Iridium Communications IRDM Insider Ownership

NASDAQ IRDM
$47.08 -0.72 (-1.51%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

4.26Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.139%
Shares Held by Insiders
149.68K
filed for Sep 2026
Shares Outstanding
107.84Mn
107,837,000 shares
Direct Holdings
149.68K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
25
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 09, 2026, the three largest insider holders of IRDM are Matthew J Desch (Chief Executive Officer, 1.44Mn shares), A B Krongard (Director, 366.54K shares), A B Krongard (Director, 366.54K shares).

Form 4 Holdings

Insiders Holding IRDM

Insiders 25
Shares held 4.26Mn
Of outstanding 3.95%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Matthew J Desch Chief Executive Officer 1,441,434 0 1,441,434 33.9% 02 Sep, 2026
2 A B Krongard Director 366,542 0 366,542 8.6% 02 Apr, 2026
3 Robert H Niehaus Senior Vice President 266,910 0 266,910 6.3% 19 Aug, 2026
4 Suzanne E. Mcbride Chief Operations Officer 260,991 0 260,991 6.1% 02 Sep, 2026
5 Scott Scheimreif Evp Government Programs 257,552 0 257,552 6.1% 02 Sep, 2026
6 Thomas C Canfield Director 234,294 0 234,294 5.5% 02 Jul, 2026
7 Parker William Rush Director 168,812 0 168,812 4.0% 03 Jan, 2024
8 Eric T Olson Director 149,680 0 149,680 3.5% 19 Aug, 2026
9 Thomas D Hickey Chief Legal Officer, Secretary 146,286 0 146,286 3.4% 03 Dec, 2021
10 Vincent James O'Neill Chief Financial Officer 126,944 0 126,944 3.0% 02 Sep, 2026
11 Kathleen A. Morgan Chief Legal Officer 122,818 0 122,818 2.9% 02 Sep, 2026
12 Steven B Pfeiffer Director 111,487 0 111,487 2.6% 09 Mar, 2022
13 Bryan J. Hartin Evp Sales And Marketing 94,928 0 94,928 2.2% 23 Dec, 2024
14 Timothy James Last Evp, Sales Marketing 89,899 0 89,899 2.1% 04 Sep, 2026
15 Jane L. Harman Director 60,818 0 60,818 1.4% 02 Apr, 2024
16 Barry West Director 52,547 0 52,547 1.2% 03 Apr, 2023
17 Henrik O. Schliemann Director 51,285 0 51,285 1.2% 03 Apr, 2023
18 Leon Anthony Frazier Director 46,504 0 46,504 1.1% 02 Jul, 2026
19 Thomas Fitzpatrick Chief Financial Officer 43,260 0 43,260 1.0% 19 Aug, 2026
20 Donald Lee Thoma Evp, Aireon 41,949 0 41,949 1.0% 13 Jul, 2026
21 Timothy Kapalka Cao Iridium Satellite Llc 35,038 0 35,038 0.8% 02 Sep, 2026
22 Kay Sears Director 30,114 0 30,114 0.7% 02 Jul, 2026
23 Jacqueline E Yeaney Director 25,340 0 25,340 0.6% 02 Jul, 2026
24 Monique S. Shivanandan Director 15,939 0 15,939 0.4% 02 Jul, 2026
25 Louis M Alterman Director 13,810 0 13,810 0.3% 02 Jul, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

8,678 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
03 Sep, 2026 Timothy James Last Evp, Sales Marketing Disposed S 2,013 $47.36 $95.34K 89,899 Direct
20 Aug, 2026 Suzanne E. Mcbride Chief Operations Officer Disposed G 17,403 $0.00 $0 264,614 Direct
17 Aug, 2026 Kathleen A. Morgan Chief Legal Officer Disposed S 32,648 $50.34 $1.64Mn 125,415 Direct
17 Aug, 2026 Thomas Fitzpatrick Director Disposed S 209,233 $50.22 $10.51Mn 58,306 Direct
17 Aug, 2026 Timothy Kapalka Cao Iridium Satellite Llc Disposed S 13,473 $50.51 $680.52K 35,731 Direct
17 Aug, 2026 Robert H Niehaus Director Disposed G 50,000 $0.00 $0 266,910 Direct
17 Aug, 2026 Suzanne E. Mcbride Chief Operations Officer Disposed S 85,454 $50.28 $4.30Mn 282,017 Direct
17 Aug, 2026 Eric T Olson Director Disposed S 8,000 $50.61 $404.88K 149,680 Direct
17 Aug, 2026 Timothy James Last Evp, Sales Marketing Disposed S 19,021 $50.33 $957.33K 93,913 Direct
18 Aug, 2026 Thomas Fitzpatrick Director Disposed S 15,046 $49.20 $740.26K 43,260 Direct
17 Aug, 2026 Timothy James Last Evp, Sales Marketing Disposed S 500 $50.88 $25.44K 93,413 Direct
17 Aug, 2026 Kathleen A. Morgan Chief Legal Officer Disposed S 544 $50.85 $27.66K 124,871 Direct
10 Jul, 2026 Donald Lee Thoma Evp, Aireon Acquired A 41,949 $0.00 $0 41,949 Direct
30 Jun, 2026 Thomas Fitzpatrick Director Acquired A 49 $0.00 $0 267,539 Direct
30 Jun, 2026 Monique S. Shivanandan Director Acquired A 44 $0.00 $0 15,939 Direct
30 Jun, 2026 Robert H Niehaus Director Acquired A 378 $0.00 $0 316,910 Direct
30 Jun, 2026 Kay Sears Director Acquired A 30 $0.00 $0 30,114 Direct
30 Jun, 2026 Louis M Alterman Director Acquired A 38 $0.00 $0 13,810 Direct
30 Jun, 2026 Jacqueline E Yeaney Director Acquired A 30 $0.00 $0 25,340 Direct
30 Jun, 2026 Leon Anthony Frazier Director Acquired A 93 $0.00 $0 46,504 Direct