David Happel
CIK 1623567 · President & CEO · last filed 2026-07-22
"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
$5.39M
Companies
3
Total Filings
17
Lifetime Open-Market Net
-$1.09M
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 |
|---|---|---|---|---|---|---|---|
| SGMT | President & CEO | 741,570 | $7.27 | $5.39M | -$1.09M | 11 | 2026-07-22 |
| Horizon Therapeutics Public Ltd Co (HZNP) Delisted | EVP, Commercial Dev & Strategy | 9,239 | $116.30 | $1.07M | $0 | 1 | 2017-10-26 |
| Raptor Pharmaceutical Corp (RPTP) Delisted | Chief Commercial Officer | 0 | — | — | $0 | 5 | 2016-10-26 |
Recent Filings · Page 2 of 2
17 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 |
|---|---|---|---|---|---|
| 2023-07-20 | SGMT | Mixed | — | $0 | EDGAR |
| 2017-10-26 | Horizon Therapeutics Public Ltd Co (HZNP) Delisted | Mixed | +3,803 | -$56.1K | EDGAR |
| 2016-10-26 | Raptor Pharmaceutical Corp (RPTP) Delisted | Mixed | −37,873 | -$340.9K | EDGAR |
| 2016-03-03 | Raptor Pharmaceutical Corp (RPTP) Delisted | Tax (F) | −576 | -$2.0K | EDGAR |
| 2016-02-11 | Raptor Pharmaceutical Corp (RPTP) Delisted | Grant (A) | +25,017 | $0 | EDGAR |
| 2015-02-11 | Raptor Pharmaceutical Corp (RPTP) Delisted | Grant (A) | +5,229 | $0 | EDGAR |
| 2014-11-28 | Raptor Pharmaceutical Corp (RPTP) Delisted | Grant (A) | — | $0 | EDGAR |
Showing 11–17 of 17
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Page 2 of 2
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.