CIK 0001167419 · Large accelerated filer
Riot Platforms, Inc.
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- RIOT
- Exchange
- Nasdaq
- Industry
- Finance Services
- FY end
- Dec 31
- Incorporated
- NV
- Entity type
- operating
- EIN
- 841553387
- Phone
- 303-794-2000
- Business address
- 85 RIO GRANDE DRIVE, SUITE 200, CASTLE ROCK, CO, 80104
- Former names
- Riot Blockchain, Inc., Bioptix, Inc., Venaxis, Inc., AspenBio Pharma, Inc., ASPENBIO INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-12 | Howell Stephen Mitchell Jr. COO | Gift | −21,198 | 1,834,408 | ||
| 2026-08-05 | Werner Ryan D. SVP, CAO | Sale 10b5-1 | −35,430 | $21.98 | $779K | 711,796 |
| 2026-08-05 | Werner Ryan D. SVP, CAO | Sale 10b5-1 | −9,802 | $22.82 | $224K | 701,994 |
| 2026-08-05 | Werner Ryan D. SVP, CAO | Sale 10b5-1 | −2,501 | $23.53 | $59K | 699,493 |
| 2026-07-31 | Howell Stephen Mitchell Jr. COO | Shares withheld for taxes | −153,162 | $20.17 | $3.1M | 1,855,606 |
| 2026-07-31 | Werner Ryan D. SVP, CAO | Shares withheld for taxes | −148,500 | $20.17 | $3.0M | 747,226 |
| 2026-07-31 | Les Jason CEO | Shares withheld for taxes | −2,896,921 | $20.17 | $58.4M | 4,944,637 |
| 2026-07-07 | Werner Ryan D. SVP, CAO | Sale 10b5-1 | −10,232 | $21.22 | $217K | 903,322 |
| 2026-07-07 | Werner Ryan D. SVP, CAO | Sale 10b5-1 | −7,596 | $21.93 | $167K | 895,726 |
| 2026-07-01 | Mouton Douglas Director | Grant or award | +8,347 | 44,834 | ||
| 2026-07-01 | Howell Stephen Mitchell Jr. COO | Shares withheld for taxes | −21,966 | $23.96 | $526K | 2,008,768 |
| 2026-07-01 | Turner Michael John Director | Grant or award | +8,347 | 36,450 | ||
| 2026-07-01 | Leverton Jaime Director | Grant or award | +8,347 | 36,450 | ||
| 2026-07-01 | Yee Colin M. Senior Advisor (See Remarks) | Option exercise | +124,823 | 428,435 | ||
| 2026-07-01 | Yee Colin M. Senior Advisor (See Remarks) | Option exercise · Restricted Stock Units | −41,071 | 2,074,295 | ||
| 2026-07-01 | Yee Colin M. Senior Advisor (See Remarks) | Option exercise · Restricted Stock Units | −83,752 | 1,990,543 | ||
| 2026-07-01 | Werner Ryan D. SVP, CAO | Shares withheld for taxes | −13,869 | $23.96 | $332K | 913,554 |
| 2026-07-01 | Les Jason CEO | Shares withheld for taxes | −101,015 | $23.96 | $2.4M | 7,841,558 |
| 2026-07-01 | D'Ambrosio Lance Varro Director | Grant or award | +8,347 | 68,891 | ||
| 2026-06-22 | Werner Ryan D. SVP, CAO | Sale 10b5-1 | −25,375 | $30.00 | $761K | 927,423 |
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