American Century Companies’s Onto Innovation ONTO Stock Holding History

American Century Companies’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 Q1	$32.9M	Sell	160,393 -87,701	-35%	-$18M	0.02%	949
2025 Q4	$39.2M	Buy	248,094 +79,475	+47%	+$11.3M	0.02%	836
2025 Q3	$21.8M	Sell	168,619 -3,249	-2%	-$348K	0.01%	1106
2025 Q2	$17.3M	Sell	171,868 -49,746	-22%	-$5.31M	0.01%	1154
2025 Q1	$26.9M	Sell	221,614 -42,999	-16%	-$7.24M	0.02%	893
2024 Q4	$44.1M	Sell	264,613 -53,335	-17%	-$9.75M	0.03%	685
2024 Q3	$66M	Sell	317,948 -96,406	-23%	-$19.5M	0.04%	488
2024 Q2	$91M	Sell	414,354 -87,173	-17%	-$18M	0.06%	344
2024 Q1	$90.8M	Buy	501,527 +81,445	+19%	+$13.8M	0.06%	359
2023 Q4	$64.2M	Sell	420,082 -44,300	-10%	-$5.96M	0.04%	424
2023 Q3	$59.2M	Buy	464,382 +42,788	+10%	+$5.09M	0.05%	403
2023 Q2	$49.1M	Buy	421,594 +52,910	+14%	+$5.05M	0.04%	439
2023 Q1	$32.4M	Buy	368,684 +12,269	+3%	+$995K	0.03%	566
2022 Q4	$24.3M	Sell	356,415 -76,367	-18%	-$5.49M	0.02%	657
2022 Q3	$27.7M	Buy	432,782 +11,289	+3%	+$829K	0.02%	555
2022 Q2	$29.4M	Buy	421,493 +6,491	+2%	+$480K	0.02%	563
2022 Q1	$36.1M	Sell	415,002 -400,984	-49%	-$35.7M	0.02%	536
2021 Q4	$82.6M	Buy	815,986 +350,512	+75%	+$30.2M	0.05%	371
2021 Q3	$33.6M	Buy	465,474 +5,023	+1%	+$362K	0.02%	548
2021 Q2	$33.6M	Buy	460,451 +99,412	+28%	+$6.83M	0.02%	554
2021 Q1	$23.7M	Sell	361,039 -1,400	-0.4%	-$83.4K	0.02%	612
2020 Q4	$17.2M	Buy	+362,439	New	+$14.5M	0.01%	651
2020 Q2	–	Sell	-42,306	Closed	-$1.25M	–	1798
2020 Q1	$1.25M	Buy	42,306 +360	+0.9%	+$12.3K	﹤0.01%	944
2019 Q4	$1.53M	Sell	41,946 -144,784	-78%	-$4.92M	﹤0.01%	1004
2019 Q3	$6.09M	Sell	186,730 -938	-0.5%	-$29.2K	0.01%	748
2019 Q2	$6.51M	Sell	187,668 -17,488	-9%	-$559K	0.01%	758
2019 Q1	$6.33M	Sell	205,156 -8,983	-4%	-$264K	0.01%	745
2018 Q4	$5.85M	Buy	214,139 +28,186	+15%	+$869K	0.01%	764
2018 Q3	$6.98M	Buy	185,953 +2,629	+1%	+$103K	0.01%	764
2018 Q2	$6.49M	Buy	183,324 +17,139	+10%	+$587K	0.01%	785
2018 Q1	$4.47M	Buy	166,185 +871	+0.5%	+$23.3K	﹤0.01%	858
2017 Q4	$4.12M	Sell	165,314 -3,963	-2%	-$106K	﹤0.01%	882
2017 Q3	$4.88M	Buy	169,277 +4,861	+3%	+$128K	﹤0.01%	857
2017 Q2	$4.16M	Buy	164,416 +5,832	+4%	+$165K	﹤0.01%	897
2017 Q1	$4.83M	Buy	158,584 +63,654	+67%	+$1.72M	0.01%	881
2016 Q4	$2.38M	Buy	94,930 +50,889	+116%	+$1.16M	﹤0.01%	1009
2016 Q3	$984K	Buy	+44,041	New	+$923K	﹤0.01%	1166
2015 Q3	–	Sell	-519,475	Closed	-$8.37M	–	1401
2015 Q2	$8.37M	Buy	519,475 +6,713	+1%	+$105K	0.01%	708
2015 Q1	$8.63M	Sell	512,762 -165,994	-24%	-$2.84M	0.01%	708
2014 Q4	$11.4M	Buy	678,756 +241,280	+55%	+$3.58M	0.01%	665
2014 Q3	$6.61M	Sell	437,476 -172,469	-28%	-$2.89M	0.01%	788
2014 Q2	$11.1M	Buy	609,945 +21,588	+4%	+$365K	0.01%	682
2014 Q1	$10.6M	Sell	588,357 -143,231	-20%	-$2.6M	0.01%	690
2013 Q4	$13.9M	Sell	731,588 -386,172	-35%	-$6.77M	0.02%	612
2013 Q3	$18M	Sell	1,117,760 -84,325	-7%	-$1.27M	0.02%	527
2013 Q2	$17.6M	Buy	+1,202,085	New	+$17.4M	0.02%	523

Other funds holding ONTO

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

PCMI

Paradigm Capital Management Inc Albany, New York $2.61B AUM 78.58% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

American Century Companies's ONTO Position: Q1 2026 in Review

American Century Companies reduced its Onto Innovation (ONTO) stake by 35% in Q1 2026, selling an estimated $18M and leaving 160,393 shares worth $32.9M. The position accounts for 0.02% of the portfolio, ranked #949.

American Century Companies first reported a position in ONTO in Q2 2013 and has held it in 46 quarters since. The position peaked at $91M in Q2 2024. 574 funds tracked by Wall St. Rank hold ONTO as of Q1 2026.

American Century Companies held 160,393 shares of Onto Innovation worth $32.9M as of Q1 2026.
American Century Companies sold 87,701 Onto Innovation shares in Q1 2026, an estimated $18M.
Onto Innovation made up 0.02% of American Century Companies's portfolio in Q1 2026, its #949 holding.
American Century Companies first reported a position in Onto Innovation in Q2 2013 and has held it in 46 quarters since.
American Century Companies's Onto Innovation position peaked at $91M in Q2 2024.
574 funds tracked by Wall St. Rank held Onto Innovation as of Q1 2026.

Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.