Michael M Ludwig

Insider

First SEC filing: Oct. 15, 2018 · Latest: Oct. 15, 2018

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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.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 77 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

77 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 5, 2026	ASYS	M	8,081	—	—	33,069 Direct	+32.34%	Acquired	(price as of 2026-08-20)
March 5, 2026	ASYS	M	8,081	—	—	2,839 Direct	-74.00%	Disposed	(price as of 2026-08-20)
March 4, 2026	ASYS	A	2,839	—	—	2,839 Direct	—	Acquired	(price as of 2026-08-20)
March 6, 2025	ASYS	M	8,299	—	—	8,081 Direct	-50.67%	Disposed	(price as of 2026-08-20)
March 6, 2025	ASYS	M	8,299	—	—	24,988 Direct	+49.73%	Acquired	(price as of 2026-08-20)
March 5, 2025	ASYS	A	8,081	—	—	16,380 Direct	+97.37%	Acquired	(price as of 2026-08-20)
March 11, 2024	ASYS	A	2,000	$4.73	$9,460	16,689 Direct	+13.62%	Acquired	205.9% (price as of 2026-08-20)
March 7, 2024	ASYS	A	1,500	$4.91	$7,365	14,689 Direct	+11.37%	Acquired	194.7% (price as of 2026-08-20)
March 6, 2024	ASYS	A	8,299	—	—	8,299 Direct	—	Acquired	(price as of 2026-08-20)
March 6, 2024	ASYS	A	6,000	$4.85	$29,100	13,189 Direct	+83.46%	Acquired	198.4% (price as of 2026-08-20)
March 1, 2024	ASYS	M	4,189	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 1, 2024	ASYS	M	4,189	—	—	7,189 Direct	+139.63%	Acquired	(price as of 2026-08-20)
March 1, 2023	ASYS	A	4,189	—	—	4,189 Direct	—	Acquired	(price as of 2026-08-20)
March 1, 2023	ASYS	M	3,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 1, 2023	ASYS	M	3,000	—	—	3,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 13, 2023	ASYS	A	3,000	—	—	3,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 17, 2019	ROG	F	236	$146.00	$34,456	5,269 Direct	-4.29%	Disposed	-11.7% (price as of 2026-08-20)
Feb. 7, 2019	ROG	A	3,005	—	—	5,505 Direct	+120.20%	Acquired	(price as of 2026-08-20)
Feb. 7, 2019	ROG	A	3,756	—	—	6,256 Direct	+150.24%	Acquired	(price as of 2026-08-20)
Sept. 17, 2018	ROG	A	2,400	—	—	2,500 Direct	+2400.00%	Acquired	(price as of 2026-08-20)
Feb. 22, 2018	FORM	M	17,500	$10.37	$181,475	0 Direct	-100.00%	Disposed	996.3% (price as of 2026-08-20)
Feb. 22, 2018	FORM	S	17,500	$13.00	$227,500	240,387 Direct	-6.79%	Disposed	774.5% (price as of 2026-08-20)
Feb. 22, 2018	FORM	M	17,500	$10.37	$181,475	257,887 Direct	+7.28%	Acquired	996.3% (price as of 2026-08-20)
Feb. 21, 2018	FORM	M	25,000	$10.37	$259,250	17,500 Direct	-58.82%	Disposed	996.3% (price as of 2026-08-20)
Feb. 21, 2018	FORM	S	25,000	$13.05	$326,250	240,387 Direct	-9.42%	Disposed	771.2% (price as of 2026-08-20)
Feb. 21, 2018	FORM	M	25,000	$10.37	$259,250	265,387 Direct	+10.40%	Acquired	996.3% (price as of 2026-08-20)
Feb. 20, 2018	FORM	M	2,500	$10.37	$25,925	42,500 Direct	-5.56%	Disposed	996.3% (price as of 2026-08-20)
Feb. 20, 2018	FORM	S	2,500	$13.38	$33,450	240,387 Direct	-1.03%	Disposed	749.7% (price as of 2026-08-20)
Feb. 20, 2018	FORM	M	2,500	$10.37	$25,925	242,887 Direct	+1.04%	Acquired	996.3% (price as of 2026-08-20)
