HUB Cyber Security (HUBC) soars 376.9% as ownership filings spark a speculative micro-float squeeze

HUB Cyber Security Ltd. (HUBC) is up 376.9% today. Here is some analysis on what might have caused this price movement.

Analysis: The most visible catalyst appears to be a burst of large-stake ownership disclosures, highlighted by an amended Schedule 13G/A indicating a double-digit beneficial ownership position. In a thinly traded, very low-priced stock, that kind of filing can quickly trigger momentum buying and short-squeeze dynamics, amplifying the move.

Details:

A Schedule 13G/A was filed on May 28, 2026, showing an updated large beneficial ownership position for the company’s shares.

Earlier in the week, a Schedule 13G filing showed Andre Wang as a >5% holder, and subsequent updates drew fresh attention to stake-building activity.

Recent company disclosures have also included Nasdaq compliance-related updates tied to delayed financial reporting, which can contribute to heightened volatility and abrupt sentiment shifts.

Reported short-interest metrics and an extremely small effective float can exacerbate price spikes when volume surges.

Sources:

SEC, HUB Security (Investor Relations), MarketBeat

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

$HUBC Insider Trading Activity

$HUBC insiders have traded $HUBC stock on the open market 2 times in the past 6 months. Of those trades, 1 have been purchases and 1 have been sales.

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

FINANCIAL LP HRT has made 1 purchase buying 415,708 shares for an estimated $5,819 and 1 sale selling 779,504 shares for an estimated $171,490.

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.

$HUBC Hedge Fund Activity

We have seen 9 institutional investors add shares of $HUBC stock to their portfolio, and 10 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

RIVERNORTH CAPITAL MANAGEMENT, LLC added 199,850 shares (+inf%) to their portfolio in Q1 2026, for an estimated $992,255
TWO SIGMA SECURITIES, LLC removed 4,166 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $413
SBI SECURITIES CO., LTD. removed 2,089 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $207
HRT FINANCIAL LP removed 2,043 shares (-41.1%) from their portfolio in Q1 2026, for an estimated $202
SASSICAIA CAPITAL ADVISERS LLC removed 1,533 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $152
JANE STREET GROUP, LLC removed 1,243 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $123
RENAISSANCE TECHNOLOGIES LLC added 1,101 shares (+inf%) to their portfolio in Q1 2026, for an estimated $109

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.

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.