Pulmatrix

PULM

Market cap $6.03M

PULM Hedge Fund Activity: Q1 2026 in Review

15 of the 8,130 institutional investors tracked by Wall St. Rank reported a position in Pulmatrix (PULM) for Q1 2026, worth a combined $425K — down 47% from $795K a quarter earlier.

Buyers outnumbered sellers: 5 funds opened new PULM positions and 4 closed out — a net gain of 1 holder — while 2 added to existing stakes and 4 trimmed.

The largest buyer was Jane Street, opening a new position worth an estimated $34.6K. The largest seller was SBI Securities, cutting an estimated $59.7K.

• 15 institutional investors held Pulmatrix (PULM) as of Q1 2026, unchanged from Q4 2025.
• Funds reported $425K of Pulmatrix stock for Q1 2026, down 47% quarter-over-quarter.
• 5 funds opened new Pulmatrix positions in Q1 2026 and 4 closed out, a net change of +1 holder.
• The largest Pulmatrix buyer in Q1 2026 was Jane Street, an estimated $34.6K added.
• The largest Pulmatrix seller in Q1 2026 was SBI Securities, an estimated $59.7K sold.

Based on aggregated 13F filings for Q1 2026.