DOSSIER · 13F Holders · Q1 2026Cheap mega-capRe-rated

WARNER BROS DISCOVERY INC

1 institutions still hold WARNER BROS DISCOVERY INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 934423105·1 13F holders·last filed Mar 31, 2026

Market cap

—

▲ 9.6%

vs prior quarter

13F value held

$20M

70.0% inst. owned

of float

Holders

-18 QoQ

filers reporting

Activity

+22 / −56

+1,019 added · −843 reduced

this quarter

Concentration

100.00%

SUMMIT SECURITIES GROUP LLC #1

top holder share

AI Holders Summary · Q1 2026

1 institutions reported WARNER BROS DISCOVERY INC in Q1 2026. SUMMIT SECURITIES GROUP LLC leads at 100.0% of the visible book. -18 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter

SUMMIT SECURITIES GROUP LLC

CIK 0001531593

$20M714K2.42%Q1 2026