Stephan B. Tanda
CIK 1679516 · President and CEO · last filed 2026-08-04
"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
$33.39M
Companies
3
Total Filings
96
Lifetime Open-Market Net
-$20.00M
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.
Recent Filings · Page 10 of 10
96 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 |
|---|---|---|---|---|---|
| 2018-03-02 | ATR | Grant (A) | +20,935 | $0 | EDGAR |
| 2018-02-14 | ATR | Exer (M) | +14,000 | $1.05M | EDGAR |
| 2017-08-30 | Patheon N.V. (PTHN) Delisted | U | −4,659 | -$163.1K | EDGAR |
| 2017-03-27 | Patheon N.V. (PTHN) Delisted | Grant (A) | +4,659 | $0 | EDGAR |
| 2017-03-02 | ATR | Buy (P) | +2,000 | $150.4K | EDGAR |
| 2017-02-13 | ATR | Grant (A) | — | $0 | EDGAR |
Showing 91–96 of 96
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Page 10 of 10
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.