IRIDIUM COMMUNICATIONS INC

Ticker: IRDM CUSIP: 46269C102 Class: Common Stock

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q4 2025

Shares 224,509 Value ($000) $3,902 Avg Close $17.67 Range $15.65 - $20.23

Q3 2025

Shares 267,069 Value ($000) $4,663 Avg Close $24.71 Range $17.08 - $33.34

Q2 2025

Shares 285,761 Value ($000) $8,621 Avg Close $26.00 Range $19.91 - $30.49

Q1 2025

Shares 299,969 Value ($000) $8,195 Avg Close $29.31 Range $26.54 - $34.45

Q4 2024

Shares 317,454 Value ($000) $9,212 Avg Close $29.74 Range $27.15 - $35.85

Q3 2024

Shares 321,861 Value ($000) $9,801 Avg Close $27.25 Range $25.03 - $31.36

Q2 2024

Shares 328,310 Value ($000) $8,740 Avg Close $28.16 Range $24.14 - $32.24

Q1 2024

Shares 359,438 Value ($000) $9,403 Avg Close $32.53 Range $25.27 - $41.40

Q4 2023

Shares 378,460 Value ($000) $15,577 Avg Close $39.59 Range $34.21 - $45.75

Q3 2023

Shares 384,636 Value ($000) $17,497 Avg Close $51.79 Range $45.24 - $61.84

Q2 2023

Shares 388,977 Value ($000) $24,163 Avg Close $61.86 Range $58.00 - $68.34

Q1 2023

Shares 397,872 Value ($000) $25 Avg Close $59.85 Range $51.40 - $65.41

Q4 2022

Shares 395,328 Value ($000) $20 Avg Close $50.20 Range $44.50 - $53.61

Q3 2022

Shares 398,715 Value ($000) $17,691 Avg Close $43.34 Range $36.54 - $47.32

Q2 2022

Shares 387,456 Value ($000) $14,553 Avg Close $37.30 Range $32.88 - $42.69

Q1 2022

Shares 359,276 Value ($000) $14,486 Avg Close $37.66 Range $31.73 - $42.40

Q4 2021

Shares 355,319 Value ($000) $14,671 Avg Close $40.39 Range $36.34 - $43.87

Q3 2021

Shares 352,196 Value ($000) $14,035 Avg Close $41.97 Range $35.83 - $48.95

Q2 2021

Shares 328,341 Value ($000) $13,130 Avg Close $38.85 Range $32.85 - $43.14

Q1 2021

Shares 342,971 Value ($000) $14,148 Avg Close $43.77 Range $34.98 - $54.65

Q4 2020

Shares 351,160 Value ($000) $13,809 Avg Close $31.42 Range $25.03 - $39.95

Q3 2020

Shares 336,152 Value ($000) $8,599 Avg Close $27.52 Range $23.65 - $30.55

Q2 2020

Shares 332,699 Value ($000) $8,464 Avg Close $23.45 Range $19.18 - $27.41

Q1 2020

Shares 358,198 Value ($000) $7,999 Avg Close $25.89 Range $16.87 - $32.08

Q4 2019

Shares 339,923 Value ($000) $8,376 Avg Close $23.96 Range $19.70 - $26.40

Q3 2019

Shares 319,139 Value ($000) $6,791 Avg Close $23.83 Range $21.11 - $27.22

Q2 2019

Shares 297,681 Value ($000) $6,924 Avg Close $24.89 Range $20.67 - $28.24

Q1 2019

Shares 289,714 Value ($000) $7,660 Avg Close $21.52 Range $17.79 - $27.62

Q4 2018

Shares 285,026 Value ($000) $5,259 Avg Close $20.53 Range $16.64 - $24.35

Q3 2018

Shares 231,147 Value ($000) $5,201 Avg Close $19.42 Range $15.90 - $22.50

Q2 2018

Shares 215,504 Value ($000) $3,470 Avg Close $13.60 Range $10.95 - $17.95

Q1 2018

Shares 196,749 Value ($000) $2,213 Avg Close $11.97 Range $10.75 - $13.25

Q4 2017

Shares 194,850 Value ($000) $2,299 Avg Close $11.56 Range $9.95 - $12.90

Q3 2017

Shares 168,641 Value ($000) $1,737 Avg Close $10.37 Range $9.68 - $11.50

Q2 2017

Shares 164,291 Value ($000) $1,815 Avg Close $10.45 Range $9.40 - $11.58

Q1 2017

Shares 162,971 Value ($000) $1,573 Avg Close $9.54 Range $7.80 - $11.54

Q4 2016

Shares 117,865 Value ($000) $1,132 Avg Close $8.92 Range $7.50 - $11.15

Q3 2016

Shares 119,002 Value ($000) $965 Avg Close $8.39 Range $6.80 - $9.37

Q2 2016

