Michael Kastner
CIK 1481337 · View on SEC EDGAR ↗
Insider
First SEC filing: March 23, 2010 · Latest: March 23, 2010
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 11 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
11 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 3, 2011 | MXL | S | 802 | $9.12 | $7,314 | 0 Direct | -100.00% | Disposed | 645.2% (price as of 2026-08-19) |
| Dec. 3, 2010 | MXL | S | 200 | $10.78 | $2,156 | 0 Direct | -100.00% | Disposed | 530.5% (price as of 2026-08-19) |
| Dec. 3, 2010 | MXL | S | 661 | $10.76 | $7,112 | 200 Direct | -76.77% | Disposed | 531.6% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| May 21, 2012 | MXL | Restricted Stock Units | Class A Common Stock (par value $0.0001) (628) | — | May 20, 2015 | 628 | Disposed |
| May 18, 2012 | MXL | Restricted Stock Units | Class A Common Stock (par value $0.0001) (6,000) | — | May 18, 2015 | 6,000 | Acquired |
| May 18, 2012 | MXL | Stock Option (Right to Buy) | Class A Common Stock (par value $0.0001) (12,000) | $9.10 | May 6, 2018 | 12,000 | Disposed |
| May 6, 2011 | MXL | Stock Option (Right to Buy) | Class A Common Stock (par value $0.0001) (12,000) | $9.10 | May 6, 2018 | 12,000 | Acquired |
| May 6, 2011 | MXL | Restricted Stock Units | Class A Common Stock (par value $0.0001) (6,000) | — | May 20, 2015 | 6,000 | Acquired |
| March 29, 2010 | MXL | Employee Stock Option (right to buy) | Class B Common Stock [F4] (8,610) | $1.45 | Oct. 1, 2018 | 8,610 | Acquired |
| March 29, 2010 | MXL | Employee Stock Option (right to buy) | Class B Common Stock [F4] (217,471) | $1.45 | Oct. 1, 2018 | 217,471 | Acquired |
| March 29, 2010 | MXL | Employee Stock Option (right to buy) | Common Stock (8,610) | $1.45 | Oct. 1, 2018 | 8,610 | Disposed |
| March 29, 2010 | MXL | Employee Stock Option (right to buy) | Common Stock (217,471) | $1.45 | Oct. 1, 2018 | 217,471 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.