Matthew J. Desch - 26 Feb 2026 Form 4 Insider Report for Iridium Communications Inc. (IRDM)

Role
CHIEF EXECUTIVE OFFICER, Director
Signature
/s/ Peter L. Trentman, Attorney-in-Fact
Issuer symbol
IRDM
Transactions as of
26 Feb 2026
Net transactions value
-$1,198,739
Form type
4
Filing time
02 Mar 2026, 21:22:09 UTC
Previous filing
23 Dec 2025
Next filing
02 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DESCH MATTHEW J CHIEF EXECUTIVE OFFICER, Director C/O IRIDIUM COMMUNICATIONS INC., 1750 TYSONS BOULEVARD, SUITE 1400, MCLEAN /s/ Peter L. Trentman, Attorney-in-Fact 02 Mar 2026 0001178032

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IRDM Common Stock Award $0 +19,396 +1.7% $0.000000 1,134,480 26 Feb 2026 Direct F1
transaction IRDM Common Stock Award $0 +95,893 +8.5% $0.000000 1,230,373 26 Feb 2026 Direct F2
transaction IRDM Common Stock Award $0 +292,275 +24% $0.000000 1,522,648 01 Mar 2026 Direct F3
transaction IRDM Common Stock Tax liability $1,198,739 -53,301 -3.5% $22.49 1,469,347 01 Mar 2026 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects the number of restricted stock units ("RSUs") certified as earned with respect to an award under the issuer's 2025 bonus plan granted on March 1, 2025. Each RSU represents a contingent right to receive one share of common stock of the issuer. The shares will vest on March 9, 2026, subject to the reporting person's continuous service with the issuer as of the vesting date.
F2 Reflects the number of shares certified as earned with respect to an award of performance-based RSUs ("PSUs") granted on March 1, 2024. One half of the PSUs settled on March 1, 2026 and the remaining PSUs will vest and be settled on March 1, 2027.
F3 These shares are represented by RSUs. Each RSU represents a contingent right to receive one share of common stock of the issuer. Of the shares underlying this RSU award, 20% shall vest on March 1, 2027 and the remainder shall vest in equal quarterly installments thereafter on each June 1, September 1, December 1 and March 1, so that all shares of common stock shall be vested as of March 1, 2031, subject to the reporting person's continuous service with the issuer as of each such vesting date.
F4 The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations.