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David J Portman: large open-market buy of LONA

$9.9B open-market purchase by David J Portman, 10% Owner at LeonaBio,Inc., filed October 29, 2026. Learn more

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Big BuyLONA
$4.96+1.43% today

David J Portman · 10% Owner at LeonaBio,Inc.

$9.9B

David J Portman bought $9.9B of LONA (LeonaBio,Inc.).

Filed October 29, 2026

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David J Portman bought $9.9B of LONA. Large open-market insider purchase reported on SEC Form 4.

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Method Public Form 4 filings, normalized for cleaner scanning. Filtered rows stay available in All Form 4 Filings and ticker history. Which view should I use? →