Mark Zagorski
CIK 1709574 · Chief Executive Officer · last filed 2026-07-01
Mark Zagorski is a Chief Executive Officer who has filed 56 SEC Form 4 insider transactions across 6 companies since 2017. The most recent filing, for DV, was dated Jul 1, 2026. Across all open-market trades the lifetime net is +$746.5K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $7.8M across reported positions.
"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.
$7.82M
6
56
$746.5K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| DV | Chief Executive Officer | 587,817 | $13.22 | $7.77M | $605.0K | 42 | 2026-07-01 |
| TEAD | Director | 72,500 | $0.66 | $47.7K | $0 | 1 | 2026-05-18 |
| Teads Holding Co. (OB) Delisted | Director | 52,500 | $2.74 | $143.8K | $0 | 2 | 2025-06-09 |
| RUBI | President & COO | 6 | $2.23 | $13 | $0 | 1 | 2020-04-03 |
| Telaria, Inc. (TLRA) Delisted | Chief Executive Officer | 156,830 | — | — | $40.2K | 7 | 2020-02-19 |
| Telaria, Inc. (TRMR) Delisted | Chief Executive Officer | 41,865 | $5.02 | $210.2K | $101.3K | 2 | 2017-08-15 |
Recent Filings
56 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-01 | DV | Mixed | +6,023 | -$80.8K | EDGAR |
| 2026-06-17 | DV | Mixed | +27,183 | -$344.8K | EDGAR |
| 2026-06-03 | DV | Other (J) | +416 | $3.4K | EDGAR |
| 2026-05-18 | TEAD | Grant (A) | +20,000 | $0 | EDGAR |
| 2026-04-03 | DV | Mixed | +6,023 | -$70.8K | EDGAR |
| 2026-03-16 | DV | Mixed | +52,133 | -$583.7K | EDGAR |
| 2026-03-12 | DV | Grant (A) | — | $0 | EDGAR |
| 2026-01-05 | DV | Mixed | +6,023 | -$85.3K | EDGAR |
| 2025-12-17 | DV | Mixed | +14,512 | -$192.3K | EDGAR |
| 2025-09-17 | DV | Mixed | +14,412 | -$232.0K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.