Glaukos Ownership | Who Owns Glaukos?

Overview Forecast RevenueFinancials Chart Transcripts

Glaukos Ownership Summary

Glaukos is owned by 53.32% institutional investors, 3.42% insiders, and 43.26% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 15.98% of GKOS shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.03% of its assets in Glaukos shares.

GKOS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Glaukos	53.32%	3.42%	43.26%
Sector	Healthcare Stocks	57.39%	9.93%	32.68%
Industry	Medical Device Stocks	40.18%	9.93%	49.89%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	8.80M	15.98%	$1.32B
Blackrock	8.04M	15.85%	$951.27M
Fmr	6.11M	11.10%	$916.40M
Vanguard group	5.97M	10.86%	$895.89M
Wellington management group llp	2.16M	3.92%	$323.80M
State street	2.06M	3.75%	$309.39M
Ameriprise financial	1.93M	3.51%	$289.51M
Invesco	1.46M	2.65%	$218.71M
Brown capital management	1.35M	2.45%	$202.10M
Lord, abbett	1.31M	2.38%	$196.35M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Brown capital management	1.35M	4.68%	$202.10M
Atika capital management	239.50K	3.81%	$35.91M
First turn management	96.10K	2.58%	$14.41M
Avidity partners management lp	170.00K	2.50%	$25.49M
Iron triangle partners lp	150.00K	2.48%	$22.49M
Summit partners public asset management	730.01K	2.09%	$109.46M
Taylor frigon capital management	25.01K	1.90%	$3.75M
Altium capital management lp	40.00K	1.70%	$6.00M
Gilder gagnon howe	825.28K	1.33%	$123.74M
Braidwell lp	288.88K	1.28%	$43.31M

Top Buyers

Holder	Shares	% Assets	Change
William blair investment management	809.59K	0.30%	809.59K
Westfield capital management co lp	807.15K	0.53%	804.61K
Alliancebernstein	816.15K	0.04%	755.03K
1832 asset management	723.30K	0.09%	689.50K
Norges bank	563.49K	0.01%	563.49K

Top Sellers

Holder	Shares	% Assets	Change
Fmr	6.11M	0.05%	-472.73K
Rtw investments, lp	-	-	-386.29K
Artisan partners limited partnership	471.85K	0.11%	-323.40K
Fred alger management	764.96K	0.55%	-312.02K
Brown capital management	1.35M	4.68%	-286.73K

New Positions

Holder	Shares	% Assets	Change	Value
William blair investment management	809.59K	0.30%	809.59K	$121.39M
Norges bank	563.49K	0.01%	563.49K	$84.49M
Holocene advisors, lp	309.47K	0.15%	309.47K	$46.40M
Raymond james financial	112.77K	0.01%	112.77K	$16.91M
Eagle asset management	89.43K	0.06%	89.43K	$10.50M

Sold Out

Holder	Change
Natixis	-1.00
National bank of canada /fi/	-2.00
Mendota financial group	-4.00
Hollencrest capital management	-5.00
Capital performance advisors llp	-5.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2024	188	-42.68%	29,346,043	-46.02%	53	0.55%	100	-45.05%	59	-31.40%
Sep 30, 2024	326	10.88%	54,359,548	0.58%	98	0.87%	180	9.09%	86	7.50%
Jun 30, 2024	294	9.70%	54,047,418	5.23%	106	0.99%	165	47.32%	80	-27.27%
Mar 31, 2024	268	-	51,362,152	0.85%	103	0.95%	112	-17.04%	110	39.24%
Dec 31, 2023	268	6.77%	50,928,808	2.99%	104	1.01%	135	20.54%	79	-4.82%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	3.41M	6.03%	1.94K
Vanguard US Total Market Shares ETF	1.66M	2.93%	135.33K
Vanguard Total Stock Mkt Idx Inv	1.65M	2.92%	1.06K
Vanguard Small Cap Index	1.34M	2.36%	1.09K
iShares Russell 2000 ETF	1.29M	2.28%	-11.16K
Vanguard Health Care Inv	849.15K	1.54%	-
Vanguard Institutional Extnd Mkt Idx Tr	837.24K	1.48%	3.35K
PRIMECAP Odyssey Aggressive Growth	813.23K	1.47%	-18.31K
Brown Capital Mgmt Small Co Inv	758.29K	1.38%	-197.20K
Vanguard Small Cap Growth Index Inv	750.94K	1.33%	-4.47K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 25, 2025	Thurman Alex R.	SVP & CHIEF FINANCIAL OFFICER	Sell	$3.35K
Mar 25, 2025	Thurman Alex R.	SVP & CHIEF FINANCIAL OFFICER	Sell	$46.20K
Mar 25, 2025	Thurman Alex R.	SVP & CHIEF FINANCIAL OFFICER	Sell	$112.85K
Feb 26, 2025	Foley Mark J	-	Sell	$2.50M
Feb 14, 2025	Navratil Tomas	CHIEF DEVELOPMENT OFFICER	Sell	$502.63K

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	-	-
2025 Q1	-	5
2024 Q4	-	5
2024 Q3	-	10
2024 Q2	-	39

GKOS Ownership FAQ

Who Owns Glaukos?

Glaukos shareholders are primarily institutional investors at 53.32%, followed by 3.42% insiders and 43.26% retail investors. The average institutional ownership in Glaukos's industry, Medical Device Stocks, is 40.18%, which Glaukos exceeds.

Who owns the most shares of Glaukos?

Glaukos’s largest shareholders are Blackrock funding, inc. /de (8.8M shares, 15.98%), Blackrock (8.04M shares, 15.85%), and Fmr (6.11M shares, 11.10%). Together, they hold 42.94% of Glaukos’s total shares outstanding.

Does Blackrock own Glaukos?

Yes, BlackRock owns 15.85% of Glaukos, totaling 8.04M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 951.27M$. In the last quarter, BlackRock increased its holdings by 140.78K shares, a 1.78% change.

Who is Glaukos’s biggest shareholder by percentage of total assets invested?

Brown capital management is Glaukos’s biggest shareholder by percentage of total assets invested, with 4.68% of its assets in 1.35M Glaukos shares, valued at 202.1M$.

Who is the top mutual fund holder of Glaukos shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Glaukos shares, with 6.03% of its total shares outstanding invested in 3.41M Glaukos shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools