Illumina

ILMN

Market cap $28.2B

ILMN Hedge Fund Activity: Q1 2026 in Review

844 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Illumina (ILMN) for Q1 2026, worth a combined $19.3B — down 7.2% from $20.8B a quarter earlier.

Buyers outnumbered sellers: 96 funds opened new ILMN positions and 94 closed out — a net gain of 2 holders — while 290 added to existing stakes and 318 trimmed.

The largest buyer was WCM Investment Management, adding an estimated $243M. The largest seller was Capital World Investors, cutting an estimated $598M.

• 844 institutional investors held Illumina (ILMN) as of Q1 2026, down from 858 in Q4 2025.
• Funds reported $19.3B of Illumina stock for Q1 2026, down 7.2% quarter-over-quarter.
• 96 funds opened new Illumina positions in Q1 2026 and 94 closed out, a net change of +2 holders.
• The largest Illumina buyer in Q1 2026 was WCM Investment Management, an estimated $243M added.
• The largest Illumina seller in Q1 2026 was Capital World Investors, an estimated $598M sold.

Based on aggregated 13F filings for Q1 2026.