Iridium Communications Inc. (IRDM) Insider Ownership

Historic Insider Ownership Trends

IRDM's three largest insider shareholders as of April 17, 2026 are Ltd Baralonco (TenPercentOwner, 13.10Mn shares), Matthew J Desch (Chief Executive Officer, 1.46Mn shares), Suzanne E. Mcbride (Chief Operations Officer, 371.09K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Ltd Baralonco - 13,099,230 0 25 Aug, 2021
Matthew J Desch Chief Executive Officer 1,460,600 0 11 Mar, 2026
Suzanne E. Mcbride Chief Operations Officer 371,093 0 11 Mar, 2026
A B Krongard - 366,542 0 02 Apr, 2026
A B Krongard - 366,542 0 02 Apr, 2026
Robert H Niehaus Senior Vice President 316,533 0 02 Apr, 2026
Thomas Fitzpatrick Chief Financial Officer 267,490 0 02 Apr, 2026
Scott Scheimreif Evp Government Programs 261,964 0 11 Mar, 2026
Scott Scheimreif Evp Government Programs 261,964 0 11 Mar, 2026
Thomas C Canfield - 233,791 0 02 Apr, 2026
Parker William Rush - 168,812 0 03 Jan, 2024
Parker William Rush - 168,812 0 03 Jan, 2024
Kathleen A. Morgan Chief Legal Officer 160,115 0 11 Mar, 2026
Kathleen A. Morgan Chief Legal Officer 160,115 0 11 Mar, 2026
Eric T Olson - 157,295 0 02 Apr, 2026
Thomas D Hickey Chief Legal Officer, Secretary 146,286 0 03 Dec, 2021
Vincent James O'Neill Chief Financial Officer 129,864 0 11 Mar, 2026
Vincent James O'Neill Chief Financial Officer 129,864 0 11 Mar, 2026
Timothy James Last Evp, Sales Marketing 114,432 0 11 Mar, 2026
Timothy James Last Evp, Sales Marketing 114,432 0 11 Mar, 2026
Steven B Pfeiffer - 111,487 0 09 Mar, 2022
Steven B Pfeiffer - 111,487 0 09 Mar, 2022
Bryan J. Hartin Evp Sales And Marketing 94,928 0 23 Dec, 2024
Jane L. Harman - 60,818 0 02 Apr, 2024
Barry West - 52,547 0 03 Apr, 2023
Barry West - 52,547 0 03 Apr, 2023
Timothy Kapalka Cao Iridium Satellite Llc 51,554 0 11 Mar, 2026
Henrik O. Schliemann - 51,285 0 03 Apr, 2023
Henrik O. Schliemann - 51,285 0 03 Apr, 2023
Leon Anthony Frazier - 46,411 0 02 Apr, 2026
Timothy Kapalka Cao Iridium Satellite Llc 45,721 0 06 Apr, 2026
Kay Sears - 30,084 0 02 Apr, 2026
Kay Sears - 30,084 0 02 Apr, 2026
Jacqueline E Yeaney - 25,310 0 02 Apr, 2026
Jacqueline E Yeaney - 25,310 0 02 Apr, 2026
Monique S. Shivanandan - 15,895 0 02 Apr, 2026
Monique S. Shivanandan - 15,895 0 02 Apr, 2026
Louis M Alterman - 13,772 0 02 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
02 Apr, 2026 Timothy Kapalka Common Stock D 3,790 $31.00 47,764 D S
06 Apr, 2026 Timothy Kapalka Common Stock D 2,043 $33.00 45,721 D S
31 Mar, 2026 Louis M Alterman Common Stock A 74 $0.00 13,772 D A
31 Mar, 2026 Jacqueline E Yeaney Common Stock A 59 $0.00 25,310 D A
31 Mar, 2026 Kay Sears Common Stock A 59 $0.00 30,084 D A
31 Mar, 2026 Thomas Fitzpatrick Common Stock A 95 $0.00 267,490 D A
31 Mar, 2026 Leon Anthony Frazier Common Stock A 182 $0.00 46,411 D A
31 Mar, 2026 Thomas C Canfield Common Stock A 1,257 $0.00 233,791 D A
31 Mar, 2026 A B Krongard Common Stock A 640 $0.00 366,542 D A
31 Mar, 2026 Monique S. Shivanandan Common Stock A 86 $0.00 15,895 D A
09 Mar, 2026 Timothy James Last Common Stock D 2,335 $24.01 114,432 D F
09 Mar, 2026 Kathleen A. Morgan Common Stock D 2,191 $24.01 160,115 D F
09 Mar, 2026 Matthew J Desch Common Stock D 8,747 $24.01 1,460,600 D F
09 Mar, 2026 Vincent James O'Neill Common Stock D 2,514 $24.01 129,864 D F
09 Mar, 2026 Timothy Kapalka Common Stock D 744 $24.01 51,554 D F
09 Mar, 2026 Scott Scheimreif Common Stock D 2,397 $24.01 261,964 D F
26 Feb, 2026 Matthew J Desch Common Stock A 19,396 $0.00 1,134,480 D A
26 Feb, 2026 Thomas Fitzpatrick Common Stock A 34,247 $0.00 276,162 D A
26 Feb, 2026 Kathleen A. Morgan Common Stock A 4,859 $0.00 82,088 D A
26 Feb, 2026 Vincent James O'Neill Common Stock A 5,066 $0.00 52,529 D A