GLAUKOS Corp

GKOSNYSE

$163.75+0.58 (+0.36%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

GLAUKOS Corp price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+93.8%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	16.21%	$1.33B	0.02%	Not reported
Jupiter Topco LLC	8.26%	$680M	0.28%	Not reported
Vanguard Portfolio Management LLC	5.64%	$464M	0.02%	Not reported
Primecap Management Co	5.17%	$425M	0.25%	Reduce 9.79%
Vanguard Capital Management LLC	4.33%	$357M	0.01%	Not reported
State Street Corp	3.93%	$324M	0.01%	Not reported
Millennium Management LLC	2.69%	$221M	0.08%	Not reported
Holocene Advisors, LP	2.57%	$212M	0.48%	Add 9.48%
Geode Capital Management, LLC	2.49%	$205M	0.01%	Not reported
Citadel Advisors LLC	2.36%	$194M	0.02%	Not reported
Ameriprise Financial Inc	2.23%	$184M	0.04%	Not reported
Alliancebernstein L.P.	2.13%	$135M	0.04%	Not reported
Capital World Investors	1.73%	$142M	0.02%	Add 2.72%
Goldman Sachs Group Inc	1.52%	$125M	0.01%	Not reported
Charles Schwab Investment Management Inc	1.28%	$105M	0.01%	Not reported
Invesco Ltd.	1.20%	$98.8M	0.01%	Not reported
William Blair Investment Management, LLC	1.12%	$92.5M	0.28%	Reduce 38.38%
Driehaus Capital Management LLC	1.11%	$90.9M	0.53%	Add 33.34%
Nomura Asset Management International Inc.	1.10%	$90.5M	0.14%	Add 5.78%
Northern Trust Corp	1.04%	$85.6M	0.01%	Not reported
Braidwell LP	1.01%	$82.7M	3.06%	Reduce 22.47%
Morgan Stanley	1.00%	$82.4M	0.00%	Not reported
Bank of America Corp	1.00%	$82.1M	0.01%	Not reported
UBS Group AG	0.98%	$80.8M	0.01%	Not reported
Fuller & Thaler Asset Management, Inc.	0.90%	$74.1M	0.20%	Not reported
Norges Bank	0.85%	$69.7M	0.01%	Not reported
Balyasny Asset Management L.P.	0.84%	$68.7M	0.09%	Not reported
Jennison Associates LLC	0.84%	$68.7M	0.04%	Add 0.92%
Westfield Capital Management Co LP	0.82%	$67.6M	0.22%	Add 0.25%
Loomis Sayles & Co L P	0.80%	$65.6M	0.08%	Add 11.43%
Summit Partners Public Asset Management, LLC	0.76%	$62.4M	1.10%	New Not reported
Clearbridge Investments, LLC	0.73%	$60.2M	0.05%	Not reported
Wellington Management Group LLP	0.73%	$59.8M	0.01%	Add 187.10%
Lord, Abbett & Co. LLC	0.71%	$58.8M	0.17%	Add 249.76%
Vanguard Fiduciary Trust Co	0.71%	$58.3M	0.01%	Not reported
Vaughan Nelson Investment Management, L.P.	0.71%	$58.2M	0.51%	Not reported
FMR LLC	0.64%	$52.8M	0.00%	Not reported
Principal Financial Group Inc	0.61%	$50.1M	0.02%	Not reported
Bank of New York Mellon Corp	0.61%	$49.9M	0.01%	Not reported
Nuveen, LLC	0.55%	$45.1M	0.01%	Not reported
Marshall Wace, LLP	0.53%	$44M	0.03%	Not reported
Artisan Partners Limited Partnership	0.53%	$43.2M	0.07%	Reduce 49.09%
Neuberger Berman Group LLC	0.51%	$42M	0.03%	Not reported
Riverbridge Partners LLC	0.48%	$39.4M	1.10%	Reduce 34.89%
Anomaly Capital Management, LP	0.47%	$38.6M	1.47%	New Not reported
Champlain Investment Partners, LLC	0.47%	$38.5M	0.99%	Reduce 13.75%
Toronto Dominion Bank	0.46%	$37.5M	0.04%	Not reported
Longaeva Partners L.P.	0.40%	$33M	0.72%	New Not reported
Assenagon Asset Management S.A.	0.37%	$30.4M	0.02%	Not reported
C WorldWide Group Holding A/S	0.35%	$29M	0.70%	Not reported

50 of 339 holders

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