Martha N. Sullivan
CIK 1483896 · President and CEO (Interim) · last filed 2026-06-11
"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
$21.99M
Companies
3
Total Filings
87
Lifetime Open-Market Net
-$33.83M
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 |
|---|---|---|---|---|---|---|---|
| ST | President and CEO (Interim) | 409,742 | $45.61 | $18.69M | -$33.68M | 35 | 2026-06-11 |
| AVY | Director | 18,561 | $178.09 | $3.31M | -$146.7K | 19 | 2024-05-03 |
| Mirion Technologies, Inc. (GSAH.U) Delisted | Director | 35,000 | $11.13 | $389.6K | $0 | 2 | 2020-08-14 |
Recent Filings · Page 4 of 9
87 filingsInsider 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 |
|---|---|---|---|---|---|
| 2021-03-10 | ST | Mixed | — | -$1.32M | EDGAR |
| 2021-02-25 | ST | — | — | $0 | EDGAR |
| 2020-11-19 | ST | Mixed | — | -$819.3K | EDGAR |
| 2020-11-10 | ST | Mixed | — | -$222.5K | EDGAR |
| 2020-11-04 | ST | Mixed | — | -$95.6K | EDGAR |
| 2020-08-14 | Mirion Technologies, Inc. (GSAH.U) Delisted | Other (J) | — | $0 | EDGAR |
| 2020-07-07 | Mirion Technologies, Inc. (GSAH.U) Delisted | Buy (P) | +35,000 | $0 | EDGAR |
| 2020-05-04 | AVY | Mixed | +1,414 | $151.1K | EDGAR |
| 2020-04-17 | ST | Mixed | −26,091 | -$682.8K | EDGAR |
| 2020-04-03 | ST | Mixed | −31,497 | -$682.8K | EDGAR |
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.
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.