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Donald Lee Thoma

CIK 1472725 · EVP, Aireon · last filed 2026-07-13

Donald Lee Thoma is an EVP, Aireon who has filed 16 SEC Form 4 insider transactions across 2 companies since 2009. The most recent filing, for IRDM, was dated Jul 13, 2026. Across all open-market trades the lifetime net is −$1.8K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.3M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$2.34M

Companies

2

Total Filings

16

Lifetime Open-Market Net

-$1.8K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
IRDM EVP, Aireon 50,177 $46.68 $2.34M -$1.8K 15 2026-07-13
Iridium Communications Inc. (IRDMW) Delisted EVP, Iridium Satellite LLC 148,516 — — $0 1 2009-09-30

Recent Filings

16 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-07-13 IRDM Grant (A) +41,949 $0 EDGAR
2015-03-03 IRDM Grant (A) +6,243 $0 EDGAR
2014-12-03 IRDM Tax (F) −254 -$2.3K EDGAR
2014-09-03 IRDM Tax (F) −269 -$2.5K EDGAR
2014-03-03 IRDM Tax (F) −295 -$1.9K EDGAR
2013-12-03 IRDM Tax (F) −254 -$1.6K EDGAR
2013-09-03 IRDM Tax (F) −254 -$1.7K EDGAR
2013-06-05 IRDM Sell (S) −259 -$1.8K EDGAR
2013-03-07 IRDM Tax (F) −1,193 -$7.3K EDGAR
2013-03-05 IRDM Grant (A) — $0 EDGAR
Showing 1–10 of 16
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.