Mark F. Lamps
CIK 1769052 · Pres. Safety & Infrastructure · last filed 2026-06-02
"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
$2.86M
Companies
1
Total Filings
51
Lifetime Open-Market Net
-$2.46M
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 |
|---|---|---|---|---|---|---|---|
| ATKR | Pres. Safety & Infrastructure | 36,102 | $79.27 | $2.86M | -$2.46M | 51 | 2026-06-02 |
Recent Filings · Page 4 of 6
51 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-03-07 | ATKR | Sell (S) | −638 | -$65.7K | EDGAR |
| 2022-03-03 | ATKR | Tax (F) | −898 | -$89.6K | EDGAR |
| 2021-11-30 | ATKR | Mixed | +6,729 | -$743.9K | EDGAR |
| 2021-11-26 | ATKR | Sell (S) | −308 | -$34.8K | EDGAR |
| 2021-11-23 | ATKR | Tax (F) | −503 | -$56.2K | EDGAR |
| 2021-11-18 | ATKR | Mixed | +937 | -$73.6K | EDGAR |
| 2021-03-03 | ATKR | Mixed | −1,544 | -$107.6K | EDGAR |
| 2021-01-06 | ATKR | Sell (S) | −324 | -$13.8K | EDGAR |
| 2020-12-01 | ATKR | Tax (F) | −516 | -$20.6K | EDGAR |
| 2020-11-30 | ATKR | Mixed | +374 | -$38.7K | EDGAR |
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.