OSI SYSTEMS INC - Common Stock (OSIS) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
OSIS on Nasdaq
Shares outstanding
16,989,471
Price per share
$289.68
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
18,804,771
Total reported value
$4,798,202,029
% of total 13F portfolios
0%
Share change
+38,843
Value change
+$12,589,142
Number of holders
351
Price from insider filings
$289.68
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of OSI SYSTEMS INC - Common Stock (OSIS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 14% $537,376,724 2,389,828 BlackRock, Inc. 30 Jun 2025
FMR LLC 10% +39% $434,630,776 +$119,520,243 1,703,860 +38% FMR LLC 31 Dec 2025
JANUS HENDERSON GROUP PLC 5.9% -6.7% $249,312,529 -$13,068,899 1,000,291 -5% JANUS HENDERSON GROUP PLC 30 Sep 2025
Mawer Investment Management Ltd. 4.7% -7.2% $205,384,599 -$13,489,768 803,602 -6.2% Mawer Investment Management Ltd. 31 Dec 2025

As of 31 Dec 2025, 351 institutional investors reported holding 18,804,771 shares of OSI SYSTEMS INC - Common Stock (OSIS). This represents 111% of the company’s total 16,989,471 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of OSI SYSTEMS INC - Common Stock (OSIS) together control 86% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 15% 2,561,902 +2.3% 0.01% $653,438,725
VANGUARD GROUP INC 12% 2,106,595 -0.05% 0.01% $537,308,121
FMR LLC 9.8% 1,657,430 +52% 0.02% $422,744,107
Mawer Investment Management Ltd. 4.7% 803,602 -6.2% 1.1% $204,966,726
JANUS HENDERSON GROUP PLC 4.4% 752,567 -25% 0.09% $191,948,686
Capital International Investors 4% 674,343 0% 0.03% $171,997,926
STATE STREET CORP 3.9% 658,174 -1.2% 0.01% $167,873,860
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 2.9% 498,252 -9.5% 0.03% $127,084,154
Invesco Ltd. 2.5% 425,197 +21% 0.02% $108,450,747
GEODE CAPITAL MANAGEMENT, LLC 2.4% 410,963 +4.2% 0.01% $104,836,009
DIMENSIONAL FUND ADVISORS LP 2.4% 406,892 -3% 0.02% $103,790,223
Hood River Capital Management LLC 2.2% 379,374 +2.2% 1.1% $96,763,132
UBS Group AG 1.9% 316,236 -0.03% 0.02% $80,659,154
NEUBERGER BERMAN GROUP LLC 1.8% 300,792 -1.1% 0.06% $76,834,304
BANK OF AMERICA CORP /DE/ 1.7% 286,253 +3.9% 0.01% $73,011,690
PRIMECAP MANAGEMENT CO/CA/ 1.6% 267,710 -13% 0.05% $68,282,113
Clark Capital Management Group, Inc. 1.6% 266,114 +2.6% 0.42% $67,875,037
PRICE T ROWE ASSOCIATES INC /MD/ 1.5% 255,062 +4.1% 0.01% $65,057,000
Driehaus Capital Management LLC 1.4% 235,768 +60% 0.41% $60,134,986
SYSTEMATIC FINANCIAL MANAGEMENT LP 1.4% 233,252 -9.1% 1.4% $59,493,654
VAN ECK ASSOCIATES CORP 1.3% 227,095 +11% 0.05% $57,923,000
MORGAN STANLEY 1.3% 222,904 -15% 0% $56,854,001
LOOMIS SAYLES & CO L P 1.2% 207,446 -4.5% 0.06% $52,911,177
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.2% 202,033 -3.8% 0.01% $51,530,537
NEUMEIER POMA INVESTMENT COUNSEL LLC 1.2% 195,795 +0.63% 4.1% $49,939,473

