MICHAEL L MORRISON

CIK 1228756 · CFO & Treasurer · last filed 2026-03-03

"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

$323.0K

Companies

2

Total Filings

34

Lifetime Open-Market Net

-$551.3K

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
NCSM CFO & Treasurer 7,217 $44.76 $323.0K $0 6 2026-03-03
ION GEOPHYSICAL CORP (IO) Delisted EVP & CFO 118,082 $0.34 $40.7K -$551.3K 28 2022-05-13

Recent Filings · Page 2 of 4

34 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
2021-04-21 ION GEOPHYSICAL CORP (IO) Delisted Tax (F) −5,697 -$12.3K EDGAR
2021-04-21 ION GEOPHYSICAL CORP (IO) Delisted Tax (F) −5,697 -$12.3K EDGAR
2021-03-09 ION GEOPHYSICAL CORP (IO) Delisted Tax (F) −2,971 -$7.8K EDGAR
2020-03-06 ION GEOPHYSICAL CORP (IO) Delisted Grant (A) +50,000 $0 EDGAR
2020-02-20 ION GEOPHYSICAL CORP (IO) Delisted Buy (P) +1,163 $5.0K EDGAR
2013-06-04 ION GEOPHYSICAL CORP (IO) Delisted $0 EDGAR
2013-03-15 ION GEOPHYSICAL CORP (IO) Delisted Sell (S) −3,000 -$21.3K EDGAR
2012-12-04 ION GEOPHYSICAL CORP (IO) Delisted Mixed +4,082 -$5.5K EDGAR
2012-09-17 ION GEOPHYSICAL CORP (IO) Delisted Sell (S) −2,750 -$21.4K EDGAR
2011-12-05 ION GEOPHYSICAL CORP (IO) Delisted Mixed +3,346 -$3.8K EDGAR
Showing 1120 of 34
Page 2 of 4
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.