IRIDIUM COMMUNICATIONS INC

Ticker: IRDM CUSIP: 46269C102 Class: Common Stock

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 234,958 Value ($000) $4,084 Avg Close $17.67 Range $15.65 - $20.23

Q3 2025

Shares 227,731 Value ($000) $3,976 Avg Close $24.71 Range $17.08 - $33.34

Q2 2025

Shares 199,611 Value ($000) $6,022 Avg Close $26.00 Range $19.91 - $30.49

Q1 2025

Shares 203,961 Value ($000) $5,572 Avg Close $29.31 Range $26.54 - $34.45

Q4 2024

Shares 261,138 Value ($000) $7,578 Avg Close $29.74 Range $27.15 - $35.85

Q3 2024

Shares 290,951 Value ($000) $8,859 Avg Close $27.25 Range $25.03 - $31.36

Q2 2024

Shares 299,698 Value ($000) $7,978 Avg Close $28.16 Range $24.14 - $32.24

Q1 2024

Shares 326,791 Value ($000) $8,549 Avg Close $32.53 Range $25.27 - $41.40

Q4 2023

Shares 438,526 Value ($000) $18,050 Avg Close $39.59 Range $34.21 - $45.75

Q3 2023

Shares 594,853 Value ($000) $27,060 Avg Close $51.79 Range $45.24 - $61.84

Q2 2023

Shares 443,647 Value ($000) $27,559 Avg Close $61.86 Range $58.00 - $68.34

Q1 2023

Shares 437,330 Value ($000) $27,084 Avg Close $59.85 Range $51.40 - $65.41

Q4 2022

Shares 357,723 Value ($000) $18,387 Avg Close $50.20 Range $44.50 - $53.61

Q3 2022

Shares 353,924 Value ($000) $15,704 Avg Close $43.34 Range $36.54 - $47.32

Q2 2022

Shares 359,832 Value ($000) $13,515 Avg Close $37.30 Range $32.88 - $42.69

Q1 2022

Shares 390,089 Value ($000) $15,728 Avg Close $37.66 Range $31.73 - $42.40

Q4 2021

Shares 405,337 Value ($000) $16,736 Avg Close $40.39 Range $36.34 - $43.87

Q3 2021

Shares 411,676 Value ($000) $16,405 Avg Close $41.97 Range $35.83 - $48.95

Q2 2021

Shares 367,689 Value ($000) $14,704 Avg Close $38.85 Range $32.85 - $43.14

Q1 2021

Shares 371,494 Value ($000) $15,324 Avg Close $43.77 Range $34.98 - $54.65

Q4 2020

Shares 378,978 Value ($000) $14,903 Avg Close $31.42 Range $25.03 - $39.95

Q3 2020

Shares 351,588 Value ($000) $8,994 Avg Close $27.52 Range $23.65 - $30.55

Q2 2020

Shares 290,166 Value ($000) $7,382 Avg Close $23.45 Range $19.18 - $27.41

Q1 2020

Shares 295,461 Value ($000) $6,598 Avg Close $25.89 Range $16.87 - $32.08

Q4 2019

Shares 278,968 Value ($000) $6,874 Avg Close $23.96 Range $19.70 - $26.40

Q3 2019

Shares 318,708 Value ($000) $6,782 Avg Close $23.83 Range $21.11 - $27.22

Q2 2019

Shares 320,548 Value ($000) $7,456 Avg Close $24.89 Range $20.67 - $28.24

Q1 2019

Shares 377,904 Value ($000) $9,992 Avg Close $21.52 Range $17.79 - $27.62

Q4 2018

Shares 381,126 Value ($000) $7,032 Avg Close $20.53 Range $16.64 - $24.35

Q3 2018

Shares 488,015 Value ($000) $10,980 Avg Close $19.42 Range $15.90 - $22.50

Q2 2018

Shares 502,662 Value ($000) $8,093 Avg Close $13.60 Range $10.95 - $17.95

Q1 2018

Shares 539,012 Value ($000) $6,064 Avg Close $11.97 Range $10.75 - $13.25

Q4 2017

Shares 549,095 Value ($000) $6,479 Avg Close $11.56 Range $9.95 - $12.90

Q3 2017

Shares 552,645 Value ($000) $5,692 Avg Close $10.37 Range $9.68 - $11.50

Q2 2017

Shares 558,815 Value ($000) $6,175 Avg Close $10.45 Range $9.40 - $11.58

Q1 2017

Shares 510,644 Value ($000) $4,443 Avg Close $9.54 Range $7.80 - $11.54

Q4 2016

Shares 510,224 Value ($000) $4,898 Avg Close $8.92 Range $7.50 - $11.15

Q3 2016

Shares 444,638 Value ($000) $3,606 Avg Close $8.39 Range $6.80 - $9.37

Q2 2016

