Mark Kearns
Insider
First SEC filing: Oct. 8, 2010 · Latest: Oct. 8, 2010
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 1, 2011 | AMT | M | 1,177 | · | · | 1,177 Direct | · | Acquired | (price as of 2026-10-02) |
| June 1, 2011 | AMT | F | 374 | $54.13 | $20,245 | 803 Direct | -31.78% | Disposed | 199.6% (price as of 2026-10-02) |
| June 1, 2011 | AMT | M | 1,177 | · | · | 3,530 Direct | -25.01% | Disposed | (price as of 2026-10-02) |
| March 10, 2011 | AMT | A | 11,690 | · | · | 11,690 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2011 | AMT | A | 3,939 | · | · | 3,939 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| June 1, 2011 | AMT | Restricted Stock Units | Class A Common Stock | · | · | 1,177 | Disposed |
| March 10, 2011 | AMT | Option to Purchase Class A Common Stock | Class A Common Stock | $50.78 | March 10, 2021 | 11,690 | Acquired |
| March 10, 2011 | AMT | Restricted Stock Units | Class A Common Stock | · | · | 3,939 | Acquired |
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.