Shares 113,392 Value ($000) $1,007 Avg Close $8.22 Range $7.15 - $8.88

Q1 2016

Shares 135,341 Value ($000) $1,065 Avg Close $7.19 Range $6.14 - $8.53

Q4 2015

Shares 121,921 Value ($000) $1,025 Avg Close $7.62 Range $5.85 - $8.99

Q3 2015

Shares 117,526 Value ($000) $723 Avg Close $7.26 Range $5.98 - $9.35

Q2 2015

Shares 111,463 Value ($000) $1,013 Avg Close $10.28 Range $9.00 - $11.36

Q1 2015

Shares 113,133 Value ($000) $1,099 Avg Close $9.32 Range $8.24 - $9.94

Q4 2014

Shares 99,833 Value ($000) $973 Avg Close $9.35 Range $8.15 - $10.50

Q3 2014

Shares 94,588 Value ($000) $837 Avg Close $8.67 Range $7.85 - $9.54

Q2 2014

Shares 94,588 Value ($000) $800 Avg Close $7.52 Range $6.12 - $8.49

Q1 2014

Shares 79,593 Value ($000) $598 Avg Close $6.69 Range $5.95 - $7.95

Q4 2013

Shares 82,423 Value ($000) $516 Avg Close $6.04 Range $5.37 - $6.91

Q3 2013

Shares 88,123 Value ($000) $606 Avg Close $7.49 Range $6.35 - $9.22

Q2 2013

Shares 88,684 Value ($000) $688 Avg Close $7.03 Range $5.98 - $7.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	224,509	$3,902	$17.67	$15.65 - $20.23
Q3 2025	267,069	$4,663	$24.71	$17.08 - $33.34
Q2 2025	285,761	$8,621	$26.00	$19.91 - $30.49
Q1 2025	299,969	$8,195	$29.31	$26.54 - $34.45
Q4 2024	317,454	$9,212	$29.74	$27.15 - $35.85
Q3 2024	321,861	$9,801	$27.25	$25.03 - $31.36
Q2 2024	328,310	$8,740	$28.16	$24.14 - $32.24
Q1 2024	359,438	$9,403	$32.53	$25.27 - $41.40
Q4 2023	378,460	$15,577	$39.59	$34.21 - $45.75
Q3 2023	384,636	$17,497	$51.79	$45.24 - $61.84
Q2 2023	388,977	$24,163	$61.86	$58.00 - $68.34
Q1 2023	397,872	$25	$59.85	$51.40 - $65.41
Q4 2022	395,328	$20	$50.20	$44.50 - $53.61
Q3 2022	398,715	$17,691	$43.34	$36.54 - $47.32
Q2 2022	387,456	$14,553	$37.30	$32.88 - $42.69
Q1 2022	359,276	$14,486	$37.66	$31.73 - $42.40
Q4 2021	355,319	$14,671	$40.39	$36.34 - $43.87
Q3 2021	352,196	$14,035	$41.97	$35.83 - $48.95
Q2 2021	328,341	$13,130	$38.85	$32.85 - $43.14
Q1 2021	342,971	$14,148	$43.77	$34.98 - $54.65
Q4 2020	351,160	$13,809	$31.42	$25.03 - $39.95
Q3 2020	336,152	$8,599	$27.52	$23.65 - $30.55
Q2 2020	332,699	$8,464	$23.45	$19.18 - $27.41
Q1 2020	358,198	$7,999	$25.89	$16.87 - $32.08
Q4 2019	339,923	$8,376	$23.96	$19.70 - $26.40
Q3 2019	319,139	$6,791	$23.83	$21.11 - $27.22
Q2 2019	297,681	$6,924	$24.89	$20.67 - $28.24
Q1 2019	289,714	$7,660	$21.52	$17.79 - $27.62
Q4 2018	285,026	$5,259	$20.53	$16.64 - $24.35
Q3 2018	231,147	$5,201	$19.42	$15.90 - $22.50
Q2 2018	215,504	$3,470	$13.60	$10.95 - $17.95
Q1 2018	196,749	$2,213	$11.97	$10.75 - $13.25
Q4 2017	194,850	$2,299	$11.56	$9.95 - $12.90
Q3 2017	168,641	$1,737	$10.37	$9.68 - $11.50
Q2 2017	164,291	$1,815	$10.45	$9.40 - $11.58
Q1 2017	162,971	$1,573	$9.54	$7.80 - $11.54
Q4 2016	117,865	$1,132	$8.92	$7.50 - $11.15
Q3 2016	119,002	$965	$8.39	$6.80 - $9.37
Q2 2016	113,392	$1,007	$8.22	$7.15 - $8.88
Q1 2016	135,341	$1,065	$7.19	$6.14 - $8.53
Q4 2015	121,921	$1,025	$7.62	$5.85 - $8.99
Q3 2015	117,526	$723	$7.26	$5.98 - $9.35
Q2 2015	111,463	$1,013	$10.28	$9.00 - $11.36
Q1 2015	113,133	$1,099	$9.32	$8.24 - $9.94
Q4 2014	99,833	$973	$9.35	$8.15 - $10.50
Q3 2014	94,588	$837	$8.67	$7.85 - $9.54
Q2 2014	94,588	$800	$7.52	$6.12 - $8.49
Q1 2014	79,593	$598	$6.69	$5.95 - $7.95
Q4 2013	82,423	$516	$6.04	$5.37 - $6.91
Q3 2013	88,123	$606	$7.49	$6.35 - $9.22
Q2 2013	88,684	$688	$7.03	$5.98 - $7.85