OSI Systems Ownership | Who Owns OSI Systems?
OSI Systems Ownership Summary
OSI Systems is owned by 110.34% institutional investors, 4.48% insiders. Blackrock is the largest institutional shareholder, holding 15.31% of OSIS shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.72% of its assets in OSI Systems shares.
OSIS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | OSI Systems | 110.34% | 4.48% | -14.83% |
| Sector | Technology Stocks | 36.93% | 14.89% | 48.18% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 2.61M | 15.31% | $358.80M |
| Blackrock funding, inc. /de | 2.53M | 15.11% | $671.64M |
| Vanguard group | 2.11M | 12.58% | $537.31M |
| Fmr | 1.97M | 11.75% | $522.28M |
| Janus henderson group | 772.31K | 4.61% | $205.06M |
| Mawer investment management | 662.63K | 3.96% | $175.94M |
| State street | 662.14K | 3.96% | $175.81M |
| Capital investors | 619.48K | 3.70% | $164.48M |
| Geode capital management | 440.72K | 2.63% | $117.03M |
| Ubs asset management americas | 430.56K | 2.57% | $114.32M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Prospect capital advisors | 49.48K | 7.31% | $13.14M |
| Neumeier poma investment counsel | 191.43K | 4.19% | $50.83M |
| Millrace asset group | 16.34K | 2.18% | $2.25M |
| Channing capital management | 266.88K | 1.81% | $70.86M |
| Bridge city capital | 22.58K | 1.66% | $6.00M |
| Cascade investment advisors | 9.32K | 1.46% | $2.47M |
| Intrinsic edge capital management | 31.16K | 1.42% | $7.95M |
| Systematic financial management lp | 219.24K | 1.33% | $58.21M |
| Thematics asset management | 106.41K | 1.20% | $26.52M |
| Mawer investment management | 662.63K | 1.14% | $175.94M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 1.97M | 0.03% | 309.66K |
| Channing capital management | 266.88K | 1.81% | 266.88K |
| Vanguard fiduciary trust | 107.65K | 0.01% | 107.65K |
| Mirae asset global etfs | 232.50K | 0.08% | 69.39K |
| Mirova | 65.01K | 0.70% | 65.01K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Macquarie group | - | - | -209.22K |
| Ubs group | 135.96K | 0.01% | -180.28K |
| T. rowe price investment management | - | - | -145.15K |
| Mawer investment management | 662.63K | 1.14% | -140.97K |
| Ophir asset management pty | - | - | -125.43K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Channing capital management | 266.88K | 1.81% | 266.88K | $70.86M |
| Vanguard fiduciary trust | 107.65K | 0.01% | 107.65K | $28.58M |
| Mirova | 65.01K | 0.70% | 65.01K | $17.26M |
| Shannon river fund management | 19.27K | 0.98% | 19.27K | $5.12M |
| Two sigma advisers, lp | 15.10K | 0.01% | 15.10K | $3.76M |
Sold Out
| Holder | Change |
|---|---|
| Retirement wealth solutions | -1.00 |
| Claris advisors, llc / mo / | -1.00 |
| Td capital management | -1.00 |
| Mendota financial group | -1.00 |
| Huntington national bank | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 367 | 1.38% | 18,471,170 | -1.80% | 110 | 0.87% | 169 | -14.21% | 141 | 33.02% |
| Dec 31, 2025 | 203 | -43.30% | 9,943,358 | -46.81% | 59 | 0.52% | 113 | -33.14% | 56 | -58.21% |
| Sep 30, 2025 | 188 | -44.87% | 9,022,213 | -50.45% | 51 | 0.46% | 87 | -48.82% | 70 | -43.55% |
| Jun 30, 2025 | 349 | 7.38% | 18,661,273 | -4.05% | 109 | 0.84% | 173 | 13.07% | 124 | 6.90% |
| Mar 31, 2025 | 5 | -98.42% | 396,449 | -97.81% | 2 | 0.02% | 2 | -98.82% | 2 | -97.96% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 943.62K | 5.72% | 201.00 |
| American Funds SMALLCAP World A | 619.48K | 3.76% | -54.86K |
| Janus Henderson US SMID Cap Growth MA | 559.48K | 3.33% | 559.45K |
| Vanguard US Total Market Shares ETF | 525.36K | 3.13% | 572.00 |
| Vanguard Total Stock Mkt Idx Inv | 499.76K | 3.03% | 1.39K |
| Vanguard Information Technology ETF | 393.94K | 2.39% | 1.58K |
| iShares Russell 2000 ETF | 369.93K | 2.24% | 3.10K |
| Vanguard Small Cap Index | 360.73K | 2.19% | -713.00 |
| UBS (Lux) Security Equity BH CHF | 356.20K | 2.15% | 1.20K |
| Janus Henderson US SMID Cap Growth | 352.03K | 2.14% | -21.84K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 04, 2026 | CHOPRA DEEPAK | - | Sell | $5.64M |
| Feb 02, 2026 | CHOPRA DEEPAK | - | Sell | $5.02M |
| Nov 10, 2025 | CHOPRA DEEPAK | EXECUTIVE CHAIRMAN | Sell | $5.71M |
| Nov 07, 2025 | Morben Paul Keith | PRES., OPTOELECTRONICS DIV | Sell | $116.11K |
| Nov 07, 2025 | HAWKINS JAMES B | - | Sell | $424.73K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 1 |
| 2026 Q1 | - | 1 |
| 2025 Q4 | - | 4 |
| 2025 Q3 | - | 2 |
| 2025 Q2 | - | 7 |
OSIS Ownership FAQ
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