Glaukos GKOS Institutional Ownership

NYSE GKOS

$165.43 +1.24 (+0.76%)

As of: Oct 1, 2026 · 12:37 PM EDT

Institutions by Trading Activity

367 Institutions

Increased 221 60.2%

Unchanged 44 12.0%

Reduced 102 27.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

104.44%

▲+4.76 pp QoQ

Shares Held by Institutions

61.43Mn

of 58.82Mn outstanding

▲+19.90% QoQ

Shares Outstanding

58.82Mn

-2.61Mn held outside 13F filers

Institutional Investors

367

filed 13F for Jun 2026

▲+33 vs prior quarter

Net Shares Added (QoQ)

+10.20Mn

accumulated since last quarter

Value of Holdings

$10.09Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

GLAUKOS Corp (NYSE:GKOS) appears in 367 institutional 13F filings for the quarter ending June 2026.

These investors collectively held 104.4% of Glaukos's outstanding shares in June 2026, up from 99.7% in March 2026.
Their total shares held in GKOS increased 19.9% from the prior quarter, while the number of investors in Glaukos increased 23.57% year over year.
Of these 367 funds, 221 grew their exposure to Glaukos, 102 cut back, and 44 maintained positions.
The aggregate institutional position in Glaukos amounted to 61.43Mn shares as of June 2026, up by 10.2Mn shares quarter on quarter, and up 1.19Mn shares year over year.
BlackRock, Inc. leads ownership in GKOS with 9.54Mn shares as of June 30, 2026, equal to 16.22% of outstanding shares.
The biggest buyers of Glaukos for the quarter ending June 2026 included Jupiter Topco LLC (4.86Mn), Sixth Street Partners Management Company, L.P. (752.64K), FULLER & THALER ASSET MANAGEMENT, INC. (529.92K), NORGES BANK (498.5K), BALYASNY ASSET MANAGEMENT L.P. (491.64K).
The biggest sellers of Glaukos for the quarter ending June 2026 included Goldman Sachs Group Inc (477.94K), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (412.14K), PRIMECAP MANAGEMENT CO/CA/ (329.92K), Artisan Partners Limited Partnership (298.2K), Ameriprise Financial Inc (295.72K).
According to Business Quant data, leading holders of GKOS for June 2026 are BlackRock, Inc. (9.54Mn), Jupiter Topco LLC (4.86Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (3.32Mn), PRIMECAP MANAGEMENT CO/CA/ (3.04Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.55Mn), State Street Corp (2.32Mn), MILLENNIUM MANAGEMENT LLC (1.58Mn), Holocene Advisors, LP (1.51Mn), GEODE CAPITAL MANAGEMENT, LLC (1.46Mn), CITADEL ADVISORS LLC (1.39Mn).

Form 13F Holdings

367 Institutional Holders

Report period 30 Jun, 2026

Total shares held 61.43Mn

Of outstanding 104.44%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	9,540,056	16.22%	▲450,188	+4.95%	$1.33Bn
2	Jupiter Topco LLC	0002146052	4,862,894	8.27%	▲4,862,894	0.00%	$679.61Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	3,321,839	5.65%	▲113,476	+3.54%	$464.26Mn
4	PRIMECAP MANAGEMENT CO/CA/	0000763212	3,040,705	5.17%	▼329,923	-9.79%	$424.97Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,551,132	4.34%	▲42,361	+1.69%	$356.55Mn
6	State Street Corp	0000093751	2,315,568	3.94%	▲132,951	+6.09%	$323.67Mn
7	MILLENNIUM MANAGEMENT LLC	0001273087	1,581,016	2.69%	▲407,320	+34.70%	$220.96Mn
8	Holocene Advisors, LP	0001700574	1,514,931	2.58%	▲131,216	+9.48%	$211.73Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,463,448	2.49%	▲106,995	+7.89%	$204.57Mn
10	CITADEL ADVISORS LLC	0001423053	1,390,017	2.36%	▼56,909	-3.93%	$194.27Mn
11	Ameriprise Financial Inc	0000820027	1,315,057	2.24%	▼295,717	-18.36%	$183.79Mn
12	ALLIANCEBERNSTEIN L.P.	0001109448	1,254,703	2.13%	▼142,853	-10.22%	$135.08Mn
13	Capital World Investors	0001422849	1,015,943	1.73%	▲26,883	+2.72%	$141.99Mn
14	Goldman Sachs Group Inc	0000886982	897,021	1.53%	▼477,937	-34.76%	$125.37Mn
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	752,642	1.28%	▲38,253	+5.35%	$105.19Mn
15	Sixth Street Partners Management Company, L.P.	0001812095	752,642	1.28%	▲752,642	0.00%	$105.19Mn
16	Invesco Ltd.	0000914208	706,877	1.20%	▼207,311	-22.68%	$98.79Mn
17	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	679,632	1.16%	▲343,207	+102.02%	$94.99K
18	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	0001644956	661,675	1.12%	▼412,144	-38.38%	$92.48Mn
19	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	650,571	1.11%	▲162,659	+33.34%	$90.92Mn

Showing 1 to 20 of 367 holders