Scheimreif Scott 4

4 · Iridium Communications Inc. · Filed Mar 2, 2026

AI-generated summary of this filing

Updated Mar 3, 2026

Iridium (IRDM) EVP Scott Scheimreif Receives RSU/PSU Awards; Shares Withheld

What Happened

Scott Scheimreif, EVP — Government Programs at Iridium Communications, received awards totaling 92,316 restricted stock units (RSUs) / performance stock units (PSUs) in filings dated Feb 26 and Mar 1, 2026 (grants reported at $0.00). On March 1, 2026, 12,592 shares were disposed/withheld at $22.49 per share to satisfy tax withholding, totaling $283,194. These transactions are award/settlement and tax-withholding actions rather than open-market purchases or discretionary sales.

Key Details

Transaction dates and prices:
- 2026-02-26: 4,963 shares granted (RSUs) @ $0.00
- 2026-02-26: 20,548 shares granted (PSU/RSU) @ $0.00
- 2026-03-01: 66,805 shares granted (RSUs) @ $0.00
- 2026-03-01: 12,592 shares withheld/disposed for tax withholding @ $22.49 — $283,194
Shares owned after transaction: Not specified in the provided filing.
Relevant footnotes:
- F1: 2025 bonus-plan RSUs certified as earned; will vest on March 9, 2026 if continuous service condition met.
- F2: PSUs from March 1, 2024 award — one half settled on March 1, 2026; remaining PSUs to vest/settle on March 1, 2027.
- F3: RSU award with staggered vesting (20% on March 1, 2027, then quarterly through March 1, 2031).
- F4: The 12,592-share disposition represents issuer share withholding to satisfy the reporting person’s tax withholding obligations.
Filing timeliness: Report filed March 2, 2026 for transactions through March 1, 2026; no late-filing flag provided in the summary you supplied.

Context

These entries represent awards/settlements of RSUs/PSUs (compensation) rather than purchases or market sales. The 12,592-share action was a share-withholding to cover taxes (a common administrative step), not an open-market sale for cash proceeds by the insider.
PSUs are performance-based awards: half of that award settled this cycle, with the remainder scheduled for March 1, 2027. One RSU tranche vests March 9, 2026 (subject to service), and another award vests gradually through 2031.

Form 4

Period: 2026-02-26

EVP-Government Programs

Transactions

Footnotes (4)

[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.

Signature

/s/ Peter L. Trentman, Attorney-in-Fact|2026-03-02

1 file