Security key
46269C102
Iridium Communications Inc. - Common Stock (IRDM)
CUSIP: 46269C102
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock
- Shares outstanding
- 105,059,260
- Total 13F shares
- 89,310,189
- Share change
- -5,251,566
- Total reported value
- $2,474,792,098
- Put/Call ratio
- 39%
- Reported price per share
- $27.74
- Number of holders
- 373
- Value change
- -$83,049,988
- Number of buys
- 215
- Number of sells
- 144
Security identity
Holder snapshot
Report period
Q1 2026
Institutions
373
Top holders
10
IRDM full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
Iridium Communications Inc. SEC filings
Iridium Communications Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 46269C102
Recent filing periods:
Ownership snapshot
Top shareholders of IRDM - Iridium Communications Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
BlackRock, Inc.
13D/G signal
BlackRock, Inc.
Evidence rows
50
Latest as of
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 12%
13D/G row: BlackRock, Inc.
Showing first 8 of 50 holder rows.
Open remaining rows
Rank 1 holder
BlackRock, Inc.
13F
13D/G
- Ownership
- 12%
- Position
- $241.43M
Rank 2 holder
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G
- Ownership
- 5.8%
- Position
- $169.32M
Rank 3 holder
Silver Heights Capital Management Inc
13F
13D/G
- Ownership
- 5%
- Position
- $91.26M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
12%
from 13D/G
|
$241,428,182
13,891,150 shares
|
— | 31 Dec 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
Vanguard Portfolio Management
|
5.8%
|
$169,323,379
6,103,943 shares
|
$0 | 31 Mar 2026 |
| Silver Heights Capital Management Inc |
13F
13D/G
Company
|
5%
from 13D/G
|
$91,264,692
5,251,133 shares
|
— | 31 Dec 2025 |
| ARK Investment Management LLC |
13D/G
13F
Company
|
3.9%
|
$68,710,210
4,116,849 shares
|
-$39,609,693 | 30 Nov 2025 |
| BAMCO INC /NY/ |
13D/G
13F
Baron Capital Group, Inc. · Company
|
0.65%
|
$11,924,936
682,986 shares
|
-$134,353,321 | 30 Sep 2025 |
| Matthew J. Desch |
3/4/5
Chief Executive Officer, Director
|
1.4%
|
$32,702,834
1,460,600 shares
|
+$346,600 | 09 Mar 2026 |
| A. B. Krongard |
3/4/5
Director
|
0.5%
|
$9,168,382
527,525 shares
|
— | 31 Mar 2026 |
| Suzanne E. McBride |
3/4/5
Chief Operations Officer, Director
|
0.35%
|
$8,308,772
371,093 shares
|
— | 09 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
373
Shares
89,310,189
Rows loaded
373
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
324
Q1 2026 holders
373
Holder diff
49
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend