POET slides as investors digest cancelled Celestial AI/Marvell purchase orders and related fallout

By: Quiver PriceTracker

Posted: 6 days ago / April 29, 2026 2:51 p.m. UTC

POET

POET Technologies Inc. (POET) is down 14.4% today. Here is some analysis on what might have caused this price movement.

Analysis: The stock appears to be extending a selloff after the company disclosed that all purchase orders tied to Celestial AI (now part of Marvell) were cancelled. The cancellation increases uncertainty around near-term commercialization timelines and has likely amplified risk concerns around customer concentration and potential financing needs.

Details:

The company announced on April 27, 2026 that all purchase orders it had received from Celestial AI were cancelled, including initial production units that were first discussed publicly in an April 25, 2023 update.

The notice of cancellation was provided in writing on April 23, 2026, and the stated basis was alleged disclosure of purchase-order and shipping information in violation of confidentiality obligations.

The company also noted it is continuing work to fulfill product deliveries for other customers, including a previously disclosed purchase order valued at approximately $5 million.

Additional volatility may be coming from the emergence of shareholder litigation/investigation announcements following the purchase-order cancellation disclosure.

Sources:

POET Technologies, GlobeNewswire, Simply Wall St

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

EARLY ACCESS

Receive POET Data Alerts

Real-time alerts on filings, insider trades, and market signals — before everyone else.

Get Alerts →

$POET Hedge Fund Activity

We have seen 63 institutional investors add shares of $POET stock to their portfolio, and 38 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

MMCAP INTERNATIONAL INC. SPC removed 2,059,035 shares (-57.4%) from their portfolio in Q4 2025, for an estimated $13,033,691
MORGAN STANLEY added 857,574 shares (+236.5%) to their portfolio in Q4 2025, for an estimated $5,428,443
CITADEL ADVISORS LLC added 678,216 shares (+inf%) to their portfolio in Q4 2025, for an estimated $4,293,107
PRIVATE ADVISOR GROUP, LLC removed 412,246 shares (-96.4%) from their portfolio in Q1 2026, for an estimated $2,448,741
JANE STREET GROUP, LLC added 323,667 shares (+1239.7%) to their portfolio in Q4 2025, for an estimated $2,048,812
TWO SIGMA INVESTMENTS, LP added 305,639 shares (+inf%) to their portfolio in Q4 2025, for an estimated $1,934,694
RAYMOND JAMES FINANCIAL INC added 275,684 shares (+66.7%) to their portfolio in Q4 2025, for an estimated $1,745,079

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.

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.