Robert Joseph Meyer JR

CIK 1363889 · View on SEC EDGAR ↗

Insider

First SEC filing: April 6, 2021 · Latest: April 6, 2021

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Insider transactions

0 buys (P) 2 sells (S) Net: $-1,726,145 + 73 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

73 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
July 29, 2026 AMT S 5,000 $178.89 $894,450 21,428 Direct -18.92% Disposed -0.9% (price as of 2026-08-20)
Feb. 27, 2026 AMT S 4,454 $186.73 $831,695 24,461 Direct -15.40% Disposed -5.1% (price as of 2026-08-20)
Feb. 27, 2025 AMT S 2,939 $202.18 $594,207 26,210 Direct -10.08% Disposed -12.3% (price as of 2026-08-20)
Feb. 26, 2025 AMT S 2,724 $201.12 $547,851 29,149 Direct -8.55% Disposed -11.8% (price as of 2026-08-20)
Aug. 2, 2024 AMT S 2,181 $232.93 $508,020 31,873 Direct -6.40% Disposed -23.9% (price as of 2026-08-20)
Nov. 21, 2022 AMT S 1,000 $219.74 $219,740 26,010 Direct -3.70% Disposed -19.3% (price as of 2026-08-20)
March 15, 2022 AMT S 220 $236.19 $51,962 26,914 Direct -0.81% Disposed -24.9% (price as of 2026-08-20)
March 15, 2022 AMT S 2,580 $235.72 $608,158 27,134 Direct -8.68% Disposed -24.8% (price as of 2026-08-20)
July 30, 2021 AMT S 700 $285.44 $199,808 27,242 Direct -2.51% Disposed -37.9% (price as of 2026-08-20)
July 30, 2021 AMT S 4,589 $284.81 $1,306,993 27,942 Direct -14.11% Disposed -37.8% (price as of 2026-08-20)
Dec. 10, 2020 AMT S 1,100 $220.21 $242,231 29,698 Direct -3.57% Disposed -19.5% (price as of 2026-08-20)
May 8, 2020 AMT S 10b5-1 500 $238.77 $119,385 30,681 Direct -1.60% Disposed -25.7% (price as of 2026-08-20)
May 8, 2020 AMT S 10b5-1 5,939 $238.05 $1,413,779 31,181 Direct -16.00% Disposed -25.5% (price as of 2026-08-20)
Nov. 6, 2019 AMT S 1,000 $206.78 $206,780 28,743 Direct -3.36% Disposed -14.3% (price as of 2026-08-20)
May 15, 2019 AMT S 10b5-1 9,549 $199.42 $1,904,262 29,609 Direct -24.39% Disposed -11.1% (price as of 2026-08-20)
May 15, 2019 AMT S 10b5-1 7,368 $198.73 $1,464,243 39,158 Direct -15.84% Disposed -10.8% (price as of 2026-08-20)
May 15, 2019 AMT S 10b5-1 2,400 $197.72 $474,528 46,526 Direct -4.91% Disposed -10.3% (price as of 2026-08-20)
May 14, 2019 AMT S 10b5-1 14,554 $198.17 $2,884,166 29,609 Direct -32.96% Disposed -10.5% (price as of 2026-08-20)
May 14, 2019 AMT S 10b5-1 10,297 $197.41 $2,032,731 44,163 Direct -18.91% Disposed -10.2% (price as of 2026-08-20)
Nov. 7, 2018 AMT S 10b5-1 18,585 $156.90 $2,915,986 31,609 Direct -37.03% Disposed 13.0% (price as of 2026-08-20)
Nov. 7, 2018 AMT S 10b5-1 5,000 $157.39 $786,950 26,609 Direct -15.82% Disposed 12.6% (price as of 2026-08-20)
Nov. 6, 2018 AMT S 10b5-1 8,767 $155.42 $1,362,567 39,216 Direct -18.27% Disposed 14.1% (price as of 2026-08-20)
Nov. 6, 2018 AMT S 10b5-1 12,607 $156.07 $1,967,574 26,609 Direct -32.15% Disposed 13.6% (price as of 2026-08-20)
May 1, 2017 AMT S 18,963 $126.59 $2,400,526 22,893 Direct -45.31% Disposed 40.1% (price as of 2026-08-20)
April 28, 2017 AMT S 21,690 $125.78 $2,728,168 26,060 Direct -45.42% Disposed 41.0% (price as of 2026-08-20)
June 9, 2016 AMT S 3,106 $108.68 $337,560 21,386 Direct -12.68% Disposed 63.1% (price as of 2026-08-20)
May 16, 2016 AMT S 15,601 $106.50 $1,661,506 24,299 Direct -39.10% Disposed 66.5% (price as of 2026-08-20)

