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Granahan Investment Management’s Onto Innovation ONTO Stock Holding History

Granahan Investment Management’s Portfolio ONTO Stock Details ONTO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$53.6M Sell
141,568
-57,126
-29% -$16.2M 1.91% 13
2026
Q1 		$40.7M Buy
198,694
+2,052
+1% +$420K 1.97% 11
2025
Q4 		$31M Buy
196,642
+122,520
+165% +$17.4M 1.33% 24
2025
Q3 		$9.58M Buy
74,122
+40,364
+120% +$4.32M 0.39% 63
2025
Q2 		$3.41M Sell
33,758
-23,343
-41% -$2.49M 0.14% 119
2025
Q1 		$6.93M Buy
57,101
+30,397
+114% +$5.12M 0.35% 75
2024
Q4 		$4.45M Buy
26,704
+2,261
+9% +$413K 0.19% 110
2024
Q3 		$5.07M Sell
24,443
-2,459
-9% -$496K 0.2% 128
2024
Q2 		$5.91M Sell
26,902
-18,284
-40% -$3.78M 0.24% 115
2024
Q1 		$8.18M Sell
45,186
-13,016
-22% -$2.2M 0.29% 98
2023
Q4 		$8.9M Sell
58,202
-16,166
-22% -$2.17M 0.29% 94
2023
Q3 		$9.48M Sell
74,368
-18,129
-20% -$2.15M 0.34% 88
2023
Q2 		$10.8M Sell
92,497
-14,291
-13% -$1.36M 0.33% 83
2023
Q1 		$9.38M Sell
106,788
-3,300
-3% -$268K 0.29% 94
2022
Q4 		$7.5M Buy
110,088
+17,381
+19% +$1.25M 0.23% 109
2022
Q3 		$5.94M Buy
92,707
+8,161
+10% +$600K 0.19% 121
2022
Q2 		$5.9M Sell
84,546
-1,300
-2% -$96.2K 0.2% 109
2022
Q1 		$7.46M Buy
85,846
+2,150
+3% +$191K 0.19% 112
2021
Q4 		$8.47M Sell
83,696
-5,274
-6% -$455K 0.17% 122
2021
Q3 		$6.43M Sell
88,970
-380
-0.4% -$27.4K 0.12% 134
2021
Q2 		$6.53M Buy
89,350
+29,442
+49% +$2.02M 0.12% 144
2021
Q1 		$3.94M Buy
59,908
+1,755
+3% +$105K 0.08% 153
2020
Q4 		$2.77M Sell
58,153
-205,828
-78% -$8.25M 0.06% 164
2020
Q3 		$7.86M Sell
263,981
-3,120
-1% -$103K 0.27% 86
2020
Q2 		$9.09M Buy
267,101
+2,781
+1% +$90.4K 0.33% 84
2020
Q1 		$7.84M Buy
264,320
+1,701
+0.6% +$58.2K 0.42% 61
2019
Q4 		$9.6M Buy
+262,619
New +$8.92M 0.44% 67

Other funds holding ONTO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
PCMI
Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Granahan Investment Management's ONTO Position: Q2 2026 in Review

Granahan Investment Management reduced its Onto Innovation (ONTO) stake by 29% in Q2 2026, selling an estimated $16.2M and leaving 141,568 shares worth $53.6M. The position accounts for 1.91% of the portfolio, ranked #13.

Granahan Investment Management first reported a position in ONTO in Q4 2019 and has held it in 27 quarters since. 689 funds tracked by Wall St. Rank hold ONTO as of Q2 2026.

  • Granahan Investment Management held 141,568 shares of Onto Innovation worth $53.6M as of Q2 2026.
  • Granahan Investment Management sold 57,126 Onto Innovation shares in Q2 2026, an estimated $16.2M.
  • Onto Innovation made up 1.91% of Granahan Investment Management's portfolio in Q2 2026, its #13 holding.
  • Granahan Investment Management first reported a position in Onto Innovation in Q4 2019 and has held it in 27 quarters since.
  • 689 funds tracked by Wall St. Rank held Onto Innovation as of Q2 2026.

Based on Granahan Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.