Feb. 15, 2018	FORM	M	30,000	$10.37	$311,100	45,000 Direct	-40.00%	Disposed	996.3% (price as of 2026-08-20)
Feb. 15, 2018	FORM	S	30,000	$12.73	$381,900	240,387 Direct	-11.10%	Disposed	793.1% (price as of 2026-08-20)
Feb. 15, 2018	FORM	M	30,000	$10.37	$311,100	270,387 Direct	+12.48%	Acquired	996.3% (price as of 2026-08-20)
Nov. 13, 2017	FORM	S	16,845	$17.50	$294,788	241,132 Direct	-6.53%	Disposed	549.7% (price as of 2026-08-20)
Aug. 23, 2017	FORM	M	10,000	$10.30	$103,000	0 Direct	-100.00%	Disposed	1003.8% (price as of 2026-08-20)
Aug. 23, 2017	FORM	S	10,000	$14.07	$140,700	257,977 Direct	-3.73%	Disposed	708.0% (price as of 2026-08-20)
Aug. 23, 2017	FORM	M	10,000	$10.30	$103,000	267,977 Direct	+3.88%	Acquired	1003.8% (price as of 2026-08-20)
Aug. 22, 2017	FORM	M	20,000	$10.30	$206,000	10,000 Direct	-66.67%	Disposed	1003.8% (price as of 2026-08-20)
Aug. 22, 2017	FORM	S	20,000	$14.34	$286,800	257,977 Direct	-7.19%	Disposed	692.8% (price as of 2026-08-20)
Aug. 22, 2017	FORM	M	20,000	$10.30	$206,000	277,977 Direct	+7.75%	Acquired	1003.8% (price as of 2026-08-20)
Aug. 21, 2017	FORM	M	10,000	$10.30	$103,000	30,000 Direct	-25.00%	Disposed	1003.8% (price as of 2026-08-20)
Aug. 21, 2017	FORM	S	10,000	$13.96	$139,600	257,977 Direct	-3.73%	Disposed	714.4% (price as of 2026-08-20)
Aug. 21, 2017	FORM	M	10,000	$10.30	$103,000	267,977 Direct	+3.88%	Acquired	1003.8% (price as of 2026-08-20)
Aug. 19, 2017	FORM	M	9,333	—	—	18,667 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Aug. 19, 2017	FORM	F	4,870	$14.05	$68,424	257,977 Direct	-1.85%	Disposed	709.2% (price as of 2026-08-20)
Aug. 19, 2017	FORM	M	9,333	—	—	262,847 Direct	+3.68%	Acquired	(price as of 2026-08-20)
July 20, 2017	FORM	A	26,000	—	—	26,000 Direct	—	Acquired	(price as of 2026-08-20)
May 28, 2017	FORM	M	10,000	—	—	10,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 28, 2017	FORM	F	5,218	$14.40	$75,139	253,514 Direct	-2.02%	Disposed	689.5% (price as of 2026-08-20)
May 28, 2017	FORM	M	10,000	—	—	258,732 Direct	+4.02%	Acquired	(price as of 2026-08-20)
May 5, 2017	FORM	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 5, 2017	FORM	F	5,637	$14.25	$80,327	248,732 Direct	-2.22%	Disposed	697.8% (price as of 2026-08-20)
May 5, 2017	FORM	M	15,000	—	—	254,369 Direct	+6.27%	Acquired	(price as of 2026-08-20)
May 1, 2017	FORM	M	46,350	—	—	256,748 Direct	+22.03%	Acquired	(price as of 2026-08-20)
May 1, 2017	FORM	F	17,379	$11.75	$204,203	239,369 Direct	-6.77%	Disposed	867.6% (price as of 2026-08-20)
May 1, 2017	FORM	A	46,350	—	—	46,350 Direct	—	Acquired	(price as of 2026-08-20)
May 1, 2017	FORM	M	46,350	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 27, 2017	FORM	S	10	$10.81	$108	240,387 Direct	0.00%	Disposed	951.7% (price as of 2026-08-20)
Aug. 19, 2016	FORM	A	28,000	—	—	28,000 Direct	—	Acquired	(price as of 2026-08-20)
June 17, 2016	FORM	S	1	$8.11	$8	240,397 Direct	0.00%	Disposed	1301.8% (price as of 2026-08-20)
June 2, 2016	FORM	S	3,692	$7.33	$27,062	210,398 Direct	-1.72%	Disposed	1451.0% (price as of 2026-08-20)
May 31, 2016	FORM	M	10,000	—	—	20,000 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 31, 2016	FORM	M	10,000	—	—	214,090 Direct	+4.90%	Acquired	(price as of 2026-08-20)