Shares 441,150 Value ($000) $3,917 Avg Close $8.22 Range $7.15 - $8.88

Q1 2016

Shares 448,950 Value ($000) $3,533 Avg Close $7.19 Range $6.14 - $8.53

Q4 2015

Shares 438,752 Value ($000) $3,689 Avg Close $7.62 Range $5.85 - $8.99

Q3 2015

Shares 409,500 Value ($000) $2,518 Avg Close $7.26 Range $5.98 - $9.35

Q2 2015

Shares 473,567 Value ($000) $4,304 Avg Close $10.28 Range $9.00 - $11.36

Q1 2015

Shares 399,916 Value ($000) $3,883 Avg Close $9.32 Range $8.24 - $9.94

Q4 2014

Shares 338,611 Value ($000) $3,301 Avg Close $9.35 Range $8.15 - $10.50

Q3 2014

Shares 318,860 Value ($000) $2,821 Avg Close $8.67 Range $7.85 - $9.54

Q2 2014

Shares 426,260 Value ($000) $3,606 Avg Close $7.52 Range $6.12 - $8.49

Q1 2014

Shares 423,410 Value ($000) $3,179 Avg Close $6.69 Range $5.95 - $7.95

Q4 2013

Shares 379,650 Value ($000) $2,376 Avg Close $6.04 Range $5.37 - $6.91

Q3 2013

Shares 112,050 Value ($000) $770 Avg Close $7.49 Range $6.35 - $9.22

Q2 2013

Shares 110,709 Value ($000) $859 Avg Close $7.03 Range $5.98 - $7.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	234,958	$4,084	$17.67	$15.65 - $20.23
Q3 2025	227,731	$3,976	$24.71	$17.08 - $33.34
Q2 2025	199,611	$6,022	$26.00	$19.91 - $30.49
Q1 2025	203,961	$5,572	$29.31	$26.54 - $34.45
Q4 2024	261,138	$7,578	$29.74	$27.15 - $35.85
Q3 2024	290,951	$8,859	$27.25	$25.03 - $31.36
Q2 2024	299,698	$7,978	$28.16	$24.14 - $32.24
Q1 2024	326,791	$8,549	$32.53	$25.27 - $41.40
Q4 2023	438,526	$18,050	$39.59	$34.21 - $45.75
Q3 2023	594,853	$27,060	$51.79	$45.24 - $61.84
Q2 2023	443,647	$27,559	$61.86	$58.00 - $68.34
Q1 2023	437,330	$27,084	$59.85	$51.40 - $65.41
Q4 2022	357,723	$18,387	$50.20	$44.50 - $53.61
Q3 2022	353,924	$15,704	$43.34	$36.54 - $47.32
Q2 2022	359,832	$13,515	$37.30	$32.88 - $42.69
Q1 2022	390,089	$15,728	$37.66	$31.73 - $42.40
Q4 2021	405,337	$16,736	$40.39	$36.34 - $43.87
Q3 2021	411,676	$16,405	$41.97	$35.83 - $48.95
Q2 2021	367,689	$14,704	$38.85	$32.85 - $43.14
Q1 2021	371,494	$15,324	$43.77	$34.98 - $54.65
Q4 2020	378,978	$14,903	$31.42	$25.03 - $39.95
Q3 2020	351,588	$8,994	$27.52	$23.65 - $30.55
Q2 2020	290,166	$7,382	$23.45	$19.18 - $27.41
Q1 2020	295,461	$6,598	$25.89	$16.87 - $32.08
Q4 2019	278,968	$6,874	$23.96	$19.70 - $26.40
Q3 2019	318,708	$6,782	$23.83	$21.11 - $27.22
Q2 2019	320,548	$7,456	$24.89	$20.67 - $28.24
Q1 2019	377,904	$9,992	$21.52	$17.79 - $27.62
Q4 2018	381,126	$7,032	$20.53	$16.64 - $24.35
Q3 2018	488,015	$10,980	$19.42	$15.90 - $22.50
Q2 2018	502,662	$8,093	$13.60	$10.95 - $17.95
Q1 2018	539,012	$6,064	$11.97	$10.75 - $13.25
Q4 2017	549,095	$6,479	$11.56	$9.95 - $12.90
Q3 2017	552,645	$5,692	$10.37	$9.68 - $11.50
Q2 2017	558,815	$6,175	$10.45	$9.40 - $11.58
Q1 2017	510,644	$4,443	$9.54	$7.80 - $11.54
Q4 2016	510,224	$4,898	$8.92	$7.50 - $11.15
Q3 2016	444,638	$3,606	$8.39	$6.80 - $9.37
Q2 2016	441,150	$3,917	$8.22	$7.15 - $8.88
Q1 2016	448,950	$3,533	$7.19	$6.14 - $8.53
Q4 2015	438,752	$3,689	$7.62	$5.85 - $8.99
Q3 2015	409,500	$2,518	$7.26	$5.98 - $9.35
Q2 2015	473,567	$4,304	$10.28	$9.00 - $11.36
Q1 2015	399,916	$3,883	$9.32	$8.24 - $9.94
Q4 2014	338,611	$3,301	$9.35	$8.15 - $10.50
Q3 2014	318,860	$2,821	$8.67	$7.85 - $9.54
Q2 2014	426,260	$3,606	$7.52	$6.12 - $8.49
Q1 2014	423,410	$3,179	$6.69	$5.95 - $7.95
Q4 2013	379,650	$2,376	$6.04	$5.37 - $6.91
Q3 2013	112,050	$770	$7.49	$6.35 - $9.22
Q2 2013	110,709	$859	$7.03	$5.98 - $7.85