Justice Samuel Alito also asked for an extension, but has done so before without subsequently disclosing anything inappropriate.

Source: https://boingboing.net/2023/06/08/supreme-court-justice-clarence-thomas-delays-disclosures-amid-reports-of-property-sales-trips.html

Justice Samuel Alito was also granted an extension.

Source: https://kiowacountypress.net/content/tougher-ethics-rules-us-supreme-court-justices-advocated-senate-hearing

The ruling by Justice Samuel Alito, joined by four conservative justices, narrows the scope of the Clean Water Act, limiting federal regulation to wetlands with a continuous surface connection to major bodies of water.

Source: https://njtoday.news/2023/05/28/u-s-supreme-court-rules-against-epa-impacting-waters-of-the-u-s/