Updated Jul 16, 2026
Seibel Michael has filed 3 SEC Form 4 filings across 2 companies in the last 90 days — selling. Lifetime open-market sales: $9.09M.
Michael Seibel is a prominent entrepreneur and investor known for his role as a director at Reddit, Inc. He is also a co-founder of the startup accelerator Y Combinator and has been involved in various tech ventures, including Justin.tv and Socialcam.
| Role | Director |
|---|---|
| Notability | 50/100 |
| Links | Wikipedia |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-07 | RDDT | Reddit, Inc. | A — Grant or award | 103 | $0.00 | |
| 2026-06-10 | RDDT | Reddit, Inc. | A — Grant or award | 1.7K | $0.00 | |
| 2026-05-26 | DBX | DROPBOX, INC. | A — Grant or award | 9.1K | $0.00 | |
| 2026-04-07 | RDDT | Reddit, Inc. | A — Grant or award | 101 | $0.00 | |
| 2025-10-05 | RDDT | Reddit, Inc. | A — Grant or award | 79 | $0.00 | |
| 2025-09-30 | RDDT | Reddit, Inc. | G — Bona-fide gift | 4.3K | $0.00 | |
| 2025-07-05 | RDDT | Reddit, Inc. | A — Grant or award | 144 | $0.00 | |
| 2024-11-05 | RDDT | Reddit, Inc. | S — Open-market sale | 4.0K | $111.84 | $448K |
| 2024-11-05 | RDDT | Reddit, Inc. | S — Open-market sale | 46.0K | $111.22 | $5.12M |
| 2024-11-05 | RDDT | Reddit, Inc. | M — Option exercise | 50.0K | $0.00 | |
| 2024-11-05 | RDDT | Reddit, Inc. | S — Open-market sale | 3.8K | $112.09 | $426K |
| 2024-11-05 | RDDT | Reddit, Inc. | S — Open-market sale | 27.9K | $111.26 | $3.10M |
Michael Seibel is a prominent entrepreneur and investor known for his role as a director at Reddit, Inc. He is also a co-founder of the startup accelerator Y Combinator and has been involved in various tech ventures, including Justin.tv and Socialcam.…
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 0 open-market purchases () and 4 open-market sales ($9.09M) 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.
Open the live Seibel Michael profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.