Institutional Holders of OSI SYSTEMS INC - Common Stock (OSIS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 18,804,771 $4,798,202,029 +$12,589,142 $255.06 351
2025 Q3 18,695,472 $4,658,561,250 +$10,949,794 $249.24 345
2025 Q2 18,689,354 $4,200,189,299 -$159,319,080 $224.86 337
2025 Q1 19,470,051 $3,781,680,121 +$272,650,652 $194.34 306
2024 Q4 18,050,418 $3,021,926,083 +$271,642,509 $167.43 300
2024 Q3 16,442,167 $2,494,751,950 +$153,277,128 $151.83 271
2024 Q2 15,388,625 $2,116,646,888 +$78,778,036 $137.52 264
2024 Q1 15,161,521 $2,164,902,587 -$3,031,012 $142.82 247
2023 Q4 15,196,031 $1,961,204,420 +$30,223,863 $129.05 225
2023 Q3 14,995,454 $1,769,645,354 -$8,152,605 $118.04 234
2023 Q2 15,053,317 $1,773,537,607 +$5,185,476 $117.83 207
2023 Q1 15,018,948 $1,537,929,075 -$22,653,459 $102.36 179
2022 Q4 15,307,854 $1,218,259,274 +$12,488,077 $79.52 186
2022 Q3 15,180,060 $1,094,118,619 -$32,043,942 $72.06 178
2022 Q2 15,555,990 $1,329,118,252 -$28,934,397 $85.44 179
2022 Q1 15,992,182 $1,361,219,330 -$55,039,518 $85.12 180
2021 Q4 16,606,910 $1,547,299,064 -$45,448,996 $93.20 186
2021 Q3 16,993,040 $1,610,685,639 -$28,683,627 $94.80 185
2021 Q2 17,297,443 $1,757,698,619 +$26,327,154 $101.64 184
2021 Q1 17,057,537 $1,639,241,231 +$5,209,680 $96.10 191
2020 Q4 16,994,249 $1,584,140,398 +$14,674,825 $93.22 183
2020 Q3 16,926,937 $1,313,266,781 -$17,757,416 $77.61 179
2020 Q2 17,148,117 $1,279,335,922 -$28,715,492 $74.64 182
2020 Q1 17,541,814 $1,208,909,580 -$64,400,041 $68.92 184
2019 Q4 18,084,164 $1,820,715,476 -$4,150,225 $100.74 217
2019 Q3 18,091,030 $1,836,421,158 -$27,443,978 $101.56 234
2019 Q2 18,281,910 $2,057,541,074 +$99,688,931 $112.63 217
2019 Q1 17,791,678 $1,558,272,288 -$19,437,702 $87.60 200
2018 Q4 17,983,739 $1,318,096,761 -$13,345,704 $73.30 166
2018 Q3 18,165,843 $1,385,878,403 +$4,196,913 $76.31 174
2018 Q2 18,114,534 $1,400,527,850 -$42,014,486 $77.33 169
2018 Q1 18,713,123 $1,221,481,349 -$46,309,281 $65.27 172
2017 Q4 19,474,177 $1,253,850,641 -$42,176,979 $64.38 197
2017 Q3 19,405,846 $1,772,211,523 +$39,355,973 $91.37 191
2017 Q2 19,042,842 $1,430,986,568 +$84,542,283 $75.15 192
2017 Q1 19,380,274 $1,414,453,344 +$153,782,836 $72.99 181
2016 Q4 19,319,559 $1,470,197,940 +$53,560,786 $76.12 179
2016 Q3 18,638,256 $1,216,923,096 +$27,047,587 $65.38 174
2016 Q2 17,931,369 $1,042,275,069 -$55,275,583 $58.13 166
2016 Q1 18,776,050 $1,229,820,529 -$24,851,526 $65.49 164
2015 Q4 18,565,015 $1,645,725,206 +$927,044 $88.66 202
2015 Q3 18,556,453 $1,428,009,029 +$1,325,963 $76.96 176
2015 Q2 18,477,971 $1,307,984,061 +$39,463,772 $70.79 170
2015 Q1 17,877,412 $1,327,342,822 +$3,163,445 $74.26 186
2014 Q4 17,887,305 $1,266,067,641 -$17,368,519 $70.77 178
2014 Q3 18,101,870 $1,149,102,842 +$8,182,354 $63.48 169
2014 Q2 17,905,293 $1,195,076,453 -$6,097,674 $66.75 158
2014 Q1 18,165,869 $1,087,191,743 +$62,573,968 $59.86 160