IRIDIUM COMMUNICATIONS INC

Ticker: IRDM CUSIP: 46269C102 Class: Common Stock

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

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

Q4 2025

Shares 91,701 Value ($000) $1,594 Avg Close $17.67 Range $15.65 - $20.23

Q3 2025

Shares 91,971 Value ($000) $1,606 Avg Close $24.71 Range $17.08 - $33.34

Q2 2025

Shares 97,834 Value ($000) $2,952 Avg Close $26.00 Range $19.91 - $30.49

Q1 2025

Shares 98,738 Value ($000) $2,698 Avg Close $29.31 Range $26.54 - $34.45

Q4 2024

Shares 100,144 Value ($000) $2,906 Avg Close $29.74 Range $27.15 - $35.85

Q3 2024

Shares 103,994 Value ($000) $3,167 Avg Close $27.25 Range $25.03 - $31.36

Q2 2024

Shares 107,435 Value ($000) $2,860 Avg Close $28.16 Range $24.14 - $32.24

Q1 2024

Shares 112,686 Value ($000) $2,948 Avg Close $32.53 Range $25.27 - $41.40

Q4 2023

Shares 120,592 Value ($000) $4,964 Avg Close $39.59 Range $34.21 - $45.75

Q3 2023

Shares 127,981 Value ($000) $5,822 Avg Close $51.79 Range $45.24 - $61.84

Q2 2023

Shares 142,089 Value ($000) $8,827 Avg Close $61.86 Range $58.00 - $68.34

Q1 2023

Shares 145,863 Value ($000) $9,033 Avg Close $59.85 Range $51.40 - $65.41

Q4 2022

Shares 149,346 Value ($000) $7,676 Avg Close $50.20 Range $44.50 - $53.61

Q3 2022

Shares 149,423 Value ($000) $6,630 Avg Close $43.34 Range $36.54 - $47.32

Q2 2022

Shares 153,009 Value ($000) $5,747 Avg Close $37.30 Range $32.88 - $42.69

Q1 2022

Shares 151,747 Value ($000) $6,118 Avg Close $37.66 Range $31.73 - $42.40

Q4 2021

Shares 164,646 Value ($000) $6,798 Avg Close $40.39 Range $36.34 - $43.87

Q3 2021

Shares 162,205 Value ($000) $6,464 Avg Close $41.97 Range $35.83 - $48.95

Q2 2021

Shares 164,699 Value ($000) $6,586 Avg Close $38.85 Range $32.85 - $43.14

Q1 2021

Shares 180,159 Value ($000) $7,432 Avg Close $43.77 Range $34.98 - $54.65

Q4 2020

Shares 178,041 Value ($000) $7,001 Avg Close $31.42 Range $25.03 - $39.95

Q3 2020

Shares 177,820 Value ($000) $4,549 Avg Close $27.52 Range $23.65 - $30.55

Q2 2020

Shares 177,332 Value ($000) $4,511 Avg Close $23.45 Range $19.18 - $27.41

Q1 2020

Shares 150,544 Value ($000) $3,362 Avg Close $25.89 Range $16.87 - $32.08

Q4 2019

Shares 151,290 Value ($000) $3,728 Avg Close $23.96 Range $19.70 - $26.40

Q3 2019

Shares 154,346 Value ($000) $3,284 Avg Close $23.83 Range $21.11 - $27.22

Q2 2019

Shares 152,502 Value ($000) $3,547 Avg Close $24.89 Range $20.67 - $28.24

Q1 2019

Shares 147,010 Value ($000) $3,887 Avg Close $21.52 Range $17.79 - $27.62

Q4 2018

Shares 150,279 Value ($000) $2,773 Avg Close $20.53 Range $16.64 - $24.35

Q3 2018

Shares 146,933 Value ($000) $3,306 Avg Close $19.42 Range $15.90 - $22.50

Q2 2018

Shares 146,942 Value ($000) $2,366 Avg Close $13.60 Range $10.95 - $17.95

Q1 2018

Shares 127,657 Value ($000) $1,436 Avg Close $11.97 Range $10.75 - $13.25

Q4 2017

Shares 132,133 Value ($000) $1,559 Avg Close $11.56 Range $9.95 - $12.90

Q3 2017

Shares 133,660 Value ($000) $1,377 Avg Close $10.37 Range $9.68 - $11.50

Q2 2017

Shares 148,509 Value ($000) $1,641 Avg Close $10.45 Range $9.40 - $11.58

Q1 2017

Shares 162,471 Value ($000) $1,568 Avg Close $9.54 Range $7.80 - $11.54

Q4 2016

Shares 170,071 Value ($000) $1,633 Avg Close $8.92 Range $7.50 - $11.15

Q3 2016

Shares 174,671 Value ($000) $1,417 Avg Close $8.39 Range $6.80 - $9.37

Q2 2016

Shares 172,971 Value ($000) $1,536 Avg Close $8.22 Range $7.15 - $8.88

