John R. Riesenberger
CIK 1424060 · View on SEC EDGAR ↗
First SEC filing: Aug. 15, 2008 · Latest: Aug. 15, 2008
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Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 13, 2008 | MNKD | A | 40,000 | $3.89 | $155,600 | 40,000 Direct | — | Acquired | -77.9% (price as of 2026-08-21) |
| Aug. 6, 2008 | MNKD | D | 20,300 | $7.05 | $143,115 | 0 Direct | -100.00% | Disposed | -87.8% (price as of 2026-08-21) |
| Aug. 6, 2008 | MNKD | A | 10,150 | — | — | 14,650 Direct | +225.56% | Acquired | (price as of 2026-08-21) |
| Feb. 21, 2008 | MNKD | A | 20,300 | $7.05 | $143,115 | 20,300 Direct | — | Acquired | -87.8% (price as of 2026-08-21) |
| Feb. 21, 2008 | MNKD | A | 4,500 | — | — | 4,500 Direct | — | Acquired | (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 13, 2008 | MNKD | Employee Stock Option (right to buy) | Common Stock (40,000) | $3.89 | Aug. 13, 2018 | 40,000 | Acquired |
| Aug. 6, 2008 | MNKD | Employee Stock Option (right to buy) | Common Stock (20,300) | $7.05 | Jan. 7, 2018 | 20,300 | Disposed |
| Feb. 21, 2008 | MNKD | Employee Stock Option (right to buy) | Common Stock (20,300) | $7.05 | Jan. 7, 2018 | 20,300 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).