SEC 13F Intelligence

Managers / Q1 2026

Granahan Investment Management, LLC

CIK 0001026710 · 404 WYMAN STREET, SUITE 460, WALTHAM, MA, 02451 · 7818904412

Reported Value
$2.1B
Q1 2026
Positions
149
Filings on Record
30
2019–present window
Filed
May 15, 2026
original filing

Summary

Granahan Investment Management, Llc reported $2.1B in U.S.-listed holdings across 149 positions for Q1 2026.

Its largest position, CRS, represents 4.6% of the portfolio.

Compared with Q4 2025, the fund opened 17 new positions and exited 25.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $1.4BQ4 ’18Q1 ’19: $1.9BQ2 ’19: $2.0BQ3 ’19: $1.8BQ4 ’19: $2.2BQ4 ’19Q1 ’20: $1.9BQ2 ’20: $2.8BQ3 ’20: $2.9BQ4 ’20: $4.5BQ4 ’20Q1 ’21: $4.7BQ2 ’21: $5.4BQ3 ’21: $5.3BQ4 ’21: $4.9BQ4 ’21Q1 ’22: $4.0BQ2 ’22: $2.9BQ3 ’22: $3.1BQ4 ’22: $3.27TQ4 ’22Q1 ’23: $3.3BQ2 ’23: $3.2BQ3 ’23: $2.8BQ4 ’23: $3.0BQ4 ’23Q1 ’24: $2.8BQ2 ’24: $2.5BQ3 ’24: $2.5BQ4 ’24: $2.4BQ4 ’24Q1 ’25: $2.0BQ2 ’25: $2.5BQ3 ’25: $2.4BQ4 ’25: $2.3BQ4 ’25Q1 ’26: $2.1Bfilingsflow.com

Portfolio Composition

By security type
Common Stock: 83.1%Other: 15.8%ADR: 1.1%
  • Common Stock · 83.1% · $1.7B
  • Other · 15.8% · $327M
  • ADR · 1.1% · $22M

Quarter-over-Quarter Changes full breakdown →

Holdings — Q1 2026

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#IssuerClass% PortfolioValue ↓Shares

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$2.1B149May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$2.3B157Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$2.4B146Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$2.5B153Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$2.0B159May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$2.4B180Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$2.5B187Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$2.5B180Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$2.8B181May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$3.0B180Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$2.8B183Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$3.2B175Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$3.3B165May 15, 202313F-HRchanges · EDGAR ↗
Q4 2022$3.27T170Feb 14, 202313F-HRchanges · EDGAR ↗
Q3 2022$3.1B176Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$2.9B172Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$4.0B178May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$4.9B186Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$5.3B193Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$5.4B193Aug 16, 202113F-HRchanges · EDGAR ↗
Q1 2021$4.7B191May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$4.5B192Feb 12, 202113F-HRchanges · EDGAR ↗
Q3 2020$2.9B180Nov 12, 202013F-HRchanges · EDGAR ↗
Q2 2020$2.8B191Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$1.9B184May 12, 202013F-HRchanges · EDGAR ↗
Q4 2019$2.2B182Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$1.8B181Nov 15, 201913F-HRchanges · EDGAR ↗
Q2 2019$2.0B184Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$1.9B189May 14, 201913F-HRchanges · EDGAR ↗
Q4 2018$1.4B193Feb 13, 201913F-HRchanges · 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 ↗.