Chi Hong Ju Ambarella Inc (AMBA) insider trading activity

Chi Hong Ju is Sr. Vice President, Systems of AMBARELLA INC. Currently has a direct ownership of 170,087 shares of AMBA, which is worth approximately $14.6 Million. The most recent transaction as insider was on Sep 17, 2025, when has been sold 1,168 shares (Ordinary Shares) at a price of $79.43 per share, resulting in proceeds of $92,774. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 170K

0.55% 3M change

1.34% 12M change

Total Value Held $14.6 Million

Chi-Hong Ju Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Sep 17 2025	SELL Open market or private sale	$92,774 $79.43 p/Share	1,168 Reduced 0.68%	170,087 Ordinary Shares
Jun 17 2025	SELL Open market or private sale	$57,904 $52.26 p/Share	1,108 Reduced 0.64%	171,032 Ordinary Shares
Mar 18 2025	SELL Open market or private sale	$56,890 $55.02 p/Share	1,034 Reduced 0.6%	172,140 Ordinary Shares
Mar 06 2025	SELL Open market or private sale	$102,449 $55.11 p/Share	1,859 Reduced 1.06%	172,940 Ordinary Shares
Mar 05 2025	BUY Grant, award, or other acquisition	-	4,773 Added 2.66%	174,799 Ordinary Shares
Feb 28 2025	BUY Grant, award, or other acquisition	-	12,388 Added 6.79%	170,026 Ordinary Shares
Dec 16 2024	SELL Open market or private sale	$79,029 $75.41 p/Share	1,048 Reduced 0.66%	157,638 Ordinary Shares
Dec 09 2024	SELL Open market or private sale	$387,483 $75.71 p/Share	5,118 Reduced 3.12%	158,686 Ordinary Shares
Dec 09 2024	SELL Bona fide gift	-	593 Reduced 0.36%	163,804 Ordinary Shares
Dec 04 2024	SELL Bona fide gift	-	5,000 Reduced 2.95%	164,397 Ordinary Shares
Sep 17 2024	SELL Open market or private sale	$56,217 $53.54 p/Share	1,050 Reduced 0.61%	172,397 Ordinary Shares
Jun 26 2024	SELL Open market or private sale	$317,400 $52.9 p/Share	6,000 Reduced 3.35%	173,193 Ordinary Shares
Jun 21 2024	SELL Open market or private sale	$494,217 $55.53 p/Share	8,900 Reduced 4.73%	179,193 Ordinary Shares
Jun 21 2024	BUY Exercise of conversion of derivative security	$346,388 $38.92 p/Share	8,900 Added 4.52%	188,093 Ordinary Shares
Jun 18 2024	SELL Open market or private sale	$58,753 $55.48 p/Share	1,059 Reduced 0.59%	179,193 Ordinary Shares
Jun 10 2024	SELL Open market or private sale	$108,962 $57.5 p/Share	1,895 Reduced 1.04%	180,252 Ordinary Shares
Jun 07 2024	SELL Open market or private sale	$130,389 $56.79 p/Share	2,296 Reduced 1.24%	182,147 Ordinary Shares
Mar 18 2024	SELL Open market or private sale	$38,332 $49.27 p/Share	778 Reduced 0.42%	184,443 Ordinary Shares
Mar 08 2024	SELL Open market or private sale	$29,094 $57.16 p/Share	509 Reduced 0.27%	185,003 Ordinary Shares
Mar 07 2024	BUY Grant, award, or other acquisition	-	1,224 Added 0.66%	185,512 Ordinary Shares
Feb 29 2024	BUY Grant, award, or other acquisition	-	15,898 Added 7.94%	184,288 Ordinary Shares
Dec 19 2023	SELL Open market or private sale	$67,704 $63.04 p/Share	1,074 Reduced 0.63%	168,390 Ordinary Shares
Sep 18 2023	SELL Open market or private sale	$60,050 $57.3 p/Share	1,048 Reduced 0.61%	169,464 Ordinary Shares
Jul 07 2023	SELL Open market or private sale	$347,774 $81.81 p/Share	4,251 Reduced 2.43%	170,349 Ordinary Shares
Jun 20 2023	SELL Open market or private sale	$86,072 $84.8 p/Share	1,015 Reduced 0.58%	174,600 Ordinary Shares

Chi Hong Ju

Sr. Vice President, Systems

Santa Clara, CA

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