Similarweb

SMWB

Market cap $614M

SMWB Hedge Fund Activity: Q1 2026 in Review

80 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Similarweb (SMWB) for Q1 2026, worth a combined $116M — down 69% from $372M a quarter earlier.

Sellers outnumbered buyers: 35 funds closed out of SMWB and 19 opened new positions — a net loss of 16 holders — while 18 trimmed existing stakes and 32 added.

The largest buyer was S Squared Technology, adding an estimated $3.44M. The largest seller was Migdal Insurance & Financial Holdings, exiting entirely with an estimated $23.3M sold.

• 80 institutional investors held Similarweb (SMWB) as of Q1 2026, down from 97 in Q4 2025.
• Funds reported $116M of Similarweb stock for Q1 2026, down 69% quarter-over-quarter.
• 19 funds opened new Similarweb positions in Q1 2026 and 35 closed out, a net change of -16 holders.
• The largest Similarweb buyer in Q1 2026 was S Squared Technology, an estimated $3.44M added.
• The largest Similarweb seller in Q1 2026 was Migdal Insurance & Financial Holdings, an estimated $23.3M sold.

Based on aggregated 13F filings for Q1 2026.