OMEROS CORP

Ticker: OMER CUSIP: 682143102 Class: COM

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

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

Q4 2025

Shares 4,055 Value ($000) $70 Avg Close $8.61 Range $4.06 - $17.65

Q3 2025

Shares 4,056 Value ($000) $17 Avg Close $3.97 Range $2.95 - $4.58

Q2 2025

Shares 4,053 Value ($000) $12 Avg Close $4.98 Range $2.97 - $9.16

Q1 2025

Shares 4,053 Value ($000) $33 Avg Close $8.83 Range $6.99 - $11.26

Q4 2024

Shares 4,053 Value ($000) $40 Avg Close $6.86 Range $3.75 - $13.60

Q3 2024

Shares 4,053 Value ($000) $16 Avg Close $4.27 Range $3.54 - $5.68

Q2 2024

Shares 4,053 Value ($000) $16 Avg Close $3.57 Range $2.61 - $4.41

Q1 2024

Shares 6,121 Value ($000) $21 Avg Close $3.80 Range $2.76 - $5.14

Q4 2023

Shares 10,020 Value ($000) $33 Avg Close $2.11 Range $0.92 - $3.81

Q3 2023

Shares 13,433 Value ($000) $39 Avg Close $4.01 Range $2.67 - $5.84

Q2 2023

Shares 20,251 Value ($000) $110 Avg Close $5.84 Range $4.35 - $7.80

Q1 2022

Shares 80,899 Value ($000) $486 Avg Close $6.24 Range $4.65 - $7.46

Q4 2021

Shares 82,708 Value ($000) $532 Avg Close $7.25 Range $5.45 - $9.78

Q3 2021

Shares 81,036 Value ($000) $1,117 Avg Close $14.97 Range $13.31 - $16.57

Q2 2021

Shares 83,147 Value ($000) $1,234 Avg Close $16.78 Range $13.86 - $19.39

Q1 2021

Shares 89,117 Value ($000) $1,586 Avg Close $19.45 Range $14.03 - $23.85

Q4 2020

Shares 89,439 Value ($000) $1,278 Avg Close $12.22 Range $9.87 - $15.68

Q3 2020

Shares 89,439 Value ($000) $904 Avg Close $12.87 Range $9.25 - $25.46

Q2 2020

Shares 78,496 Value ($000) $1,155 Avg Close $14.93 Range $11.84 - $17.21

Q1 2020

Shares 77,753 Value ($000) $1,040 Avg Close $13.30 Range $8.50 - $20.60

Q4 2019

Shares 72,098 Value ($000) $1,016 Avg Close $14.64 Range $12.63 - $17.38

Q3 2019

Shares 72,534 Value ($000) $1,184 Avg Close $17.15 Range $14.34 - $20.92

Q2 2019

Shares 71,668 Value ($000) $1,124 Avg Close $17.96 Range $14.73 - $20.16

Q1 2019

Shares 71,203 Value ($000) $1,237 Avg Close $14.42 Range $10.88 - $17.94

Q4 2018

Shares 72,195 Value ($000) $804 Avg Close $14.01 Range $10.30 - $24.87

Q3 2018

Shares 70,104 Value ($000) $1,711 Avg Close $22.30 Range $17.56 - $27.00

Q2 2018

Shares 70,129 Value ($000) $1,272 Avg Close $17.33 Range $10.60 - $25.20

Q1 2018

Shares 69,280 Value ($000) $774 Avg Close $14.04 Range $8.36 - $22.45

Q4 2017

Shares 71,709 Value ($000) $1,393 Avg Close $18.75 Range $12.45 - $24.45

Q3 2017

Shares 71,201 Value ($000) $1,539 Avg Close $21.19 Range $18.63 - $25.19

Q2 2017

Shares 73,794 Value ($000) $1,469 Avg Close $17.45 Range $13.56 - $27.09

Q1 2017

Shares 79,636 Value ($000) $1,204 Avg Close $10.94 Range $8.71 - $16.40

Q4 2016

Shares 83,436 Value ($000) $828 Avg Close $10.20 Range $7.20 - $14.15

Q3 2016

Shares 85,636 Value ($000) $956 Avg Close $11.41 Range $10.36 - $13.71

Q2 2016

Shares 77,636 Value ($000) $817 Avg Close $12.31 Range $9.46 - $16.38

Q1 2016

Shares 80,152 Value ($000) $1,230 Avg Close $12.15 Range $8.90 - $16.80

