Siren ETF Trust Siren NexGen Economy ETF

BLCN

BLCN Hedge Fund Activity: Q1 2026 in Review

33 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Siren ETF Trust Siren NexGen Economy ETF (BLCN) for Q1 2026, worth a combined $3.11M — down 12% from $3.52M a quarter earlier.

Sellers outnumbered buyers: 7 funds closed out of BLCN and 3 opened new positions — a net loss of 4 holders — while 3 trimmed existing stakes and 8 added.

The largest buyer was Mercer Global Advisors, opening a new position worth an estimated $467K. The largest seller was Jane Street, exiting entirely with an estimated $555K sold.

• 33 institutional investors held Siren ETF Trust Siren NexGen Economy ETF (BLCN) as of Q1 2026, down from 37 in Q4 2025.
• Funds reported $3.11M of Siren ETF Trust Siren NexGen Economy ETF stock for Q1 2026, down 12% quarter-over-quarter.
• 3 funds opened new Siren ETF Trust Siren NexGen Economy ETF positions in Q1 2026 and 7 closed out, a net change of -4 holders.
• The largest Siren ETF Trust Siren NexGen Economy ETF buyer in Q1 2026 was Mercer Global Advisors, an estimated $467K added.
• The largest Siren ETF Trust Siren NexGen Economy ETF seller in Q1 2026 was Jane Street, an estimated $555K sold.

Based on aggregated 13F filings for Q1 2026.