May 9, 2016	FORM	S	5,690	$6.80	$38,692	204,090 Direct	-2.71%	Disposed	1571.9% (price as of 2026-08-20)
May 6, 2016	FORM	S	5,733	$6.82	$39,099	194,780 Direct	-2.86%	Disposed	1567.0% (price as of 2026-08-20)
May 6, 2016	FORM	M	15,000	—	—	209,780 Direct	+7.70%	Acquired	(price as of 2026-08-20)
May 6, 2016	FORM	M	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 5, 2016	FORM	M	15,000	—	—	200,513 Direct	+8.09%	Acquired	(price as of 2026-08-20)
May 5, 2016	FORM	M	15,000	—	—	15,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 3, 2016	FORM	S	24,524	$7.14	$175,101	185,513 Direct	-11.68%	Disposed	1492.3% (price as of 2026-08-20)
May 2, 2016	FORM	M	63,600	—	—	210,037 Direct	+43.43%	Acquired	(price as of 2026-08-20)
May 2, 2016	FORM	M	63,600	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 6, 2016	FORM	A	63,600	—	—	63,600 Direct	—	Acquired	(price as of 2026-08-20)
March 18, 2016	FORM	S	12	$7.64	$92	240,398 Direct	0.00%	Disposed	1388.1% (price as of 2026-08-20)
Dec. 18, 2015	FORM	S	1	$8.72	$9	240,410 Direct	0.00%	Disposed	1203.8% (price as of 2026-08-20)
Sept. 18, 2015	FORM	S	40	$6.75	$270	240,411 Direct	-0.02%	Disposed	1584.3% (price as of 2026-08-20)
May 28, 2015	FORM	A	30,000	—	—	75,000 Direct	+66.67%	Acquired	(price as of 2026-08-20)
May 7, 2015	FORM	S	7,954	$8.28	$65,859	146,437 Direct	-5.15%	Disposed	1273.1% (price as of 2026-08-20)
May 6, 2015	FORM	M	15,000	—	—	154,391 Direct	+10.76%	Acquired	(price as of 2026-08-20)
May 6, 2015	FORM	M	15,000	—	—	45,000 Direct	-25.00%	Disposed	(price as of 2026-08-20)
May 6, 2015	FORM	S	7,955	$8.25	$65,629	139,391 Direct	-5.40%	Disposed	1278.1% (price as of 2026-08-20)
May 5, 2015	FORM	S	681	$8.20	$5,584	240,451 Direct	-0.28%	Disposed	1286.5% (price as of 2026-08-20)
May 5, 2015	FORM	M	15,000	—	—	147,346 Direct	+11.33%	Acquired	(price as of 2026-08-20)
May 5, 2015	FORM	M	15,000	—	—	60,000 Direct	-20.00%	Disposed	(price as of 2026-08-20)
May 5, 2015	FORM	S	32,116	$8.43	$270,738	132,346 Direct	-19.53%	Disposed	1248.6% (price as of 2026-08-20)
May 4, 2015	FORM	M	7,500	—	—	89,462 Direct	+9.15%	Acquired	(price as of 2026-08-20)
May 4, 2015	FORM	M	75,000	—	—	164,462 Direct	+83.83%	Acquired	(price as of 2026-08-20)
May 4, 2015	FORM	M	75,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 4, 2015	FORM	M	7,500	—	—	75,000 Direct	-9.09%	Disposed	(price as of 2026-08-20)
April 8, 2015	FORM	A	75,000	—	—	75,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 11, 2015	FORM	S	3,707	$8.52	$31,584	72,087 Direct	-4.89%	Disposed	1234.4% (price as of 2026-08-20)
Feb. 10, 2015	FORM	M	8,334	—	—	75,794 Direct	+12.35%	Acquired	(price as of 2026-08-20)
Feb. 10, 2015	FORM	M	8,334	—	—	82,500 Direct	-9.17%	Disposed	(price as of 2026-08-20)
May 5, 2014	FORM	M	750	—	—	54,239 Direct	+1.40%	Acquired	(price as of 2026-08-20)
May 5, 2014	FORM	M	7,500	—	—	61,739 Direct	+13.83%	Acquired	(price as of 2026-08-20)
May 5, 2014	FORM	A	45,000	—	—	114,084 Direct	+65.14%	Acquired	(price as of 2026-08-20)
May 5, 2014	FORM	M	750	—	—	113,334 Direct	-0.66%	Disposed	(price as of 2026-08-20)
