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 3 of 6
54 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-02-13 | SERA | Sell (S) | −554 | -$2.2K | EDGAR |
| 2025-01-14 | SERA | Sell (S) | −16,473 | -$119.7K | EDGAR |
| 2024-11-12 | SERA | Sell (S) | −4,727 | -$34.6K | EDGAR |
| 2024-08-08 | SERA | Sell (S) | −5,022 | -$37.3K | EDGAR |
| 2024-05-10 | SERA | Sell (S) | −4,902 | -$47.0K | EDGAR |
| 2024-03-07 | SERA | Sell (S) | −2,138 | -$19.3K | EDGAR |
| 2024-02-07 | SERA | Sell (S) | −5,665 | -$45.5K | EDGAR |
| 2023-11-08 | SERA | Grant (A) | +125,000 | $0 | EDGAR |
| 2023-06-06 | SERA | Sell (S) | −5,000 | -$16.1K | EDGAR |
| 2023-03-07 | SERA | Grant (A) | +28,500 | $0 | 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.