Michael R Merson
CIK 1440213 · View on SEC EDGAR ↗
Insider
First SEC filing: July 17, 2008 · Latest: July 17, 2008
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 4 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
4 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 29, 2012 | RIOT | P | 1,000 | $1.92 | $1,920 | 1,180 Direct | +555.56% | Acquired | 955.7% (price as of 2026-08-20) |
| Aug. 6, 2009 | RIOT | P | 1,100 | $2.85 | $3,135 | 5,400 Direct | +25.58% | Acquired | 611.2% (price as of 2026-08-20) |
| July 31, 2009 | RIOT | P | 800 | $2.80 | $2,240 | 4,300 Direct | +22.86% | Acquired | 623.9% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| April 2, 2012 | RIOT | Stock Option (Right to Buy) | Common Stock (10,000) | $0.71 | April 2, 2022 | 10,000 | Acquired |
| Jan. 5, 2011 | RIOT | Stock Option (Right to Buy) | Common Stock (50,000) | $0.59 | Jan. 5, 2021 | 50,000 | Acquired |
| Jan. 19, 2010 | RIOT | Option - Right to Buy | Common Stock (50,000) | $2.20 | Jan. 19, 2020 | 50,000 | Acquired |
| Jan. 27, 2009 | RIOT | Stock Options [F1] | Common Stock (50,000) | $1.33 | Jan. 27, 2019 | 50,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.