Steven O Vondran
CIK 1749304 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 7, 2025 · Latest: Jan. 7, 2025
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-6,309,967
+ 51 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
51 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 4, 2026 | AMT | S 10b5-1 | 1,773 | $189.82 | $336,551 | 105,374 Direct | -1.65% | Disposed | -6.9% (price as of 2026-08-21) |
| March 4, 2026 | AMT | S 10b5-1 | 16,625 | $188.82 | $3,139,132 | 107,147 Direct | -13.43% | Disposed | -6.4% (price as of 2026-08-21) |
| March 4, 2026 | AMT | S 10b5-1 | 15,084 | $187.90 | $2,834,284 | 123,772 Direct | -10.86% | Disposed | -6.0% (price as of 2026-08-21) |
| Aug. 2, 2024 | AMT | S 10b5-1 | 21,537 | $230.00 | $4,953,510 | 61,843 Direct | -25.83% | Disposed | -23.2% (price as of 2026-08-21) |
| March 4, 2024 | AMT | S 10b5-1 | 650 | $201.80 | $131,170 | 58,372 Direct | -1.10% | Disposed | -12.4% (price as of 2026-08-21) |
| March 4, 2024 | AMT | S 10b5-1 | 919 | $201.19 | $184,894 | 59,022 Direct | -1.53% | Disposed | -12.2% (price as of 2026-08-21) |
| March 4, 2024 | AMT | S 10b5-1 | 1,696 | $199.48 | $338,318 | 59,941 Direct | -2.75% | Disposed | -11.4% (price as of 2026-08-21) |
| July 13, 2021 | AMT | S 10b5-1 | 816 | $278.14 | $226,962 | 18,371 Direct | -4.25% | Disposed | -36.5% (price as of 2026-08-21) |
| July 12, 2021 | AMT | S 10b5-1 | 300 | $279.79 | $83,937 | 19,187 Direct | -1.54% | Disposed | -36.9% (price as of 2026-08-21) |
| July 12, 2021 | AMT | S 10b5-1 | 6,268 | $279.31 | $1,750,715 | 19,487 Direct | -24.34% | Disposed | -36.7% (price as of 2026-08-21) |
| July 12, 2021 | AMT | S 10b5-1 | 1,478 | $278.01 | $410,899 | 25,755 Direct | -5.43% | Disposed | -36.4% (price as of 2026-08-21) |
| Dec. 1, 2020 | AMT | S 10b5-1 | 1,500 | $232.00 | $348,000 | 22,026 Direct | -6.38% | Disposed | -23.8% (price as of 2026-08-21) |
| Nov. 2, 2020 | AMT | S 10b5-1 | 1,500 | $232.58 | $348,870 | 22,026 Direct | -6.38% | Disposed | -24.0% (price as of 2026-08-21) |
| Oct. 1, 2020 | AMT | S 10b5-1 | 1,500 | $242.19 | $363,285 | 22,026 Direct | -6.38% | Disposed | -27.0% (price as of 2026-08-21) |
| Sept. 1, 2020 | AMT | S 10b5-1 | 1,500 | $248.44 | $372,660 | 22,224 Direct | -6.32% | Disposed | -28.9% (price as of 2026-08-21) |
| Aug. 3, 2020 | AMT | S 10b5-1 | 1,334 | $259.00 | $345,506 | 22,224 Direct | -5.66% | Disposed | -31.8% (price as of 2026-08-21) |
| July 1, 2020 | AMT | S 10b5-1 | 288 | $260.44 | $75,007 | 23,558 Direct | -1.21% | Disposed | -32.2% (price as of 2026-08-21) |
| July 1, 2020 | AMT | S 10b5-1 | 540 | $259.69 | $140,233 | 23,846 Direct | -2.21% | Disposed | -32.0% (price as of 2026-08-21) |
| July 1, 2020 | AMT | S 10b5-1 | 560 | $258.83 | $144,945 | 24,386 Direct | -2.24% | Disposed | -31.7% (price as of 2026-08-21) |
| June 1, 2020 | AMT | S 10b5-1 | 1,369 | $258.03 | $353,243 | 24,946 Direct | -5.20% | Disposed | -31.5% (price as of 2026-08-21) |
| May 1, 2020 | AMT | S 10b5-1 | 1,154 | $233.24 | $269,159 | 26,315 Direct | -4.20% | Disposed | -24.2% (price as of 2026-08-21) |
| April 1, 2020 | AMT | S 10b5-1 | 1,229 | $205.81 | $252,940 | 27,469 Direct | -4.28% | Disposed | -14.2% (price as of 2026-08-21) |
| March 2, 2020 | AMT | S 10b5-1 | 1,278 | $229.03 | $292,700 | 26,160 Direct | -4.66% | Disposed | -22.9% (price as of 2026-08-21) |
| Feb. 3, 2020 | AMT | S 10b5-1 | 1,267 | $232.98 | $295,186 | 27,438 Direct | -4.41% | Disposed | -24.2% (price as of 2026-08-21) |
| Jan. 2, 2020 | AMT | S 10b5-1 | 1,261 | $229.68 | $289,626 | 28,705 Direct | -4.21% | Disposed | -23.1% (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 |
|---|---|---|---|---|---|---|---|
| March 4, 2026 | AMT | Option to Purchase Common Stock | Common Stock (33,482) | $94.71 | March 10, 2026 | 33,482 | Disposed |
| Aug. 2, 2024 | AMT | Option to Purchase Common Stock | Common Stock (21,537) | $94.57 | March 10, 2025 | 21,537 | Disposed |
| March 4, 2024 | AMT | Option to Purchase Common Stock | Common Stock (3,265) | $81.18 | March 10, 2024 | 3,265 | Disposed |
| Dec. 1, 2020 | AMT | Option to Purchase Common Stock | Common Stock (1,500) | $81.18 | March 10, 2024 | 1,500 | Disposed |
| Nov. 2, 2020 | AMT | Option to Purchase Common Stock | Common Stock (1,500) | $81.18 | March 10, 2024 | 1,500 | Disposed |
| Oct. 1, 2020 | AMT | Option to Purchase Common Stock | Common Stock (1,500) | $81.18 | March 10, 2024 | 1,500 | Disposed |
| Sept. 1, 2020 | AMT | Option to Purchase Common Stock | Common Stock (1,500) | $81.18 | March 10, 2024 | 1,500 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 7, 2025 | AEE | No securities are beneficially owned. | 0 | Direct |
| Aug. 9, 2018 | AMT | Common Stock | — | Direct |
| Aug. 9, 2018 | AMT | Option to Purchase Common Stock→ Common Stock (9,265) | 9,265 | Direct |
| Aug. 9, 2018 | AMT | Option to Purchase Common Stock→ Common Stock (21,537) | 21,537 | Direct |
| Aug. 9, 2018 | AMT | Option to Purchase Common Stock→ Common Stock (33,482) | 33,482 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
AMT
President and CEO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,000,000 | — | — | — | $2,280,000 | — | $45,757 | $14,854,505 |
| 2024 | $961,268 | — | — | — | $2,360,000 | — | $42,009 | $13,426,944 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.