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Granahan Investment Management, LLC

CIK
1026710
City
WALTHAM
State / Country
MA

Top Portfolio Positions

149 positions · $2,067,341,622 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

25 quarters · across all stocks

Holdings in ONTO

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Shares Held

Position Value (USD)

25 quarters on record
Report Date Value (USD) Shares
2026-03-31 $40,746,178 198,694
2025-12-31 $31,041,906 196,642
2025-09-30 $9,578,044 74,122
2025-06-30 $3,407,194 33,758
2025-03-31 $6,928,635 57,101
2024-12-31 $4,450,755 26,704
2024-09-30 $5,073,389 24,443
2024-06-30 $5,906,603 26,902
2024-03-31 $8,182,280 45,186
2023-12-31 $8,899,085 58,202
2023-09-30 $9,483,407 74,368
2023-06-30 $10,773,125 92,497
2023-03-31 $9,384,529 106,788
2022-12-31 $7,495,891 110,088
2022-09-30 $5,937,883 92,707
2022-06-30 $5,896,238 84,546
2022-03-31 $7,459,158 85,846
2021-12-31 $8,472,546 83,696
2021-09-30 $6,428,082 88,970
2021-06-30 $6,526,124 89,350
2021-03-31 $3,936,554 59,908
2020-12-31 $2,765,175 58,153
2020-09-30 $7,861,354 263,981
2020-06-30 $9,092,118 267,101
2020-03-31 $7,842,374 264,320