30% off. Use code SUMMERSALE30 at checkout for 30% off for 12 months on Plus, Pro and Premium subscriptions. Subscribe now

Les Kohn

Track

Insider profile

Currently holds a position at Ambarella Inc

Performance

Overall performance
3.7
Performance over holding periods
3.7
30 days 90 days 120 days
Average return 3% 8.2% 15.1%
Success rate 74% 68% 82%
Transactions
37 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Chief Technology Officer, Director Ambarella Inc None -
Les Kohn's trades of Ambarella Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-12-02 2025-12-02
US Ambarella Inc (AMBA)
PrS Proposed sale
54,563
260.36
US$12,604 		54,563 260.36 US$12,604
2025-09-19 2025-09-17
US Ambarella Inc (AMBA)
S Sale
12,417 +2.5%
42.35
US$941,220 		12,417 +2.5% 42.35 US$941,220
2025-06-20 2025-06-17
US Ambarella Inc (AMBA)
S Sale
72,240 +24.2%
175.55
US$4,744,365 		72,240 +24.2% 175.55 US$4,744,365
2025-03-20 2025-03-18
US Ambarella Inc (AMBA)
S Sale
1,584 -0.2%
55.02
US$87,152 		1,584 -0.2% 55.02 US$87,152
2025-03-07 2025-03-06
US Ambarella Inc (AMBA)
S Sale
2,316 -0.2%
55.11
US$127,635 		2,316 -0.2% 55.11 US$127,635
2024-12-18 2024-12-16
US Ambarella Inc (AMBA)
S Sale
1,757 -0.2%
75.41
US$132,495 		1,757 -0.2% 75.41 US$132,495
2024-09-19 2024-09-17
US Ambarella Inc (AMBA)
S Sale
1,608 -0.2%
53.54
US$86,092 		1,608 -0.2% 53.54 US$86,092
2024-06-20 2024-06-18
US Ambarella Inc (AMBA)
S Sale
1,623 -0.2%
55.48
US$90,044 		1,623 -0.2% 55.48 US$90,044
2024-03-20 2024-03-18
US Ambarella Inc (AMBA)
S Sale
1,198 -0.1%
49.27
US$59,025 		1,198 -0.1% 49.27 US$59,025
2024-03-11 2024-03-08
US Ambarella Inc (AMBA)
S Sale
708 -0.1%
57.16
US$40,469 		708 -0.1% 57.16 US$40,469
2023-12-21 2023-12-19
US Ambarella Inc (AMBA)
S Sale
1,713 -0.2%
63.04
US$107,988 		1,713 -0.2% 63.04 US$107,988
2023-09-20 2023-09-18
US Ambarella Inc (AMBA)
S Sale
1,671 -0.2%
57.30
US$95,748 		1,671 -0.2% 57.30 US$95,748
2023-06-20 2023-06-20
US Ambarella Inc (AMBA)
S Sale
1,682 -0.2%
84.80
US$142,634 		1,682 -0.2% 84.80 US$142,634
2023-03-17 2023-03-17
US Ambarella Inc (AMBA)
S Sale
11,881 -1.3%
76.85
US$913,055 		11,881 -1.3% 76.85 US$913,055
2022-12-20 2022-12-16
US Ambarella Inc (AMBA)
S Sale
2,455 -0.3%
83.77
US$205,655 		2,455 -0.3% 83.77 US$205,655
2022-09-28 2022-09-26
US Ambarella Inc (AMBA)
S Sale
6,179 -0.7%
58.95
US$364,256 		6,179 -0.7% 58.95 US$364,256
2022-09-20 2022-09-16
US Ambarella Inc (AMBA)
S Sale
2,476 -0.3%
63.25
US$156,607 		2,476 -0.3% 63.25 US$156,607
2022-06-17 2022-06-16
US Ambarella Inc (AMBA)
S Sale
2,609 -0.3%
66.25
US$172,846 		2,609 -0.3% 66.25 US$172,846
2022-03-18 2022-03-16
US Ambarella Inc (AMBA)
S Sale
38,098 -4.1%
91.20
US$3,474,538 		38,098 -4.1% 91.20 US$3,474,538
2022-03-14 2022-03-14
US Ambarella Inc (AMBA)
S Sale
1,825 -0.2%
84.42
US$154,066 		1,825 -0.2% 84.42 US$154,066
2021-12-17 2021-12-16
US Ambarella Inc (AMBA)
S Sale
3,644 -0.4%
188.88
US$688,279 		3,644 -0.4% 188.88 US$688,279
