Managers / Q3 2024 · view latest →
Granahan Investment Management, LLC
CIK 0001026710 · 404 WYMAN STREET, SUITE 460, WALTHAM, MA, 02451 · 7818904412
Summary
Granahan Investment Management, LLC reported $2.5B in U.S.-listed holdings across 187 positions for Q3 2024.
Its largest position, EVH, represents 3.9% of the portfolio.
Compared with Q2 2024, the fund opened 24 new positions and exited 17.
Portfolio Metrics
Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.
Reported Value by Quarter
Portfolio Composition
- Common Stock · 85.8% · $2.2B
- Other · 13.7% · $348M
- ADR · 0.5% · $12M
Quarter-over-Quarter Changes full breakdown →
vs Q2 2024 (amended baseline)
| Issuer | Move | Share Δ | Shares now | Value Δ | Value now |
|---|---|---|---|---|---|
| EXKEXACT SCIENCES CORP | NEW | +410.2K | 410.2K | +$28M | $28M |
| STEPSTEPSTONE GROUP INC | NEW | +234.3K | 234.3K | +$13M | $13M |
| RGENREPLIGEN CORP | NEW | +88.3K | 88.3K | +$13M | $13M |
| SPORTRADAR GROUP AG | NEW | +1.08M | 1.08M | +$13M | $13M |
| QXOQXO INC | NEW | +658.3K | 658.3K | +$10M | $10M |
| TRNSTRANSCAT INC | NEW | +81.4K | 81.4K | +$10M | $10M |
| RVMDREVOLUTION MEDICINES INC | NEW | +149.4K | 149.4K | +$7M | $7M |
| LEGNLEGEND BIOTECH CORP | NEW | +119.6K | 119.6K | +$6M | $6M |
Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.
Holdings — Q3 2024
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $2.1B | 149 | May 15, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $2.3B | 157 | Feb 17, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $2.4B | 146 | Nov 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $2.5B | 153 | Aug 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $2.0B | 159 | May 15, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $2.4B | 180 | Feb 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $2.5B | 187 | Nov 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $2.5B | 180 | Aug 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $2.8B | 181 | May 15, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $3.0B | 180 | Feb 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $2.8B | 183 | Nov 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | $3.2B | 175 | Aug 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $3.3B | 165 | May 15, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | $3.3B | 170 | Feb 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $3.1B | 176 | Nov 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $2.9B | 172 | Aug 15, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $4.0B | 178 | May 16, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $4.9B | 186 | Feb 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q3 2021 | $5.3B | 193 | Nov 15, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $5.4B | 193 | Aug 16, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $4.7B | 191 | May 17, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $4.5B | 192 | Feb 12, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q3 2020 | $2.9B | 180 | Nov 12, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q2 2020 | $2.8B | 191 | Aug 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q1 2020 | $1.9B | 184 | May 12, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q4 2019 | $2.2B | 182 | Feb 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q3 2019 | $1.8B | 181 | Nov 15, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q2 2019 | $2.0B | 184 | Aug 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q1 2019 | $1.9B | 189 | May 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q4 2018 | $1.4B | 193 | Feb 13, 2019 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.