David Day
CIK 1523288 · CHIEF FINANCIAL OFFICER · last filed 2026-05-19
"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
$8.17M
Companies
3
Total Filings
81
Lifetime Open-Market Net
-$16.21M
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 9
81 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-06-05 | MGNI | Sell (S) | −20,732 | -$269.5K | EDGAR |
| 2024-05-17 | MGNI | Mixed | −31,750 | -$353.8K | EDGAR |
| 2024-02-16 | MGNI | Tax (F) | −30,316 | -$295.3K | EDGAR |
| 2024-02-05 | MGNI | Tax (F) | −14,417 | -$130.6K | EDGAR |
| 2024-01-04 | MGNI | Grant (A) | +161,247 | $0 | EDGAR |
| 2023-11-17 | MGNI | Tax (F) | −8,767 | -$69.2K | EDGAR |
| 2023-08-18 | MGNI | Sell (S) | −9,078 | -$75.4K | EDGAR |
| 2023-07-13 | MGNI | Mixed | — | -$124.9K | EDGAR |
| 2023-06-30 | MGNI | Sell (S) | −21,564 | -$301.9K | EDGAR |
| 2023-06-14 | MGNI | Sell (S) | −16,517 | -$221.6K | 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.