HALOZYME THERAPEUTICS INC

Ticker: HALO CUSIP: 40637H109 Class: EQTY

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

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

Q4 2025

Shares 110,960 Value ($000) $7,468 Avg Close $67.27 Range $61.23 - $76.30

Q3 2025

Shares 116,670 Value ($000) $8,557 Avg Close $66.43 Range $51.78 - $79.50

Q2 2025

Shares 121,300 Value ($000) $6,310 Avg Close $56.90 Range $47.50 - $70.51

Q1 2025

Shares 121,300 Value ($000) $7,740 Avg Close $58.09 Range $47.52 - $66.00

Q4 2024

Shares 118,318 Value ($000) $5,657 Avg Close $51.28 Range $42.01 - $62.13

Q3 2024

Shares 120,206 Value ($000) $6,881 Avg Close $57.33 Range $50.68 - $65.53

Q2 2024

Shares 123,940 Value ($000) $6,489 Avg Close $43.86 Range $37.73 - $53.00

Q1 2024

Shares 131,909 Value ($000) $5,366 Avg Close $37.49 Range $33.15 - $42.64

Q4 2023

Shares 138,898 Value ($000) $5,134 Avg Close $37.66 Range $32.83 - $42.82

Q3 2023

Shares 145,100 Value ($000) $5,543 Avg Close $40.96 Range $35.71 - $45.00

Q2 2023

Shares 163,581 Value ($000) $5,900 Avg Close $34.12 Range $29.85 - $38.80

Q1 2023

Shares 175,790 Value ($000) $6,713 Avg Close $46.91 Range $32.83 - $57.00

Q4 2022

Shares 180,451 Value ($000) $10,268 Avg Close $51.20 Range $39.17 - $59.46

Q3 2022

Shares 180,054 Value ($000) $7,119 Avg Close $44.20 Range $38.03 - $52.98

Q2 2022

Shares 181,827 Value ($000) $8,000 Avg Close $43.25 Range $36.95 - $48.58

Q1 2022

Shares 180,309 Value ($000) $7,191 Avg Close $35.62 Range $31.36 - $42.33

Q4 2021

Shares 195,973 Value ($000) $7,880 Avg Close $37.33 Range $31.79 - $41.20

Q3 2021

Shares 192,803 Value ($000) $7,843 Avg Close $41.81 Range $37.80 - $46.62

Q2 2021

Shares 194,267 Value ($000) $8,822 Avg Close $44.26 Range $38.65 - $51.57

Q1 2021

Shares 200,581 Value ($000) $8,362 Avg Close $45.65 Range $38.80 - $56.40

Q4 2020

Shares 201,360 Value ($000) $8,600 Avg Close $35.95 Range $25.70 - $44.53

Q3 2020

Shares 205,542 Value ($000) $5,402 Avg Close $27.85 Range $25.17 - $29.77

Q2 2020

Shares 204,396 Value ($000) $5,480 Avg Close $22.56 Range $15.89 - $27.22

Q1 2020

Shares 204,396 Value ($000) $3,677 Avg Close $18.98 Range $12.71 - $22.06

Q4 2019

Shares 218,645 Value ($000) $3,877 Avg Close $17.32 Range $14.61 - $19.73

Q3 2019

Shares 223,062 Value ($000) $3,460 Avg Close $16.47 Range $15.07 - $17.79

Q2 2019

Shares 220,397 Value ($000) $3,786 Avg Close $16.14 Range $14.65 - $17.43

Q1 2019

Shares 191,052 Value ($000) $3,076 Avg Close $16.20 Range $13.84 - $17.76

Q4 2018

Shares 195,436 Value ($000) $2,859 Avg Close $15.95 Range $13.24 - $18.76

Q3 2018

Shares 190,953 Value ($000) $3,470 Avg Close $17.52 Range $16.46 - $18.85

Q2 2018

Shares 190,964 Value ($000) $3,222 Avg Close $18.91 Range $16.74 - $20.54

Q1 2018

Shares 181,752 Value ($000) $3,561 Avg Close $19.37 Range $16.06 - $21.48

Q4 2017

Shares 188,124 Value ($000) $3,811 Avg Close $18.38 Range $16.58 - $21.13

Q3 2017

Shares 190,935 Value ($000) $3,317 Avg Close $13.54 Range $11.41 - $17.62

Q2 2017

Shares 193,466 Value ($000) $2,480 Avg Close $13.36 Range $11.51 - $15.05

Q1 2017

Shares 214,738 Value ($000) $2,783 Avg Close $12.64 Range $9.68 - $15.20

Q4 2016

Shares 224,838 Value ($000) $2,221 Avg Close $10.95 Range $8.18 - $14.38

Q3 2016

Shares 230,738 Value ($000) $2,787 Avg Close $10.22 Range $8.43 - $12.75

Q2 2016

Shares 228,638 Value ($000) $1,973 Avg Close $9.87 Range $7.70 - $12.33

Q1 2016

