Security key
671044105
- Security type / class
- Equity / Common Stock
- Shares outstanding
- 16,432,213
- Total 13F shares
- 18,809,721
- Share change
- +41,393
- Total reported value
- $4,799,479,840
- Put/Call ratio
- 82%
- Reported price per share
- $255.06
- Number of holders
- 358
- Value change
- +$13,254,807
- Number of buys
- 178
- Number of sells
- 152
Security identity
Holder snapshot
Report period
Q4 2025
Institutions
358
Top holders
10
OSIS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
OSI SYSTEMS INC SEC filings
OSI SYSTEMS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 671044105
Recent filing periods:
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.
Lead holder
BlackRock, Inc.
13D/G signal
BlackRock, Inc.
Evidence rows
15
Latest as of
31 Dec 2025
13F
13D/G
3/4/5
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Rank 1 holder
BlackRock, Inc.
13F
13D/G
- Ownership
- 14%
- Position
- $624.16M
Rank 2 holder
Mawer Investment Management Ltd.
13F
13D/G
- Ownership
- 4.7%
- Position
- $213.44M
Rank 3 holder
Alan I. Edrick
3/4/5
- Ownership
- 1.8%
- Position
- $41.54M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$624,160,764
2,504,256 shares
|
— | 30 Sep 2025 |
| Mawer Investment Management Ltd. |
13F
13D/G
Company
|
4.7%
from 13D/G
|
$213,444,899
856,383 shares
|
— | 30 Sep 2025 |
| Alan I. Edrick |
3/4/5
EVP & CFO
|
1.8%
|
$41,543,927
295,455 shares
|
— | 31 Dec 2025 |
| Ajay Mehra |
3/4/5
PRESIDENT AND CEO, Director
|
0.62%
|
$14,811,529
101,865 shares
|
— | 31 Dec 2025 |
| Victor S. Sze |
3/4/5
GENERAL COUNSEL
|
0.56%
|
$13,740,028
92,637 shares
|
— | 31 Dec 2025 |
| William Francis Ballhaus Jr. |
3/4/5
Director
|
0.17%
|
$7,116,051
28,551 shares
|
-$133,666 | 04 Nov 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 Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
358
Shares
18,809,721
Rows available
358
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* 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 failed the local validity check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
345
Q4 2025 holders
358
Holder diff
13
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend