Chantelle Yvette Breithaupt

Companies

• Ambarella Inc.Board member Mar 4, 2025 to now¹
• Arista NetworksChief financial officer Feb 21, 2024 to now²
• Aspen Technology, Inc.Chief financial officer May 17, 2022 to Jan 3, 2024³
• ASPENTECH CorpChief financial officer Mar 24, 2021 to May 18, 2022⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Arista Networks ANET69,921 shares⁵$12.8M at $182.85Sep 1, 2026
• Ambarella Inc. AMBA8,091 shares⁶$506.9K at $62.65Sep 8, 2026
• AASPENTECH Corp0 shares⁷May 16, 2022
• ATAspen Technology, Inc.31,518 shares⁸Dec 29, 2023

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 8, 2026Granted 3,151 shares of Ambarella Inc.⁶
• Sep 1, 2026Sold 612 shares at $195.77 of Arista Networks⁵
• Aug 20, 2026Shares withheld for tax 6,145 shares at $186.45 of Arista Networks⁹
• Aug 20, 2026Exercised options 1,350 shares of Arista Networks⁹
• Aug 20, 2026Exercised options 10,920 shares of Arista Networks⁹
• May 26, 2026Sold 2,448 shares at $157.00 of Arista Networks¹⁰
• May 20, 2026Shares withheld for tax 6,144 shares at $141.58 of Arista Networks¹¹
• May 20, 2026Exercised options 1,350 shares of Arista Networks¹¹
• May 20, 2026Exercised options 10,916 shares of Arista Networks¹¹
• Apr 14, 2026Sold 8,890 shares at $155.02 of Arista Networks¹²
• Feb 20, 2026Shares withheld for tax 20,305 shares at $137.23 of Arista Networks¹³
• Feb 20, 2026Exercised options 14,400 shares of Arista Networks¹³
• Feb 20, 2026Exercised options 1,350 shares of Arista Networks¹³
• Feb 20, 2026Exercised options 15,864 shares of Arista Networks¹³
• Feb 20, 2026Exercised options 10,920 shares of Arista Networks¹³
• Nov 20, 2025Shares withheld for tax 5,457 shares at $124.81 of Arista Networks¹⁴
• Nov 20, 2025Exercised options 10,916 shares of Arista Networks¹⁴
• Sep 2, 2025Granted 2,498 shares of Ambarella Inc.¹⁵
• Aug 20, 2025Shares withheld for tax 5,455 shares at $132.78 of Arista Networks¹⁶
• Aug 20, 2025Exercised options 10,920 shares of Arista Networks¹⁶
• May 20, 2025Shares withheld for tax 5,478 shares at $96.70 of Arista Networks¹⁷
• May 20, 2025Exercised options 10,916 shares of Arista Networks¹⁷
• Feb 20, 2025Shares withheld for tax 28,491 shares at $103.92 of Arista Networks¹⁸
• Feb 20, 2025Exercised options 15,856 shares of Arista Networks¹⁸
• Feb 20, 2025Exercised options 43,668 shares of Arista Networks¹⁸