MCKECHNIE MARK

PrivateCIK: 1775007
Location

FREMONT, CA

MCKECHNIE MARK (See Remarks) sold 99.1% of their position (98.55K shares) of ACM RESEARCH, INC. on the open market

Open‑market sale worth $4.49M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales
InsiderMCKECHNIE MARKCIK 1775007
IssuerACM RESEARCH, INC.CIK 1680062
Officer· See Remarks
Since Jun 2019
-98.55K
Net shares
Net seller
$4.49M
Total sold
6
Open market trades
0B · 6S
10
Total transactions
98.55K acquired · 197.10K disposed
Non-Derivative Transactions8

Class A Common Stock

Direct
M · Option Exercise

Shares

+60K

Price / share

$13.89

Trade value

$833.40K

% of position

6666.7%
3/12/2026
900.0060.90K

Class A Common Stock

Direct
S · Sale

Shares

11.91K

Price / share

$44.89

Trade value

$534.64K

% of position

19.6%
3/12/2026
60.90K48.99K

Class A Common Stock

Direct
S · Sale

Shares

47.11K

Price / share

$45.74

Trade value

$2.15M

% of position

96.2%
3/12/2026
48.99K1.88K

Class A Common Stock

Direct
S · Sale

Shares

982.00

Price / share

$46.55

Trade value

$45.71K

% of position

52.2%
3/12/2026
1.88K900.00

Class A Common Stock

Direct
M · Option Exercise

Shares

+38.55K

Price / share

$19.49

Trade value

$751.36K

% of position

4283.4%
3/12/2026
900.0039.45K

Class A Common Stock

Direct
S · Sale

Shares

8.64K

Price / share

$44.94

Trade value

$388.24K

% of position

21.9%
3/12/2026
39.45K30.81K

Class A Common Stock

Direct
S · Sale

Shares

29.35K

Price / share

$45.74

Trade value

$1.34M

% of position

95.2%
3/12/2026
30.81K1.46K

Class A Common Stock

Direct
S · Sale

Shares

564.00

Price / share

$46.57

Trade value

$26.27K

% of position

38.5%
3/12/2026
1.46K900.00
Total

Net shares

+0.00

Net value

-$2.91M

Derivative Transactions2

Stock Option

Direct
M · Option Exercise
Converts to

Class A Common Stock

60K shares

Shares

60K

Strike price

13.89

Held after

240K

Exercisable

3/12/2026

Stock Option

Direct
M · Option Exercise
Converts to

Class A Common Stock

38.55K shares

Shares

38.55K

Strike price

19.49

Held after

61.45K

Exercisable

3/12/2026
MCKECHNIE MARK — Insider Transaction (Form 4) Filed Mar 13, 2026 | Finecho