Glaukos Corporation (GKOS)
NYSE: GKOS · Surgical & Medical Instruments & Apparatus · Aliso Viejo, CA · filing with the SEC since 2002
Who owns Glaukos Corporation
As filed with the SECHolders of 5% or more
5
Blackrock, Inc. holds 14.4% of Common Stock, as its SCHEDULE 13G/A filed Apr 29, 2025 says.
Directors and officers
11
report now, of 18 people on the record since 2015. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 29, 2025 · Common Stock
Janus Henderson Group PLC
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock · 5.3% in Feb 17, 2026
Primecap Management Co/ca/
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Fmr LLC
SCHEDULE 13G/A · filed Aug 7, 2025 · COMMON STOCK · reported falling below 5%, from 11% in Feb 12, 2025
Thomas W. Burns
SCHEDULE 13G/A · filed Feb 12, 2025 · Common Stock · reported falling below 5%
Wellington Management Group LLP
SCHEDULE 13G/A · filed Feb 10, 2026 · Common Stock · reported falling below 5%, from 5.7% in Aug 12, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What GKOS reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Mobius Therapeutics, LLC
A company bought · acquisition · May 2025 · owns, named in the 10-K filed Feb 23, 2026
18 subsidiaries in 17 countries, from the list filed with the 10-K filed Feb 23, 2026.
Insider tradesForm 4
66sales
0purchases
41sales on a scheduled plan
8people selling
$80.6Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 5, 2025 to Nov 5, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 5, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 32 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Burns Thomas William | CHAIRMAN & CEO | 2 | $31.6M | 2 | 0 | $0 |
| Gilliam Joseph E | PRESIDENT & COO | 9 | $17.2M | 5 | 0 | $0 |
| Navratil Tomas | CHIEF DEVELOPMENT OFFICER | 30 | $14.5M | 20 | 0 | $0 |
| Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | 9 | $10.2M | 9 | 0 | $0 |
| Kliman Gilbert H | director | 5 | $3.0M | 0 | 0 | $0 |
| Stapley Marc | director | 5 | $1.9M | 5 | 0 | $0 |
| Weisner Aimee S | director | 4 | $1.8M | 0 | 0 | $0 |
| Wen Leana | director | 2 | $300,000 | 0 | 0 | $0 |