Corinna Lathan
CIK 1714701 · last filed 2026-03-18
"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
$1.27M
Companies
2
Total Filings
39
Lifetime Open-Market Net
-$2.12M
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 |
|---|---|---|---|---|---|---|---|
| PTC | Director | 8,429 | $150.44 | $1.27M | -$2.14M | 26 | 2026-03-18 |
| ChronoScale Corp (EKSO) Delisted | Director | 30,827 | $11.80 | $363.8K | $15.5K | 7 | 2025-05-19 |
Recent Filings · Page 3 of 4
39 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 |
|---|---|---|---|---|---|
| 2023-06-15 | PTC | Sell (S) | −800 | -$112.9K | EDGAR |
| 2023-02-17 | PTC | Mixed | +2,081 | $0 | EDGAR |
| 2022-11-17 | PTC | Sell (S) | −761 | -$99.8K | EDGAR |
| 2022-07-18 | ChronoScale Corp (EKSO) Delisted | Grant (A) | +51,721 | $0 | EDGAR |
| 2022-02-11 | PTC | Grant (A) | — | $0 | EDGAR |
| 2022-02-01 | PTC | Exer (M) | +1,727 | $0 | EDGAR |
| 2021-12-28 | ChronoScale Corp (EKSO) Delisted | Grant (A) | +15,000 | $0 | EDGAR |
| 2021-03-16 | PTC | Sell (S) | −1,146 | -$159.4K | EDGAR |
| 2021-02-11 | PTC | Mixed | +2,866 | $0 | EDGAR |
| 2020-11-02 | PTC | Sell (S) | −2,868 | -$239.7K | 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.