D JEFFREY KEYSER
CIK 1393516 · Chief Operating 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
$365.9K
Companies
3
Total Filings
15
Lifetime Open-Market Net
$250.0K
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 |
|---|---|---|---|---|---|---|---|
| LTRN | Director | 94,303 | $3.88 | $365.9K | $250.0K | 8 | 2026-05-14 |
| ZS Pharma, Inc. (ZSPH) Delisted | Chief Operating Officer | 225,323 | — | — | $0 | 3 | 2015-12-11 |
| ENCYSIVE PHARMACEUTICALS INC (ENCY) Delisted | V.P., Regulatory Affairs | 0 | — | — | $0 | 3 | 2008-04-03 |
Recent Filings · Page 2 of 2
15 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2015-06-25 | ZS Pharma, Inc. (ZSPH) Delisted | Grant (A) | — | $0 | EDGAR |
| 2014-07-10 | ZS Pharma, Inc. (ZSPH) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-04-03 | ENCYSIVE PHARMACEUTICALS INC (ENCY) Delisted | U | −109,467 | -$257.2K | EDGAR |
| 2008-01-15 | ENCYSIVE PHARMACEUTICALS INC (ENCY) Delisted | Grant (A) | +70,000 | $0 | EDGAR |
| 2007-12-13 | ENCYSIVE PHARMACEUTICALS INC (ENCY) Delisted | Grant (A) | +35,000 | $0 | EDGAR |
Showing 11–15 of 15
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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.