Historical shareholding details of Oberweis Asset Management Inc holdings in Onto Innovation Inc. (ONTO)

Monthly changes of Oberweis Asset Management Inc shareholding in Onto Innovation Inc. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Mar 31, 2025	Oberweis Asset Management Inc	247,000	0.50%

Feb 28, 2025	Oberweis Asset Management Inc	247,000	0.50%

Jan 31, 2025	Oberweis Asset Management Inc	247,000	0.50%

Dec 31, 2024	Oberweis Asset Management Inc	129,235	0.26%
Dec 31, 2024	Oberweis Asset Management Inc	247,000	0.50%

Nov 30, 2024	Oberweis Asset Management Inc	247,000	0.50%

Oct 31, 2024	Oberweis Asset Management Inc	247,000	0.50%

Sep 30, 2024	Oberweis Asset Management Inc	129,235	0.26%
Sep 30, 2024	Oberweis Asset Management Inc	247,000	0.50%

Aug 31, 2024	Oberweis Asset Management Inc	247,000	0.50%

Jul 31, 2024	Oberweis Asset Management Inc	224,600	0.45%

Jun 30, 2024	Oberweis Asset Management Inc	129,545	0.26%
Jun 30, 2024	Oberweis Asset Management Inc	202,200	0.41%

May 31, 2024	Oberweis Asset Management Inc	202,200	0.41%

Apr 30, 2024	Oberweis Asset Management Inc	89,200	0.18%

Mar 31, 2024	Oberweis Asset Management Inc	106,930	0.22%
Mar 31, 2024	Oberweis Asset Management Inc	89,200	0.18%

Feb 29, 2024	Oberweis Asset Management Inc	89,200	0.18%

Jan 31, 2024	Oberweis Asset Management Inc	82,200	0.17%

Dec 31, 2023	Oberweis Asset Management Inc	82,200	0.17%

Nov 30, 2023	Oberweis Asset Management Inc	41,100	0.08%

Oct 31, 2023	Oberweis Asset Management Inc	41,100	0.08%

Sep 30, 2023	Oberweis Asset Management Inc	41,100	0.08%