Updated Jul 16, 2026
Walker Mark D has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $242K.
Mark D. Walker is the Chairman and CEO of Direct Digital Holdings, Inc., where he also serves as a Director and holds a 10% ownership stake. He has been involved in the company's operations and strategic direction, focusing on programmatic advertising solutions.
| Role | Chairman and CEO, Director |
|---|---|
| Notability | 30/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 1.4K | $2.80 | $4K |
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | F — Tax withholding / forfeiture | 20 | $3.29 | $66 |
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | M — Option exercise | 67 | — | |
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | F — Tax withholding / forfeiture | 14 | $3.52 | $49 |
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | M — Option exercise | 45 | — | |
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | F — Tax withholding / forfeiture | 61 | $16.48 | $1K |
| 2026-06-29 | DRCT | Direct Digital Holdings, Inc. | M — Option exercise | 204 | — | |
| 2025-09-11 | DRCT | Direct Digital Holdings, Inc. | J — Other acquisition / disposition | 272.5K | — | |
| 2025-08-15 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 23.0K | $0.39 | $9K |
| 2025-08-15 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 24.3K | $0.39 | $9K |
| 2025-08-15 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 22.4K | $0.41 | $9K |
| 2025-07-21 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 5.6K | $0.51 | $3K |
| 2025-07-21 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 15.5K | $0.51 | $8K |
| 2025-07-21 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 16.7K | $0.52 | $9K |
| 2025-07-16 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 19.8K | $0.51 | $10K |
| 2025-07-16 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 19.3K | $0.52 | $10K |
| 2025-07-16 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 11.6K | $0.53 | $6K |
| 2025-07-14 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 8.1K | $0.54 | $4K |
| 2025-07-14 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 21.2K | $0.55 | $12K |
| 2024-12-17 | DRCT | Direct Digital Holdings, Inc. | S — Open-market sale | 8.1K | $0.70 | $6K |
Mark D. Walker is the Chairman and CEO of Direct Digital Holdings, Inc., where he also serves as a Director and holds a 10% ownership stake. He has been involved in the company's operations and strategic direction, focusing on programmatic advertising solutions.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 29 open-market sales ($242K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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