May 5, 2014	FORM	M	7,500	—	—	105,834 Direct	-6.62%	Disposed	(price as of 2026-08-20)
Feb. 28, 2014	FORM	S	6,139	$7.11	$43,648	53,489 Direct	-10.30%	Disposed	1499.0% (price as of 2026-08-20)
Feb. 27, 2014	FORM	M	15,972	—	—	59,628 Direct	+36.59%	Acquired	(price as of 2026-08-20)
Feb. 27, 2014	FORM	A	444	—	—	31,944 Direct	+1.41%	Acquired	(price as of 2026-08-20)

Showing latest 100 of 137 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
March 5, 2026	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (8,081)	—	March 5, 2026	8,081	Disposed
March 4, 2026	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (2,839)	—	March 4, 2027	2,839	Acquired
March 6, 2025	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (8,299)	—	March 6, 2025	8,299	Disposed
March 5, 2025	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (8,081)	—	March 5, 2026	8,081	Acquired
March 6, 2024	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (8,299)	—	—	8,299	Acquired
March 1, 2024	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (4,189)	—	—	4,189	Disposed
March 1, 2023	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (4,189)	—	—	4,189	Acquired
March 1, 2023	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (0)	—	—	3,000	Disposed
Jan. 13, 2023	ASYS	Restricted Stock Units	Amtech Systems, Inc. $0.01 par value common stock (3,000)	—	—	3,000	Acquired
Feb. 22, 2018	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (17,500)	$10.37	April 29, 2018	17,500	Disposed
Feb. 21, 2018	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (25,000)	$10.37	April 29, 2018	25,000	Disposed
Feb. 20, 2018	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (2,500)	$10.37	April 29, 2018	2,500	Disposed
Feb. 15, 2018	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (30,000)	$10.37	April 29, 2018	30,000	Disposed
Aug. 23, 2017	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$10.30	Nov. 10, 2017	10,000	Disposed
Aug. 22, 2017	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (20,000)	$10.30	Nov. 10, 2017	20,000	Disposed
Aug. 21, 2017	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$10.30	Nov. 10, 2017	10,000	Disposed
Aug. 19, 2017	FORM	Restricted Stock Units	Common Stock (9,333)	$0.00	—	9,333	Disposed
July 20, 2017	FORM	Restricted Stock Units	Common Stock (26,000)	$0.00	—	26,000	Acquired
May 28, 2017	FORM	Restricted Stock Units	Common Stock (10,000)	$0.00	—	10,000	Disposed
May 5, 2017	FORM	Restricted Stock Units	Common Stock (15,000)	$0.00	—	15,000	Disposed
May 1, 2017	FORM	Performance Shares	Common Stock (46,350)	$0.00	—	46,350	Acquired
May 1, 2017	FORM	Performance Shares	Common Stock (46,350)	$0.00	—	46,350	Disposed
Aug. 19, 2016	FORM	Restricted Stock Units	Common Stock (28,000)	$0.00	—	28,000	Acquired
May 31, 2016	FORM	Restricted Stock Units	Common Stock (10,000)	$0.00	—	10,000	Disposed
May 6, 2016	FORM	Restricted Stock Units	Common Stock (15,000)	$0.00	—	15,000	Disposed
May 5, 2016	FORM	Restricted Stock Units	Common Stock (15,000)	$0.00	—	15,000	Disposed
May 2, 2016	FORM	Performance Shares	Common Stock (63,600)	$0.00	—	63,600	Disposed
April 6, 2016	FORM	Performance Shares	Common Stock (63,600)	$0.00	—	63,600	Acquired
May 28, 2015	FORM	Restricted Stock Units	Common Stock (30,000)	$0.00	—	30,000	Acquired
May 6, 2015	FORM	Restricted Stock Units	Common Stock (15,000)	$0.00	—	15,000	Disposed
May 5, 2015	FORM	Restricted Stock Units	Common Stock (0)	$0.00	—	15,000	Disposed
May 4, 2015	FORM	Performance Shares	Common Stock (75,000)	$0.00	—	75,000	Disposed
May 4, 2015	FORM	Restricted Stock Units	Common Stock (7,500)	$0.00	—	7,500	Disposed
April 8, 2015	FORM	Performance Shares	Common Stock (75,000)	$0.00	—	75,000	Acquired
Feb. 10, 2015	FORM	Restricted Stock Units	Common Stock (8,334)	$0.00	—	8,334	Disposed
May 5, 2014	FORM	Restricted Stock Units	Common Stock (45,000)	$0.00	—	45,000	Acquired
May 5, 2014	FORM	Restricted Stock Units	Common Stock (750)	$0.00	—	750	Disposed
May 5, 2014	FORM	Restricted Stock Units	Common Stock (7,500)	$0.00	—	7,500	Disposed
Feb. 27, 2014	FORM	Performance Shares	Common Stock (444)	$0.00	—	444	Acquired
Feb. 27, 2014	FORM	Performance Shares	Common Stock (15,972)	$0.00	—	15,972	Disposed
Feb. 10, 2014	FORM	Restricted Stock Units	Common Stock (8,333)	$0.00	—	8,333	Disposed
Jan. 28, 2014	FORM	Performance Shares	Common Stock (31,500)	$0.00	—	31,500	Acquired
May 6, 2013	FORM	Restricted Stock Units	Common Stock (7,500)	$0.00	—	7,500	Disposed
May 6, 2013	FORM	Restricted Stock Units	Common Stock (750)	$0.00	—	750	Disposed
May 6, 2013	FORM	Restricted Stock Units	Common Stock (45,000)	$0.00	—	45,000	Acquired
Feb. 11, 2013	FORM	Restricted Stock Units	Common Stock (8,333)	$0.00	—	8,333	Disposed
May 4, 2012	FORM	Restricted Stock Units	Common Stock (25,000)	$0.00	—	25,000	Acquired
May 4, 2012	FORM	Restricted Stock Units	Common Stock (750)	$0.00	—	750	Disposed
May 4, 2012	FORM	Restricted Stock Units	Common Stock (7,500)	$0.00	—	7,500	Disposed
Oct. 22, 2004	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (10,000)	$6.00	April 19, 2011	10,000	Disposed
Oct. 22, 2004	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (5,000)	$6.00	April 19, 2011	5,000	Disposed
Oct. 22, 2004	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (8,167)	$6.00	April 19, 2011	8,167	Disposed
Oct. 22, 2004	FORM	Non-Qualified Stock Option (right to buy)	Common Stock (1,833)	$6.50	Jan. 17, 2012	1,833	Disposed
Aug. 14, 2003	FORM	Stock option (right to buy)	Common Stock (5,850)	$19.50	Aug. 14, 2013	5,850	Acquired

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

Initial ownership (Form 3) 8 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Oct. 15, 2018	ROG	Capital (Common) Stock	100	Direct
Sept. 19, 2018	ROG	Capital (Common) Stock	100	Direct
July 27, 2012	FORM	Restricted Stock Units→ Common Stock	—	Direct
May 18, 2011	FORM	Common Stock	24,366	Direct
May 18, 2011	FORM	Non-Qualified Stock Option (right to buy)→ Common Stock (8,334)	8,334	Direct
May 18, 2011	FORM	Non-Qualified Stock Option (right to buy)→ Common Stock (40,000)	40,000	Direct
May 18, 2011	FORM	Non-Qualified Stock Option (right to buy)→ Common Stock (75,000)	75,000	Direct
May 18, 2011	FORM	Restricted Stock Units→ Common Stock (33,000)	33,000	Direct