Q1 2016

Shares 174,043 Value ($000) $1,370 Avg Close $7.19 Range $6.14 - $8.53

Q4 2015

Shares 152,185 Value ($000) $1,280 Avg Close $7.62 Range $5.85 - $8.99

Q3 2015

Shares 149,525 Value ($000) $920 Avg Close $7.26 Range $5.98 - $9.35

Q2 2015

Shares 150,025 Value ($000) $1,364 Avg Close $10.28 Range $9.00 - $11.36

Q1 2015

Shares 147,682 Value ($000) $1,434 Avg Close $9.32 Range $8.24 - $9.94

Q4 2014

Shares 149,282 Value ($000) $1,455 Avg Close $9.35 Range $8.15 - $10.50

Q3 2014

Shares 148,646 Value ($000) $1,316 Avg Close $8.67 Range $7.85 - $9.54

Q2 2014

Shares 147,201 Value ($000) $1,245 Avg Close $7.52 Range $6.12 - $8.49

Q1 2014

Shares 116,701 Value ($000) $876 Avg Close $6.69 Range $5.95 - $7.95

Q4 2013

Shares 115,901 Value ($000) $726 Avg Close $6.04 Range $5.37 - $6.91

Q3 2013

Shares 115,401 Value ($000) $794 Avg Close $7.49 Range $6.35 - $9.22

Q2 2013

Shares 111,861 Value ($000) $868 Avg Close $7.03 Range $5.98 - $7.85

Q1 2013

Shares 86,210 Value ($000) $519 Avg Close $6.71 Range $5.90 - $7.34

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	91,701	$1,594	$17.67	$15.65 - $20.23
Q3 2025	91,971	$1,606	$24.71	$17.08 - $33.34
Q2 2025	97,834	$2,952	$26.00	$19.91 - $30.49
Q1 2025	98,738	$2,698	$29.31	$26.54 - $34.45
Q4 2024	100,144	$2,906	$29.74	$27.15 - $35.85
Q3 2024	103,994	$3,167	$27.25	$25.03 - $31.36
Q2 2024	107,435	$2,860	$28.16	$24.14 - $32.24
Q1 2024	112,686	$2,948	$32.53	$25.27 - $41.40
Q4 2023	120,592	$4,964	$39.59	$34.21 - $45.75
Q3 2023	127,981	$5,822	$51.79	$45.24 - $61.84
Q2 2023	142,089	$8,827	$61.86	$58.00 - $68.34
Q1 2023	145,863	$9,033	$59.85	$51.40 - $65.41
Q4 2022	149,346	$7,676	$50.20	$44.50 - $53.61
Q3 2022	149,423	$6,630	$43.34	$36.54 - $47.32
Q2 2022	153,009	$5,747	$37.30	$32.88 - $42.69
Q1 2022	151,747	$6,118	$37.66	$31.73 - $42.40
Q4 2021	164,646	$6,798	$40.39	$36.34 - $43.87
Q3 2021	162,205	$6,464	$41.97	$35.83 - $48.95
Q2 2021	164,699	$6,586	$38.85	$32.85 - $43.14
Q1 2021	180,159	$7,432	$43.77	$34.98 - $54.65
Q4 2020	178,041	$7,001	$31.42	$25.03 - $39.95
Q3 2020	177,820	$4,549	$27.52	$23.65 - $30.55
Q2 2020	177,332	$4,511	$23.45	$19.18 - $27.41
Q1 2020	150,544	$3,362	$25.89	$16.87 - $32.08
Q4 2019	151,290	$3,728	$23.96	$19.70 - $26.40
Q3 2019	154,346	$3,284	$23.83	$21.11 - $27.22
Q2 2019	152,502	$3,547	$24.89	$20.67 - $28.24
Q1 2019	147,010	$3,887	$21.52	$17.79 - $27.62
Q4 2018	150,279	$2,773	$20.53	$16.64 - $24.35
Q3 2018	146,933	$3,306	$19.42	$15.90 - $22.50
Q2 2018	146,942	$2,366	$13.60	$10.95 - $17.95
Q1 2018	127,657	$1,436	$11.97	$10.75 - $13.25
Q4 2017	132,133	$1,559	$11.56	$9.95 - $12.90
Q3 2017	133,660	$1,377	$10.37	$9.68 - $11.50
Q2 2017	148,509	$1,641	$10.45	$9.40 - $11.58
Q1 2017	162,471	$1,568	$9.54	$7.80 - $11.54
Q4 2016	170,071	$1,633	$8.92	$7.50 - $11.15
Q3 2016	174,671	$1,417	$8.39	$6.80 - $9.37
Q2 2016	172,971	$1,536	$8.22	$7.15 - $8.88
Q1 2016	174,043	$1,370	$7.19	$6.14 - $8.53
Q4 2015	152,185	$1,280	$7.62	$5.85 - $8.99
Q3 2015	149,525	$920	$7.26	$5.98 - $9.35
Q2 2015	150,025	$1,364	$10.28	$9.00 - $11.36
Q1 2015	147,682	$1,434	$9.32	$8.24 - $9.94
Q4 2014	149,282	$1,455	$9.35	$8.15 - $10.50
Q3 2014	148,646	$1,316	$8.67	$7.85 - $9.54
Q2 2014	147,201	$1,245	$7.52	$6.12 - $8.49
Q1 2014	116,701	$876	$6.69	$5.95 - $7.95
Q4 2013	115,901	$726	$6.04	$5.37 - $6.91
Q3 2013	115,401	$794	$7.49	$6.35 - $9.22
Q2 2013	111,861	$868	$7.03	$5.98 - $7.85
Q1 2013	86,210	$519	$6.71	$5.90 - $7.34