2021-12-07 2021-12-03
US Ambarella Inc (AMBA)
S Sale
3,414 -0.4%
192.69
US$657,844 		3,414 -0.4% 192.69 US$657,844
2021-06-17 2021-06-16
US Ambarella Inc (AMBA)
S Sale
5,444 -0.6%
101.39
US$551,967 		5,444 -0.6% 101.39 US$551,967
2021-03-18 2021-03-16
US Ambarella Inc (AMBA)
S Sale
22,417 -2.5%
112.00
US$2,510,704 		22,417 -2.5% 112.00 US$2,510,704
2021-03-11 2021-03-09
US Ambarella Inc (AMBA)
S Sale
864 -0.1%
109.70
US$94,781 		864 -0.1% 109.70 US$94,781
2021-02-18 2021-02-16
US Ambarella Inc (AMBA)
PlS Planned sale
12,942 -1.5%
128.50
US$1,663,068 		12,942 -1.5% 128.50 US$1,663,068
2021-02-18 2021-02-16
US Ambarella Inc (AMBA)
PlS Planned sale
1,395 -0.2%
127.41
US$177,737 		1,395 -0.2% 127.41 US$177,737
2021-02-18 2021-02-16
US Ambarella Inc (AMBA)
PlS Planned sale
1,111 -0.1%
126.72
US$140,788 		1,111 -0.1% 126.72 US$140,788
2021-02-18 2021-02-16
US Ambarella Inc (AMBA)
PlS Planned sale
2,052 -0.2%
125.52
US$257,573 		2,052 -0.2% 125.52 US$257,573
2021-02-18 2021-02-16
US Ambarella Inc (AMBA)
PlS Planned sale
2,000 -0.2%
124.64
US$249,271 		2,000 -0.2% 124.64 US$249,271
2021-02-18 2021-02-16
US Ambarella Inc (AMBA)
PlS Planned sale
500 -0.1%
123.29
US$61,647 		500 -0.1% 123.29 US$61,647
2020-12-18 2020-12-16
US Ambarella Inc (AMBA)
PlS Planned sale
400 -0.0%
92.49
US$36,995 		400 -0.0% 92.49 US$36,995
2020-12-18 2020-12-16
US Ambarella Inc (AMBA)
PlS Planned sale
1,400 -0.2%
91.50
US$128,095 		1,400 -0.2% 91.50 US$128,095
2020-12-18 2020-12-16
US Ambarella Inc (AMBA)
PlS Planned sale
5,545 -0.6%
90.22
US$500,253 		5,545 -0.6% 90.22 US$500,253
2020-12-18 2020-12-16
US Ambarella Inc (AMBA)
PlS Planned sale
12,655 -1.4%
89.72
US$1,135,384 		12,655 -1.4% 89.72 US$1,135,384
2020-12-18 2020-12-16
US Ambarella Inc (AMBA)
S Sale
4,970 -0.6%
90.25
US$448,542 		4,970 -0.6% 90.25 US$448,542
2020-12-04 2020-12-04
US Ambarella Inc (AMBA)
PlS Planned sale
10,000 -1.1%
92.15
US$921,500 		10,000 -1.1% 92.15 US$921,500
2020-12-04 2020-12-02
US Ambarella Inc (AMBA)
PlS Planned sale
34 -0.0%
86.46
US$2,940 		34 -0.0% 86.46 US$2,940
2020-12-04 2020-12-02
US Ambarella Inc (AMBA)
PlS Planned sale
7,500 -0.8%
85.50
US$641,235 		7,500 -0.8% 85.50 US$641,235
2020-12-04 2020-12-02
US Ambarella Inc (AMBA)
PlS Planned sale
4,690 -0.5%
84.86
US$398,003 		4,690 -0.5% 84.86 US$398,003
2020-12-01 2020-11-27
US Ambarella Inc (AMBA)
PlS Planned sale
20,000 -2.2%
78.55
US$1,571,000 		20,000 -2.2% 78.55 US$1,571,000
2020-11-25 2020-11-24
US Ambarella Inc (AMBA)
PlS Planned sale
1,450 -0.2%
74.11
US$107,465 		1,450 -0.2% 74.11 US$107,465
2020-11-25 2020-11-24
US Ambarella Inc (AMBA)
PlS Planned sale
4,450 -0.5%
73.39
US$326,577 		4,450 -0.5% 73.39 US$326,577
2020-11-25 2020-11-24
US Ambarella Inc (AMBA)
PlS Planned sale
7,200 -0.8%
72.38
US$521,111 		7,200 -0.8% 72.38 US$521,111
2020-11-25 2020-11-24
US Ambarella Inc (AMBA)
PlS Planned sale
4,200 -0.4%
70.75
US$297,137 		4,200 -0.4% 70.75 US$297,137