OSI Systems Ownership | Who Owns OSI Systems?
OSI Systems Ownership Summary
OSI Systems is owned by 59.40% institutional investors, 4.73% insiders, and 35.87% retail investors. 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 5.86% of its assets in OSI Systems shares.
OSIS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | OSI Systems | 59.40% | 4.73% | 35.87% |
| Sector | Technology Stocks | 35.18% | 13.13% | 51.68% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 2.61M | 15.31% | $358.80M |
| Blackrock funding, inc. /de | 2.56M | 15.30% | $653.44M |
| Vanguard group | 2.11M | 12.58% | $537.31M |
| Janus henderson group | 1.23M | 7.36% | $206.07M |
| Fmr | 1.09M | 6.35% | $271.74M |
| Mawer investment management | 803.60K | 4.80% | $204.97M |
| Capital investors | 674.34K | 4.03% | $172.00M |
| State street | 665.89K | 3.88% | $165.97M |
| Ubs asset management americas | 498.25K | 2.98% | $127.08M |
| Geode capital management | 410.96K | 2.46% | $104.84M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Prospect capital advisors | 52.48K | 6.78% | $13.08M |
| Neumeier poma investment counsel | 195.79K | 4.13% | $49.94M |
| Millrace asset group | 16.34K | 2.18% | $2.25M |
| Bridge city capital | 21.22K | 1.59% | $5.41M |
| Intrinsic edge capital management | 31.16K | 1.42% | $7.95M |
| Cascade investment advisors | 9.36K | 1.40% | $2.39M |
| Systematic financial management lp | 233.25K | 1.40% | $59.49M |
| Thematics asset management | 106.41K | 1.20% | $26.52M |
| Manatuck hill partners | 14.30K | 1.18% | $3.56M |
| Mawer investment management | 803.60K | 1.15% | $204.97M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| William blair investment management | 191.33K | 0.14% | 191.33K |
| Price t rowe associates inc /md/ | 244.92K | 0.01% | 190.81K |
| Mirae asset global etfs | 161.48K | 0.06% | 161.48K |
| Blackrock funding, inc. /de | 2.56M | 0.01% | 57.65K |
| Driehaus capital management | 147.05K | 0.26% | 44.34K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Macquarie group | - | - | -209.22K |
| T. rowe price investment management | - | - | -145.15K |
| Ophir asset management pty | - | - | -125.43K |
| Fmr | 1.09M | 0.01% | -100.41K |
| Balyasny asset management | 6.46K | 0.00% | -98.77K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| William blair investment management | 191.33K | 0.14% | 191.33K | $48.80M |
| Robeco schweiz | 30.55K | 0.17% | 30.55K | $7.79M |
| Two sigma advisers, lp | 15.10K | 0.01% | 15.10K | $3.76M |
| Numerai gp | 13.82K | 0.49% | 13.82K | $3.44M |
| Jefferies financial group | 13.74K | 0.02% | 13.74K | $3.50M |
Sold Out
| Holder | Change |
|---|---|
| Mendota financial group | -1.00 |
| Claris advisors, llc / mo / | -1.00 |
| Huntington national bank | -2.00 |
| Continuum advisory | -3.00 |
| Clearstead trust | -3.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| Dec 31, 2024 | 137 | -50.72% | 6,894,087 | -58.17% | 41 | 0.43% | 71 | -48.18% | 43 | -48.81% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 965.91K | 5.86% | -82.74K |
| American Funds SMALLCAP World A | 674.34K | 4.09% | - |
| 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 | 506.31K | 3.07% | 1.31K |
| Vanguard Information Technology ETF | 392.88K | 2.39% | 1.62K |
| iShares Russell 2000 ETF | 391.53K | 2.38% | 35.99K |
| Janus Henderson US SMID Cap Growth | 373.87K | 2.27% | -146.90K |
| Janus Henderson Triton D | 373.87K | 2.27% | -66.64K |
| Vanguard Small Cap Index | 365.36K | 2.22% | -65.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| 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 |
| Oct 01, 2025 | CHOPRA DEEPAK | EXECUTIVE CHAIRMAN | Sell | $4.92M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 1 |
| 2025 Q4 | - | 4 |
| 2025 Q3 | - | 2 |
| 2025 Q2 | - | 7 |
| 2025 Q1 | - | 4 |
OSIS Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools