GKOS

GKOS 13F Holders & Ownership Data (339 Funds)

Glaukos CORP

-$207.0M

Net Activity

Institutions Holding

339

Popularity Rank

#1747

Avg Weight

0.08%

Total Value

$6.3B

Ownership Trend

339 institutions currently hold GKOS, with 152 net buyers and 173 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

173

Net Buying Institutions

152

Key Holders

Key Holders

Top 5 by Value

BlackRock, Inc.

Janus Henderson Group PLC

Primecap Management Co/ca/

Vanguard Portfolio Management LLC

Vanguard Capital Management LLC

Top 5 by Conviction

Brown Capital Management LLC

PFM Health Sciences, LP

Riverbridge Partners LLC

C WorldWide Group Holding A/S

View all 339 holding institutions

Quarterly Activity

Recent Activity

+$2.6B

Total Buy Value

$4.1B

Total Sell Value

New buy44

Trim133

Add108

Sold out40

152

Net Buyers

173

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

5

Filings (90d)

$4.95M

Total Est. Value

32K shares

Planned Shares

Last Filed 2026-07-16

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
Thurman Alex R.	Officer	2026-07-16	10K shares	$1.60M
Thurman Alex R.	Officer	2026-07-09	10K shares	$1.55M
Thurman Alex R.	Officer	2026-07-06	10K shares	$1.50M
Navratil Tomas	Officer	2026-07-01	716 shares	$100K
Navratil Tomas	Officer	2026-06-16	2K shares	$201K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding GLAUKOS CORP (GKOS)?

Major stakeholders currently include BlackRock, Inc. ($978.6M), Janus Henderson Group PLC ($575.8M), Primecap Management Co/ca/ ($362.9M). Based on the latest 13F filings, there are a total of 339 tracked investment funds and institutions maintaining positions in GKOS.

What is the overall institutional sentiment toward GKOS recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $207.0M, driven by 152 managers accumulating shares while 173 reduced their exposure.

Which institutions have been selling or reducing their GKOS positions?

In the latest period, 133 funds trimmed their holdings, and 40 managers completely exited their positions. The aggregate reported sell value was $4.1B.

Are there any notable investors adding GKOS to their portfolios?

Yes, buying activity remains notable. 44 institutions opened new positions in {ticker}, and 108 existing holders added to their shares. The total reported buy value for the quarter amounted to $2.6B.

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