Security key
377322102
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 61,056,629
- Total 13F value
- $6,306,184,856
- Share change
- +4,083,561
- Put/Call ratio
- 175%
- SEC-reported price per share
- $103.29
- Number of holders
- 297
- Value change
- +$430,126,517
- Number of buys
- 187
- Number of sells
- 147
- Shares outstanding
- 58,134,728
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
297
Top holders
10
GKOS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
GLAUKOS Corp SEC filings
GLAUKOS Corp company facts
Broader feeds
Reporting periods
Holder history for CUSIP 377322102
Recent filing periods:
Ownership snapshot
Top reported holders of GKOS - GLAUKOS Corp - 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
31 Mar 2025
13F
13D/G
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%
Thomas W. Burns
4.4%
FMR LLC
11%
VANGUARD GROUP INC
10%
WELLINGTON MANAGEMENT GROUP LLP
3.9%
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. |
13F
13D/G
Company
|
14%
from 13D/G
|
$842,119,411
8,556,385 shares
|
— | 31 Mar 2025 |
| Thomas W. Burns |
13D/G
|
4.4%
|
$239,613,202
2,553,695 shares
|
$0 | 31 Dec 2024 |
| FMR LLC |
13F
Company
|
11%
|
$643,435,304
6,537,647 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
10%
|
$587,086,618
5,965,115 shares
|
— | 31 Mar 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
3.9%
|
$225,459,552
2,290,790 shares
|
— | 31 Mar 2025 |
| STATE STREET CORP |
13F
Company
|
3.4%
|
$195,303,959
1,984,393 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
297
Shares
61,056,629
Rows available
297
| 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
313
Q2 2025 holders
297
Holder diff
-16
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend