Chuan-Sheng Chiao

Insider

First SEC filing: Nov. 21, 2017 · Latest: Nov. 21, 2017

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 12 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

12 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 20, 2020	ACM	S	21,594	$38.57	$832,881	38,214 Direct	-36.11%	Disposed	68.4% (price as of 2026-08-21)
Dec. 15, 2019	ACM	A	6,503	—	—	6,503 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 15, 2019	ACM	M	6,814	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Dec. 15, 2019	ACM	A	8,617	—	—	59,808 Direct	+16.83%	Acquired	(price as of 2026-08-21)
Dec. 15, 2019	ACM	M	6,814	$38.16	$260,022	51,191 Direct	+15.35%	Acquired	70.2% (price as of 2026-08-21)
Dec. 15, 2018	ACM	A	10,182	—	—	10,182 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 15, 2018	ACM	M	10,027	—	—	10,027 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Dec. 15, 2018	ACM	A	12,534	—	—	44,377 Direct	+39.36%	Acquired	(price as of 2026-08-21)
Dec. 15, 2018	ACM	M	10,027	$27.91	$279,854	31,843 Direct	+45.96%	Acquired	132.7% (price as of 2026-08-21)
June 4, 2018	ACM	S	18,000	$33.40	$601,200	21,816 Direct	-45.21%	Disposed	94.5% (price as of 2026-08-21)
June 1, 2018	ACM	S	1,700	$33.31	$56,627	39,816 Direct	-4.09%	Disposed	95.0% (price as of 2026-08-21)
Dec. 15, 2017	ACM	A	7,041	—	—	7,041 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 15, 2017	ACM	M	7,714	—	—	7,714 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 15, 2017	ACM	A	9,643	$36.93	$356,116	41,516 Direct	+30.25%	Acquired	75.9% (price as of 2026-08-21)
Dec. 15, 2017	ACM	M	7,714	$36.93	$284,878	31,873 Direct	+31.93%	Acquired	75.9% (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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Dec. 15, 2019	ACM	Restricted Stock Unit	Common Stock (6,503)	—	—	6,503	Acquired
Dec. 15, 2019	ACM	Restricted Stock Unit	Common Stock (6,814)	—	—	6,814	Disposed
Dec. 15, 2018	ACM	Restricted Stock Unit	Common Stock (10,182)	—	—	10,182	Acquired
Dec. 15, 2018	ACM	Restricted Stock Unit	Common Stock (10,027)	—	—	10,027	Disposed
Dec. 15, 2017	ACM	Restricted Stock Unit	Common Stock (7,041)	—	—	7,041	Acquired
Dec. 15, 2017	ACM	Restricted Stock Unit	Common Stock (7,714)	—	—	7,714	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
Nov. 21, 2017	ACM	Common Stock	24,159	Direct
Nov. 21, 2017	ACM	Restricted Stock Units→ Common Stock (7,714)	7,714	Direct
Nov. 21, 2017	ACM	Restricted Stock Units→ Common Stock (10,027)	10,027	Direct
Nov. 21, 2017	ACM	Restricted Stock Units→ Common Stock (6,814)	6,814	Direct