Ambarella slides as investors digest cautious outlook and fresh downgrade after Q1 results

Ambarella, Inc. (AMBA) is down 20.2% today. Here is some analysis on what might have caused this price movement.

Analysis: The selloff appears tied to a post-earnings reset, with investors focusing on forward-looking risks rather than the quarter itself. While Ambarella’s Q1 fiscal 2027 results were roughly in line, commentary around supply-chain cost pressures and an analyst downgrade highlighting second-half 2026 demand risk likely amplified the downside.

Details:

Ambarella reported Q1 fiscal 2027 revenue of about $100 million (up year over year) and non-GAAP EPS of $0.11, alongside Q2 revenue guidance of $105 million to $111 million.

Management discussed elevated memory component pricing (DRAM/flash) and potential second-half supply constraints that could indirectly pressure customer demand and ordering patterns.

Inventory days rose meaningfully versus the prior quarter as the company intentionally built inventory ahead of new product ramps, which also contributed to cash outflows.

Summit Insights downgraded AMBA to Hold from Buy, citing a less attractive risk/reward profile and possible supply-chain inflation tightening that could weigh on customers later in 2026.

Sources:

GlobeNewswire, The Motley Fool, Investing.com

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$AMBA Insider Trading Activity

$AMBA insiders have traded $AMBA stock on the open market 27 times in the past 6 months. Of those trades, 0 have been purchases and 27 have been sales.

Here’s a breakdown of recent trading of $AMBA stock by insiders over the last 6 months:

FENG-MING WANG (CEO) has made 0 purchases and 11 sales selling 114,509 shares for an estimated $7,792,272.
CHI-HONG JU (Senior VP, Systems & GM, Asia) has made 0 purchases and 5 sales selling 19,719 shares for an estimated $1,311,463.
JOHN ALEXANDER YOUNG (CFO) has made 0 purchases and 6 sales selling 16,356 shares for an estimated $1,024,480.
CHAN W LEE (Chief Operations Officer) has made 0 purchases and 3 sales selling 12,776 shares for an estimated $725,011.
ELIZABETH M SCHWARTING sold 624 shares for an estimated $45,163
CHRISTOPHER B PAISLEY sold 500 shares for an estimated $36,090

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

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$AMBA Hedge Fund Activity

We have seen 161 institutional investors add shares of $AMBA stock to their portfolio, and 207 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

JERICHO CAPITAL ASSET MANAGEMENT L.P. removed 1,587,081 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $81,694,994
MILLENNIUM MANAGEMENT LLC added 1,342,687 shares (+790.5%) to their portfolio in Q1 2026, for an estimated $69,114,813
FULLER & THALER ASSET MANAGEMENT, INC. removed 848,092 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $43,655,535
SLATE PATH CAPITAL LP removed 814,400 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $41,921,240
BARCLAYS PLC removed 679,418 shares (-97.7%) from their portfolio in Q1 2026, for an estimated $34,973,041
FIFTHDELTA LTD added 546,538 shares (+inf%) to their portfolio in Q1 2026, for an estimated $28,133,043
MANUFACTURERS LIFE INSURANCE COMPANY, THE added 524,937 shares (+49.5%) to their portfolio in Q1 2026, for an estimated $27,021,132

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$AMBA Price Targets

Multiple analysts have issued price targets for $AMBA recently. We have seen 2 analysts offer price targets for $AMBA in the last 6 months, with a median target of $115.0.

Here are some recent targets:

Christopher Rolland from Susquehanna set a target price of $110.0 on 05/29/2026
Kevin Cassidy from Rosenblatt set a target price of $120.0 on 05/29/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.