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Zenas BioPharma, Inc. planned insider sales

In the last twelve months insiders at Zenas BioPharma, Inc. filed 1 Form 144 notice of planned sales, 1.0 million shares worth $31.9 million at the time of filing, from 1 seller. The latest, filed 19 August 2026: Zebra Aggregator, LP (affiliate), 1.0 million shares worth $31.9 million, planned for around 19 August 2026 through J.P. Morgan Securities LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
19 August 2026Zebra Aggregator, LPAffiliate1,000,000$31.9 million19 August 2026None on Form 4 yetJ.P. Morgan Securities LLCSeries BForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?