Shares 225,378 Value ($000) $2,134 Avg Close $9.41 Range $6.96 - $17.51

Q4 2015

Shares 196,510 Value ($000) $3,406 Avg Close $15.94 Range $12.80 - $18.65

Q3 2015

Shares 193,414 Value ($000) $2,598 Avg Close $20.08 Range $12.80 - $25.25

Q2 2015

Shares 193,714 Value ($000) $4,374 Avg Close $17.58 Range $13.91 - $22.85

Q1 2015

Shares 189,348 Value ($000) $2,704 Avg Close $14.42 Range $9.47 - $16.55

Q4 2014

Shares 191,948 Value ($000) $1,852 Avg Close $8.88 Range $7.51 - $10.00

Q3 2014

Shares 191,132 Value ($000) $1,739 Avg Close $9.52 Range $8.58 - $10.70

Q2 2014

Shares 188,748 Value ($000) $1,865 Avg Close $8.48 Range $6.88 - $12.97

Q1 2014

Shares 175,248 Value ($000) $2,226 Avg Close $14.84 Range $11.28 - $18.18

Q4 2013

Shares 160,748 Value ($000) $2,410 Avg Close $12.86 Range $9.33 - $16.36

Q3 2013

Shares 159,848 Value ($000) $1,765 Avg Close $8.33 Range $6.51 - $12.15

Q2 2013

Shares 154,805 Value ($000) $1,229 Avg Close $6.37 Range $5.03 - $8.49

Q1 2013

Shares 155,710 Value ($000) $898 Avg Close $6.48 Range $5.14 - $8.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	110,960	$7,468	$67.27	$61.23 - $76.30
Q3 2025	116,670	$8,557	$66.43	$51.78 - $79.50
Q2 2025	121,300	$6,310	$56.90	$47.50 - $70.51
Q1 2025	121,300	$7,740	$58.09	$47.52 - $66.00
Q4 2024	118,318	$5,657	$51.28	$42.01 - $62.13
Q3 2024	120,206	$6,881	$57.33	$50.68 - $65.53
Q2 2024	123,940	$6,489	$43.86	$37.73 - $53.00
Q1 2024	131,909	$5,366	$37.49	$33.15 - $42.64
Q4 2023	138,898	$5,134	$37.66	$32.83 - $42.82
Q3 2023	145,100	$5,543	$40.96	$35.71 - $45.00
Q2 2023	163,581	$5,900	$34.12	$29.85 - $38.80
Q1 2023	175,790	$6,713	$46.91	$32.83 - $57.00
Q4 2022	180,451	$10,268	$51.20	$39.17 - $59.46
Q3 2022	180,054	$7,119	$44.20	$38.03 - $52.98
Q2 2022	181,827	$8,000	$43.25	$36.95 - $48.58
Q1 2022	180,309	$7,191	$35.62	$31.36 - $42.33
Q4 2021	195,973	$7,880	$37.33	$31.79 - $41.20
Q3 2021	192,803	$7,843	$41.81	$37.80 - $46.62
Q2 2021	194,267	$8,822	$44.26	$38.65 - $51.57
Q1 2021	200,581	$8,362	$45.65	$38.80 - $56.40
Q4 2020	201,360	$8,600	$35.95	$25.70 - $44.53
Q3 2020	205,542	$5,402	$27.85	$25.17 - $29.77
Q2 2020	204,396	$5,480	$22.56	$15.89 - $27.22
Q1 2020	204,396	$3,677	$18.98	$12.71 - $22.06
Q4 2019	218,645	$3,877	$17.32	$14.61 - $19.73
Q3 2019	223,062	$3,460	$16.47	$15.07 - $17.79
Q2 2019	220,397	$3,786	$16.14	$14.65 - $17.43
Q1 2019	191,052	$3,076	$16.20	$13.84 - $17.76
Q4 2018	195,436	$2,859	$15.95	$13.24 - $18.76
Q3 2018	190,953	$3,470	$17.52	$16.46 - $18.85
Q2 2018	190,964	$3,222	$18.91	$16.74 - $20.54
Q1 2018	181,752	$3,561	$19.37	$16.06 - $21.48
Q4 2017	188,124	$3,811	$18.38	$16.58 - $21.13
Q3 2017	190,935	$3,317	$13.54	$11.41 - $17.62
Q2 2017	193,466	$2,480	$13.36	$11.51 - $15.05
Q1 2017	214,738	$2,783	$12.64	$9.68 - $15.20
Q4 2016	224,838	$2,221	$10.95	$8.18 - $14.38
Q3 2016	230,738	$2,787	$10.22	$8.43 - $12.75
Q2 2016	228,638	$1,973	$9.87	$7.70 - $12.33
Q1 2016	225,378	$2,134	$9.41	$6.96 - $17.51
Q4 2015	196,510	$3,406	$15.94	$12.80 - $18.65
Q3 2015	193,414	$2,598	$20.08	$12.80 - $25.25
Q2 2015	193,714	$4,374	$17.58	$13.91 - $22.85
Q1 2015	189,348	$2,704	$14.42	$9.47 - $16.55
Q4 2014	191,948	$1,852	$8.88	$7.51 - $10.00
Q3 2014	191,132	$1,739	$9.52	$8.58 - $10.70
Q2 2014	188,748	$1,865	$8.48	$6.88 - $12.97
Q1 2014	175,248	$2,226	$14.84	$11.28 - $18.18
Q4 2013	160,748	$2,410	$12.86	$9.33 - $16.36
Q3 2013	159,848	$1,765	$8.33	$6.51 - $12.15
Q2 2013	154,805	$1,229	$6.37	$5.03 - $8.49
Q1 2013	155,710	$898	$6.48	$5.14 - $8.59