Q4 2015

Shares 70,144 Value ($000) $1,103 Avg Close $13.81 Range $10.69 - $16.52

Q3 2015

Shares 68,895 Value ($000) $755 Avg Close $15.57 Range $10.48 - $30.23

Q2 2015

Shares 69,095 Value ($000) $1,243 Avg Close $21.58 Range $17.62 - $26.64

Q1 2015

Shares 68,674 Value ($000) $1,513 Avg Close $22.83 Range $18.51 - $27.64

Q4 2014

Shares 62,974 Value ($000) $1,560 Avg Close $18.22 Range $11.18 - $25.10

Q3 2014

Shares 62,706 Value ($000) $798 Avg Close $14.00 Range $12.12 - $18.80

Q2 2014

Shares 61,951 Value ($000) $1,078 Avg Close $12.61 Range $9.76 - $18.01

Q1 2014

Shares 61,551 Value ($000) $743 Avg Close $12.28 Range $10.11 - $14.69

Q4 2013

Shares 53,951 Value ($000) $609 Avg Close $9.65 Range $6.92 - $13.76

Q3 2013

Shares 53,351 Value ($000) $520 Avg Close $5.96 Range $4.75 - $10.70

Q2 2013

Shares 51,951 Value ($000) $262 Avg Close $4.61 Range $3.65 - $5.70

Q1 2013

Shares 44,744 Value ($000) $184 Avg Close $5.53 Range $3.90 - $6.52

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,055	$70	$8.61	$4.06 - $17.65
Q3 2025	4,056	$17	$3.97	$2.95 - $4.58
Q2 2025	4,053	$12	$4.98	$2.97 - $9.16
Q1 2025	4,053	$33	$8.83	$6.99 - $11.26
Q4 2024	4,053	$40	$6.86	$3.75 - $13.60
Q3 2024	4,053	$16	$4.27	$3.54 - $5.68
Q2 2024	4,053	$16	$3.57	$2.61 - $4.41
Q1 2024	6,121	$21	$3.80	$2.76 - $5.14
Q4 2023	10,020	$33	$2.11	$0.92 - $3.81
Q3 2023	13,433	$39	$4.01	$2.67 - $5.84
Q2 2023	20,251	$110	$5.84	$4.35 - $7.80
Q1 2022	80,899	$486	$6.24	$4.65 - $7.46
Q4 2021	82,708	$532	$7.25	$5.45 - $9.78
Q3 2021	81,036	$1,117	$14.97	$13.31 - $16.57
Q2 2021	83,147	$1,234	$16.78	$13.86 - $19.39
Q1 2021	89,117	$1,586	$19.45	$14.03 - $23.85
Q4 2020	89,439	$1,278	$12.22	$9.87 - $15.68
Q3 2020	89,439	$904	$12.87	$9.25 - $25.46
Q2 2020	78,496	$1,155	$14.93	$11.84 - $17.21
Q1 2020	77,753	$1,040	$13.30	$8.50 - $20.60
Q4 2019	72,098	$1,016	$14.64	$12.63 - $17.38
Q3 2019	72,534	$1,184	$17.15	$14.34 - $20.92
Q2 2019	71,668	$1,124	$17.96	$14.73 - $20.16
Q1 2019	71,203	$1,237	$14.42	$10.88 - $17.94
Q4 2018	72,195	$804	$14.01	$10.30 - $24.87
Q3 2018	70,104	$1,711	$22.30	$17.56 - $27.00
Q2 2018	70,129	$1,272	$17.33	$10.60 - $25.20
Q1 2018	69,280	$774	$14.04	$8.36 - $22.45
Q4 2017	71,709	$1,393	$18.75	$12.45 - $24.45
Q3 2017	71,201	$1,539	$21.19	$18.63 - $25.19
Q2 2017	73,794	$1,469	$17.45	$13.56 - $27.09
Q1 2017	79,636	$1,204	$10.94	$8.71 - $16.40
Q4 2016	83,436	$828	$10.20	$7.20 - $14.15
Q3 2016	85,636	$956	$11.41	$10.36 - $13.71
Q2 2016	77,636	$817	$12.31	$9.46 - $16.38
Q1 2016	80,152	$1,230	$12.15	$8.90 - $16.80
Q4 2015	70,144	$1,103	$13.81	$10.69 - $16.52
Q3 2015	68,895	$755	$15.57	$10.48 - $30.23
Q2 2015	69,095	$1,243	$21.58	$17.62 - $26.64
Q1 2015	68,674	$1,513	$22.83	$18.51 - $27.64
Q4 2014	62,974	$1,560	$18.22	$11.18 - $25.10
Q3 2014	62,706	$798	$14.00	$12.12 - $18.80
Q2 2014	61,951	$1,078	$12.61	$9.76 - $18.01
Q1 2014	61,551	$743	$12.28	$10.11 - $14.69
Q4 2013	53,951	$609	$9.65	$6.92 - $13.76
Q3 2013	53,351	$520	$5.96	$4.75 - $10.70
Q2 2013	51,951	$262	$4.61	$3.65 - $5.70
Q1 2013	44,744	$184	$5.53	$3.90 - $6.52