Security key
671044105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 18,689,354
- Total 13F value
- $4,200,189,299
- Share change
- -736,386
- Put/Call ratio
- 24%
- SEC-reported price per share
- $224.86
- Number of holders
- 337
- Value change
- -$159,319,080
- Number of buys
- 177
- Number of sells
- 148
- Shares outstanding
- 16,490,200
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
337
Top holders
10
OSIS full security history
Ownership snapshot
Full 13F holder table
OSI SYSTEMS INC SEC filings
OSI SYSTEMS INC company facts
Broader feeds
Ownership snapshot
Top reported holders of OSIS - OSI SYSTEMS INC - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Jun 2025
13D/G
13F
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 14%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
14%
VANGUARD GROUP INC
13%
Janus Henderson Group Ltd.
7.5%
FMR LLC
7.2%
UBS AM, a distinct business unit ...
5.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
14%
|
$537,376,724
2,389,828 shares
|
$0 | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
13%
|
$410,645,861
2,113,028 shares
|
— | 31 Mar 2025 |
| Janus Henderson Group Ltd. |
13F
Company
|
7.5%
|
$238,741,469
1,234,959 shares
|
— | 31 Mar 2025 |
| FMR LLC |
13F
Company
|
7.2%
|
$232,276,572
1,195,207 shares
|
— | 31 Mar 2025 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
Company
|
5.3%
|
$170,512,556
877,393 shares
|
— | 31 Mar 2025 |
| STATE STREET CORP |
13F
Company
|
4.4%
|
$141,217,355
726,651 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
337
Shares
18,689,354
Rows available
337
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
306
Q2 2025 holders
337
Holder diff
31
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|