Showing latest 100 of 201 transactions

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 8, 2020 AMT Option to Purchase Common Stock Common Stock (6,439) $94.71 March 10, 2026 6,439 Disposed
May 15, 2019 AMT Option to Purchase Common Stock Common Stock (19,317) $94.71 March 10, 2026 19,317 Disposed
May 14, 2019 AMT Option to Purchase Common Stock Common Stock (24,851) $94.57 March 10, 2025 24,851 Disposed
Nov. 7, 2018 AMT Option to Purchase Common Stock Common Stock (23,585) $81.18 March 10, 2024 23,585 Disposed
Nov. 6, 2018 AMT Option to Purchase Common Stock Common Stock (21,374) $76.90 March 11, 2023 21,374 Disposed
May 1, 2017 AMT Option to Purchase Common Stock Common Stock (15,796) $62.00 March 12, 2022 15,796 Disposed
April 28, 2017 AMT Option to Purchase Common Stock Common Stock (10,000) $43.11 March 10, 2020 10,000 Disposed
April 28, 2017 AMT Option to Purchase Common Stock Common Stock (11,690) $50.78 March 10, 2021 11,690 Disposed
May 16, 2016 AMT Option to Purchase Common Stock Common Stock (1,250) $25.43 Dec. 1, 2018 1,250 Disposed
May 16, 2016 AMT Option to Purchase Common Stock Common Stock (2,552) $39.84 June 1, 2020 2,552 Disposed
May 16, 2016 AMT Option to Purchase Common Stock Common Stock (11,799) $28.39 March 10, 2019 11,799 Disposed
March 10, 2016 AMT Option to Purchase Common Stock Common Stock (25,756) $94.71 March 10, 2026 25,756 Acquired
March 10, 2015 AMT Option to Purchase Common Stock Common Stock (24,851) $94.57 March 10, 2025 24,851 Acquired
Aug. 7, 2014 AMT Option to Purchase Common Stock Common Stock (5,000) $25.43 Dec. 1, 2018 5,000 Disposed
June 1, 2014 AMT Restricted Stock Units Common Stock (219) — — 219 Disposed
March 12, 2014 AMT Restricted Stock Units Common Stock (1,109) — — 1,109 Disposed
March 11, 2014 AMT Restricted Stock Units Common Stock (1,342) — — 1,342 Disposed
March 10, 2014 AMT Restricted Stock Units Common Stock (870) — — 870 Disposed
March 10, 2014 AMT Restricted Stock Units Common Stock (985) — — 985 Disposed
March 10, 2014 AMT Option to Purchase Common Stock Common Stock (23,585) $81.18 March 10, 2024 23,585 Acquired
March 10, 2014 AMT Restricted Stock Units Common Stock (4,312) — — 4,312 Acquired
June 1, 2013 AMT Restricted Stock Units Common Stock (220) — — 220 Disposed
March 12, 2013 AMT Restricted Stock Units Common Stock (1,109) — — 1,109 Disposed
March 11, 2013 AMT Option to Purchase Conmon Stock Common Stock (21,374) $76.90 March 11, 2013 21,374 Acquired
March 11, 2013 AMT Restricted Stock Units Common Stock (5,365) — — 5,365 Acquired
March 10, 2013 AMT Restricted Stock Units Common Stock (1,211) — — 1,211 Disposed
March 10, 2013 AMT Restricted Stock Units Common Stock (870) — — 870 Disposed
March 10, 2013 AMT Restricted Stock Units Common Stock (985) — — 985 Disposed
Dec. 1, 2012 AMT Restricted Stock Units Common Stock (2,232) — — 2,232 Disposed
June 1, 2012 AMT Restricted Stock Units Common Stock (220) — — 220 Disposed
March 14, 2012 AMT Option to Purchase Common Stock Common Stock (6,250) $25.43 Dec. 1, 2018 6,250 Disposed
March 12, 2012 AMT Option to Purchase Common Stock Common Stock (15,796) $62.00 March 12, 2022 15,796 Acquired
March 12, 2012 AMT Restricted Stock Units Common Stock (4,436) — — 4,436 Acquired
March 10, 2012 AMT Restricted Stock Units Common Stock (1,211) — — 1,211 Disposed
March 10, 2012 AMT Restricted Stock Units Common Stock (870) — — 870 Disposed
March 10, 2012 AMT Restricted Stock Units Common Stock (985) — — 985 Disposed
Dec. 1, 2011 AMT Restricted Stock Units Class A Common Stock (2,232) — — 2,232 Disposed
Aug. 30, 2011 AMT Option to Purchase Class A Common Stock Class A Common Stock (6,250) $25.43 Dec. 1, 2018 6,250 Disposed
June 1, 2011 AMT Restricted Stock Units Class A Common Stock (220) — — 220 Disposed
March 10, 2011 AMT Option to Purchase Class A Common Stock Class A Common Stock (11,690) $50.78 March 10, 2021 11,690 Acquired
March 10, 2011 AMT Restricted Stock Units Class A Common Stock (3,939) — — 3,939 Acquired
March 10, 2011 AMT Restricted Stock Units Class A Common Stock (1,211) — — 1,211 Disposed
March 10, 2011 AMT Restricted Stock Units Class A Common Stock (870) — — 870 Disposed
Dec. 1, 2010 AMT Restricted Stock Units Class A Common Stock (2,233) — — 2,233 Disposed
Aug. 19, 2010 AMT Option to Purchase Class A Common Stock Class A Common Stock (3,934) $28.39 March 10, 2019 3,934 Disposed
June 1, 2010 AMT Option to Purchase Class A Common Stock Class A Common Stock (2,552) $39.84 June 1, 2020 2,552 Acquired
June 1, 2010 AMT Restricted Stock Units Class A Common Stock (879) — — 879 Acquired
March 10, 2010 AMT Option to Purchase Class A Common Stock Class A Common Stock (10,000) $43.11 March 10, 2020 10,000 Acquired
March 10, 2010 AMT Restricted Stock Units Class A Common Stock (3,480) — — 3,480 Acquired
March 10, 2010 AMT Restrcited Stock Units Class A Common Stock (1,211) — — 1,211 Disposed
Dec. 4, 2009 AMT Option to Purchase Class A Common Stock Class A Common Stock (6,250) $25.43 Dec. 1, 2018 6,250 Disposed
Dec. 1, 2009 AMT Restricted Stock Units Class A Common Stock (2,233) — — 2,233 Disposed
March 10, 2009 AMT Option to Purchase Class A Common Stock Class A Common Stock (15,733) $28.39 March 10, 2019 15,733 Acquired
March 10, 2009 AMT Restricted Stock Units Class A Common Stock (4,844) — — 4,844 Acquired
Dec. 1, 2008 AMT Option to purchase Class A Common Stock Class A Common Stock (25,000) $25.43 Dec. 1, 2018 25,000 Acquired
Dec. 1, 2008 AMT Restricted Stock Units Class A Common Stock (8,930) — — 8,930 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).