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INSIDRA

Trading Intelligence

CP
Christopher B Paisley
Director

Christopher B Paisley insider trades: Ambarella (AMBA) stock buys and sales

Director, Ambarella Last trade Sep 25, 2026 333 Form 4 filings
$4.6M
Sold, last 12 months
9 sales
$0
Bought, last 12 months
0 buys
161
Open-market trades
since 2008
12
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Christopher reports to the SEC

AMBA
AMBAAmbarella
Director · last filing Sep 28, 2026
-$2.8M
FSLY
FSLYFastly
Director · last filing Sep 2, 2026
-$2.2M
EQIX
EQIXEquinix
Director · last filing Aug 18, 2026
-$13.0M
+$406K
FTNT
FTNTFortinet
Director · last filing Jun 21, 2021
-$7.6M
FIT
FITFitbit
Director · last filing May 26, 2020
+$135K
BBNK
BBNKBridge Capital Holdings
Director · last filing Jul 2, 2015
No market trades

and 6 more companies

Open-market buys and sales

161 trades reported on SEC Form 4, newest first

DateStockTypeValue
Sep 25, 2026AMBA↓ Sell$18K
Aug 31, 2026FSLY↓ Sell$69K
Aug 18, 2026EQIX↓ Sell$138K
Aug 3, 2026EQIX↓ Sell$4.1M
Jun 26, 2026AMBA↓ Sell$16K
May 29, 2026FSLY↓ Sell$17K
May 18, 2026EQIX↓ Sell$133K
Feb 18, 2026EQIX↓ Sell$95K
Nov 18, 2025EQIX↓ Sell$39K
Aug 18, 2025EQIX↓ Sell$59K
Jun 25, 2025AMBA↓ Sell$63K
May 16, 2025EQIX↓ Sell$87K
Mar 25, 2025AMBA↓ Sell$28K
Feb 18, 2025EQIX↓ Sell$114K
Dec 26, 2024AMBA↓ Sell$111K
Nov 18, 2024EQIX↓ Sell$89K
Sep 25, 2024AMBA↓ Sell$27K
Aug 16, 2024EQIX↓ Sell$83K
May 16, 2024EQIX↓ Sell$81K
Feb 20, 2024FSLY↓ Sell$16K
Feb 16, 2024EQIX↓ Sell$86K
Dec 26, 2023AMBA↓ Sell$32K
Nov 20, 2023FSLY↓ Sell$18K
Nov 17, 2023EQIX↓ Sell$59K
Aug 22, 2023FSLY↓ Sell$19K
Aug 16, 2023EQIX↓ Sell$57K
May 16, 2023EQIX↓ Sell$55K
Feb 16, 2023EQIX↓ Sell10b5-1$53K
Nov 16, 2022EQIX↓ Sell$33K
Aug 16, 2022EQIX↓ Sell$53K
Jun 13, 2022AMBA↓ Sell$55K
May 17, 2022EQIX↓ Sell$33K
Mar 29, 2022AMBA↓ Sell$25K
Mar 16, 2022AMBA↓ Sell$66K
Feb 16, 2022EQIX↓ Sell$34K
Dec 6, 2021AMBA↓ Sell$140K
Nov 16, 2021EQIX↓ Sell$60K
Nov 5, 2021FSLY↓ Sell$100K
Sep 3, 2021AMBA↓ Sell$97K
Aug 16, 2021FSLY↓ Sell$42K
Aug 16, 2021EQIX↓ Sell$163K
Jun 8, 2021AMBA↓ Sell$147K
May 17, 2021FSLY↓ Sell$42K
May 17, 2021EQIX↓ Sell$143K
Mar 9, 2021AMBA↓ Sell$165K
Feb 16, 2021FSLY↓ Sell$1.5M
Feb 16, 2021EQIX↓ Sell$145K
Dec 8, 2020AMBA↓ Sell$180K
Nov 17, 2020FSLY↓ Sell$381K
Nov 16, 2020EQIX↓ Sell$153K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other AMBA insiders

Open-market trades in the last 12 months

John Alexander Young
CFO
6 sales
Sep 18, 2026
Feng-Ming Wang
CEO
6 sales
Sep 17, 2026
Chan W Lee
Chief Operations Officer
3 sales
Sep 17, 2026
Chi-Hong Ju
Senior VP, Systems & GM
7 sales
Sep 17, 2026
Yun-Lung Chen
VP, Business Dev. & Marketing
2 sales
Jul 9, 2026
Elizabeth M Schwarting
Director
1 sale
Dec 16, 2025

About Christopher B Paisley's insider trades

Christopher B Paisley is a director at Ambarella (AMBA). Since Feb 20, 2008, Christopher has reported 9 open-market purchases worth $828K and 152 sales worth $26.4M on SEC Form 4. In the last 12 months: 9 sales ($4.6M).

1 sale (0% of the value sold) was made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so it says little about how the insider sees the stock today.

Their filings also include option exercises (208 filings), grants and awards (82 filings), conversions (5 filings), shares returned to the company (4 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every AMBA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.