American Century Companies’s OSI Systems OSIS Stock Holding History

American Century Companies’s Portfolio OSIS Stock Details OSIS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$48.8M	Buy	223,142 +172,148	+338%	+$42.2M	0.02%	866
2026 Q1	$13.5M	Buy	50,994 +10,664	+26%	+$2.95M	0.01%	1338
2025 Q4	$10.3M	Buy	40,330 +20,604	+104%	+$5.38M	0.01%	1434
2025 Q3	$4.92M	Buy	19,726 +3,741	+23%	+$854K	﹤0.01%	1715
2025 Q2	$3.59M	Sell	15,985 -2,050	-11%	-$438K	﹤0.01%	1801
2025 Q1	$3.5M	Buy	18,035 +6,819	+61%	+$1.3M	﹤0.01%	1752
2024 Q4	$1.88M	Buy	+11,216	New	+$1.78M	﹤0.01%	2016
2024 Q3	–	Sell	-16,807	Closed	-$2.31M	–	2935
2024 Q2	$2.31M	Sell	16,807 -1,353	-7%	-$186K	﹤0.01%	1856
2024 Q1	$2.59M	Buy	18,160 +207	+1%	+$27.2K	﹤0.01%	1771
2023 Q4	$2.32M	Buy	17,953 +3,813	+27%	+$454K	﹤0.01%	1714
2023 Q3	$1.67M	Buy	14,140 +4,508	+47%	+$544K	﹤0.01%	1785
2023 Q2	$1.13M	Buy	9,632 +3,741	+64%	+$429K	﹤0.01%	1879
2023 Q1	$594K	Buy	5,891 +728	+14%	+$67.4K	﹤0.01%	2068
2022 Q4	$411K	Buy	5,163 +743	+17%	+$60.5K	﹤0.01%	2114
2022 Q3	$319K	Buy	4,420 +65	+1%	+$5.69K	﹤0.01%	2090
2022 Q2	$372K	Buy	4,355 +271	+7%	+$22.2K	﹤0.01%	2005
2022 Q1	$348K	Sell	4,084 -6,257	-61%	-$526K	﹤0.01%	2066
2021 Q4	$964K	Buy	10,341 +280	+3%	+$26.3K	﹤0.01%	1666
2021 Q3	$954K	Buy	10,061 +704	+8%	+$68.6K	﹤0.01%	1611
2021 Q2	$951K	Buy	9,357 +1,159	+14%	+$113K	﹤0.01%	1572
2021 Q1	$788K	Sell	8,198 -5,368	-40%	-$509K	﹤0.01%	1548
2020 Q4	$1.26M	Sell	13,566 -4,212	-24%	-$360K	﹤0.01%	1189
2020 Q3	$1.38M	Buy	17,778 +4,053	+30%	+$302K	﹤0.01%	1054
2020 Q2	$1.02M	Sell	13,725 -18,013	-57%	-$1.32M	﹤0.01%	1071
2020 Q1	$2.19M	Buy	+31,738	New	+$2.71M	﹤0.01%	832
2018 Q4	–	Sell	-93,278	Closed	-$7.12M	–	1314
2018 Q3	$7.12M	Sell	93,278 -93,218	-50%	-$7.24M	0.01%	755
2018 Q2	$14.4M	Sell	186,496 -94,117	-34%	-$6.57M	0.01%	571
2018 Q1	$18.3M	Sell	280,613 -10,261	-4%	-$666K	0.02%	527
2017 Q4	$18.7M	Buy	290,874 +72,847	+33%	+$6.12M	0.02%	530
2017 Q3	$19.9M	Sell	218,027 -90,344	-29%	-$7.34M	0.02%	521
2017 Q2	$23.2M	Sell	308,371 -66,207	-18%	-$5.01M	0.02%	492
2017 Q1	$27.3M	Buy	374,578 +51,034	+16%	+$3.79M	0.03%	465
2016 Q4	$24.6M	Sell	323,544 -39,234	-11%	-$2.83M	0.03%	490
2016 Q3	$23.7M	Buy	362,778 +136,682	+60%	+$8.61M	0.03%	500
2016 Q2	$13.1M	Buy	+226,096	New	+$12.5M	0.01%	604
2016 Q1	–	Sell	-2,611	Closed	-$231K	–	1356
2015 Q4	$231K	Sell	2,611 -12,809	-83%	-$1.12M	﹤0.01%	1276
2015 Q3	$1.19M	Sell	15,420 -52,217	-77%	-$3.77M	﹤0.01%	1091
2015 Q2	$4.79M	Buy	67,637 +2,118	+3%	+$153K	0.01%	852
2015 Q1	$4.87M	Buy	65,519 +26,290	+67%	+$1.88M	0.01%	847
2014 Q4	$2.78M	Buy	39,229 +33,527	+588%	+$2.29M	﹤0.01%	1009
2014 Q3	$362K	Buy	+5,702	New	+$379K	﹤0.01%	1330
2013 Q4	–	Sell	-13,187	Closed	-$982K	–	1479
2013 Q3	$982K	Buy	13,187 +830	+7%	+$58.9K	﹤0.01%	1233
2013 Q2	$796K	Buy	+12,357	New	+$720K	﹤0.01%	1241

Other funds holding OSIS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Jupiter Topco New York $245B AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return

CCM

Channing Capital Management Chicago, Illinois $4.34B AUM 37.08% 1-Year Est. Return

HRCM

Hood River Capital Management Palm Beach Gardens, Florida $13.8B AUM 163.97% 1-Year Est. Return

American Century Companies's OSIS Position: Q2 2026 in Review

American Century Companies increased its OSI Systems (OSIS) stake by 338% in Q2 2026, buying an estimated $42.2M and bringing the position to 223,142 shares worth $48.8M. The position accounts for 0.02% of the portfolio, ranked #866.

American Century Companies first reported a position in OSIS in Q2 2013 and has held it in 43 quarters since. 336 funds tracked by Wall St. Rank hold OSIS as of Q2 2026.

American Century Companies held 223,142 shares of OSI Systems worth $48.8M as of Q2 2026.
American Century Companies bought 172,148 OSI Systems shares in Q2 2026, an estimated $42.2M.
OSI Systems made up 0.02% of American Century Companies's portfolio in Q2 2026, its #866 holding.
American Century Companies first reported a position in OSI Systems in Q2 2013 and has held it in 43 quarters since.
336 funds tracked by Wall St. Rank held OSI Systems as of Q2 2026.

Based on American Century Companies's 13F filing for Q2 2026, filed 12 Aug 2026.