ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Position in IRDM — Iridium Communications Inc.
CIK 1164508
BOSTON, MA
Position in IRDM
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$30,548,147
+$10,466,131 QoQ
Shares Held
1,101,231
-4.7% QoQ
Ownership
1.04%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2021
16 quarters on record
Voting authority
Sole 99.80639847588743.ToString("F0")%
Shared 0.ToString("F0")%
None 0.19360152411256132.ToString("F0")%
Common Shares in IRDM Over Time
Shares Held
Position Value (USD)
Position in Telecom Services
Communication Services · as of Mar 31, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $2,182,244,136 across 22 Telecom Services names. IRDM ranks #13 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | T |
At&T Inc.
|
18,668,905 | $541,211,555 | |
| 2 | CMCSA |
Comcast Corp
|
12,369,364 | $355,124,440 | |
| 3 | VOD |
Vodafone Group Public Ltd Co
|
22,459,955 | $337,348,524 | |
| 4 | TMUS |
T-Mobile US, Inc.
|
1,131,123 | $237,569,763 | |
| 5 | BCE |
Bce Inc
|
7,465,895 | $188,439,189 | |
| 6 | RCI |
Rogers Communications Inc
|
4,343,775 | $167,018,148 | |
| 7 | VIV |
Telefonica Brasil S.A.
|
4,609,572 | $73,338,290 | |
| 8 | LUMN |
Lumen Technologies, Inc.
|
7,954,306 | $55,282,426 |
All Filings in IRDM
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $30,548,147 | 1,101,231 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $20,082,016 | 1,155,467 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $16,370,164 | 937,581 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $11,391,317 | 377,571 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $14,981,768 | 548,381 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $12,499,958 | 430,736 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $23,804,348 | 781,752 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $16,412,667 | 616,554 | Shares | Defined | 2024-08-14 | |
| 2023-12-31 | $546,069 | 13,267 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $11,540,767 | 253,699 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $16,091,005 | 259,031 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $9,884,647 | 159,610 | Shares | Defined | 2023-05-15 | |
| 2022-09-30 | $209,736 | 4,727 | Shares | Defined | 2022-11-14 | |
| 2021-09-30 | $474,215 | 11,900 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $4,542,064 | 113,580 | Shares | Defined | 2021-08-13 | |
| 2021-03-31 | $19,077,918 | 462,495 | Shares | Defined | 2021-05-14 | |
| No filing history on record for this holder in this stock. | ||||||