98 - $3.12
Q2 2014	286,501	$920	$2.09	$1.60 - $3.28
Q1 2014	280,701	$584	$3.99	$1.31 - $5.60
Q4 2013	236,101	$1,119	$4.29	$2.50 - $7.36
Q3 2013	235,101	$788	$1.64	$1.20 - $3.73
Q2 2013	227,284	$341	$1.08	$0.93 - $1.47
Q1 2013	229,122	$245	$1.38	$0.99 - $1.68