DOSSIER · 13F Holders · Q2 2025

DAY ONE BIOPHARMACEUTICALS I

Name: DAY ONE BIOPHARMACEUTICALS I Institutional Ownership (13F)
Creator: 13F Insight

1 institutions still hold DAY ONE BIOPHARMACEUTICALS I as of Q2 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 23954D959·1 13F holders·last filed Jun 30, 2025

Market cap

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13F value held

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visible holders

Holders

filers reporting

Concentration

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CONCOURSE FINANCIAL GROUP SECURITIES, INC. #1

top holder share

AI Holders Summary · Q2 2025

1 institutions reported DAY ONE BIOPHARMACEUTICALS I in Q2 2025. Top-holder concentration data is loading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter

CONCOURSE FINANCIAL GROUP SECURITIES, INC.

CIK 0000752798

$00—Q2 2025