Mike Dai was appointed as a director of Bioptix, Inc. (formerly known as Riot) effective January 6, 2017, and serves as Chair of the Compensation Committee. He is classified as an independent director. The 2017 proxy statement provides no information regarding his prior career, professional experience, education, or other board affiliations.
Biography extracted from Riot DEF 14A filed 2017-07-10 View cached copy (2026-09-27)Live source ↗
Roles
Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.
| Company | Role | Tenure | Filings |
|---|---|---|---|
| Riot | Director | 2017-01 → present (9y 10mo) | 3 |
Show 3 underlying filings | |||
Insider transactions
Totals for this person
| Bucket | Invested (shares) | Invested (USD) | Divested (shares) | Divested (USD) | Net direction | Txns | Invested @ last price | Divested @ last price |
|---|---|---|---|---|---|---|---|---|
| All time | 40,000 | $0 | - | $0 | Flat | 2 | $512.4K | $0 |
| 2017 | 40,000 | $0 | - | $0 | Flat | 2 | $512.4K | $0 |
| 2017-Q1 | 20,000 | $0 | - | $0 | Flat | 1 | $256.2K | $0 |
| 2017-Q3 | 20,000 | $0 | - | $0 | Flat | 1 | $256.2K | $0 |
Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-10-30); they are a valuation, not a cash flow, and they move every day the market does.
All transactions
| Date | Company | Kind | Shares | Amount (USD) | Value @ last price |
|---|---|---|---|---|---|
| 2017-08-21 | Riot | Grant / award / vesting | 20,000 | - | $256.2K |
| 2017-02-03 | Riot | Grant / award / vesting | 20,000 | - | $256.2K |