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 4 of 9
81 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-05-18 | MGNI | Sell (S) | −16,066 | -$174.8K | EDGAR |
| 2023-02-17 | MGNI | Tax (F) | −17,739 | -$235.4K | EDGAR |
| 2023-02-03 | MGNI | Tax (F) | −14,163 | -$171.9K | EDGAR |
| 2023-01-04 | MGNI | Grant (A) | +161,247 | $0 | EDGAR |
| 2022-11-17 | MGNI | Tax (F) | −17,605 | -$201.9K | EDGAR |
| 2022-08-17 | MGNI | Tax (F) | −5,806 | -$56.9K | EDGAR |
| 2022-05-17 | MGNI | Tax (F) | −22,480 | -$238.1K | EDGAR |
| 2022-02-16 | MGNI | Tax (F) | −5,407 | -$75.4K | EDGAR |
| 2022-02-03 | MGNI | Grant (A) | +152,144 | $0 | EDGAR |
| 2021-11-17 | MGNI | Tax (F) | −19,449 | -$437.6K | 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.