DOSSIER · 13F-HR · Q1 2026
Granahan Investment Management, LLC
Granahan Investment's hedge fund based in Boston, MA — $2.1B in tracked AUM across 149 positions as of Q1 2026.
GI
Granahan Investment·Boston, MA·Hedge Fund
CIK 0001026710 · last filed Mar 31, 2026
AI Analysis · Q1 2026 · Q1 2026
SEC 13F Filing Analysis: Granahan Investment Management, LLC Report Period: Q3 2025 (September 30, 2025)
1. Portfolio Overview
Granahan Investment Management reported a significant contraction in portfolio value during the third quarter of 2025, with total assets under management (AUM) decreasing by 35.7%, from $2.46 billion to $1.58 billion. This reduction does not necessarily indicate net negative performance but likely reflects a combination of market depreciation in held positio...
Quarter at a glance — Q1 2026
Position-change comparison pending.
No quarter-over-quarter changes available.
Top 10 holdings
By portfolio weight as of Q1 2026.
Filing history
Filing history loading…