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 5 of 9
81 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-08-18 | MGNI | Sell (S) | −5,177 | -$138.8K | EDGAR |
| 2021-05-19 | MGNI | Sell (S) | −35,569 | -$924.1K | EDGAR |
| 2021-04-05 | MGNI | Grant (A) | +31,760 | $0 | EDGAR |
| 2021-03-26 | MGNI | Mixed | — | -$394.8K | EDGAR |
| 2021-03-12 | MGNI | Mixed | — | -$846.7K | EDGAR |
| 2021-02-18 | MGNI | Mixed | — | -$402.7K | EDGAR |
| 2020-12-02 | MGNI | Sell (S) | −18,033 | -$350.5K | EDGAR |
| 2020-11-23 | MGNI | Mixed | — | -$1.14M | EDGAR |
| 2020-11-18 | MGNI | Sell (S) | −16,256 | -$179.8K | EDGAR |
| 2020-11-09 | MGNI | Mixed | — | -$278.7K | 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.