Robert Gardner Harrison
CIK 1421563 · Chief Information Officer · last filed 2026-03-12
"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
$255.4K
Companies
2
Total Filings
54
Lifetime Open-Market Net
-$6.39M
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 6
54 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-09-12 | SERA | Sell (S) | −645 | -$2.0K | EDGAR |
| 2025-09-09 | SERA | Sell (S) | −2,000 | -$6.1K | EDGAR |
| 2025-08-20 | SERA | Sell (S) | −6,000 | -$13.3K | EDGAR |
| 2025-08-11 | SERA | Sell (S) | −5,962 | -$15.1K | EDGAR |
| 2025-06-11 | SERA | Sell (S) | −667 | -$987 | EDGAR |
| 2025-05-09 | SERA | Sell (S) | −6,551 | -$16.0K | EDGAR |
| 2025-03-10 | SERA | Sell (S) | −3,874 | -$16.1K | EDGAR |
| 2025-03-07 | SERA | Mixed | +22,519 | -$13.5K | EDGAR |
| 2025-02-14 | SERA | Sell (S) | −3,610 | -$15.5K | EDGAR |
| 2025-02-14 | SERA | Sell (S) | −7,297 | -$33.4K | 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.