CHRISTOPHER Y CHAI
CIK 1413823 · Chief Financial Officer · last filed 2026-05-14
"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
$0
Companies
3
Total Filings
26
Lifetime Open-Market Net
-$3.33M
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 2 of 3
26 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-03-08 | Principia Biopharma Inc. (PRNB) Delisted | Grant (A) | — | $0 | EDGAR |
| 2013-03-04 | MAPP | Mixed | −14,220 | -$355.5K | EDGAR |
| 2013-01-29 | MAPP | Mixed | +2,920 | -$51.5K | EDGAR |
| 2012-01-27 | MAPP | Mixed | +1,307 | -$13.1K | EDGAR |
| 2011-09-22 | MAPP | Mixed | — | -$468.5K | EDGAR |
| 2011-01-28 | MAPP | Grant (A) | — | $0 | EDGAR |
| 2010-09-22 | MAPP | Mixed | — | -$212.9K | EDGAR |
| 2010-07-22 | MAPP | Mixed | — | -$191.5K | EDGAR |
| 2010-05-21 | MAPP | Mixed | — | -$224.5K | EDGAR |
| 2010-03-25 | MAPP | Mixed | — | -$253.6K | 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.