GLAUKOS Corp

GKOS

Exchange: NYSE
Industry: Surgical & Medical Instruments & Apparatus
SEC CIK: 0001192448

SEC filings (opens in a new tab)

In the last 90 days, GLAUKOS Corp insiders filed 0 open-market purchases and 11 sales; 367 institutions reported holding it in 13F filings for Q2 2026, worth $8.44B in total; no superinvestor holds it.

Q1 2022 vs. Q4 2021

How the institutions holding GLAUKOS Corp changed between Q4 2021 and Q1 2022.

All holders in Q1 2022 All holders in Q4 2021

13F holders of GKOS: Q4 2021 compared with Q1 2022
Measure	Q4 2021	Of which not filed for Q1 2022	Q1 2022	Change
Holders	208	3	211	+6
Shares	43.5M	4.89K	43.2M	−332.6K (−0.8%)
Value	$1.94B	$217.0K	$2.50B	+$563.2M (+29.1%)

3 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so the changes leave them out.

New holders (29)

Institutions that held GLAUKOS Corp at the end of Q1 2022 but not at the end of Q4 2021.

Institutions new to GKOS in Q1 2022
Institution	Shares	Value	% of portfolio
Castleark Management LLC	64,840	$3.75M	0.16%
Group One Trading, L.P.	33,206	$1.92M	0.04%
Susquehanna Fundamental Investments, LLC	27,213	$1.57M	0.03%
Amalgamated Financial Corp.	22,885	$1.32M	0.01%
Brookfield Asset Management Inc.	16,813	$972.0K	0.00%
Natixis Advisors, L.P.	11,652	$674.0K	0.00%
Balyasny Asset Management LLC	11,618	$672.0K	0.00%
Graham Capital Management, L.P.	9,358	$541.0K	0.02%
First Trust Advisors LP	9,065	$524.0K	0.00%
Banque Cantonale Vaudoise	8,406	$486.0K	0.02%
Baker Tilly Wealth Management, LLC	5,419	$313.0K	0.03%
Commonwealth Equity Services, LLC	5,405	$312.0K	0.00%
HRT Financial LP	5,362	$310.0K	0.00%
Westwood Holdings Group Inc.	4,498	$260.0K	0.00%
Corton Capital Inc.	4,408	$255.0K	0.11%
Crossmark Global Holdings, Inc.	4,310	$249.0K	0.01%
Prelude Capital Management, LLC	4,024	$233.0K	0.01%
CIBC Asset Management Inc	3,858	$223.0K	0.00%
Quantum Private Wealth, LLC	3,855	$222.0K	0.10%
Y-Intercept (Hong Kong) Ltd	3,689	$213.0K	0.05%
HighTower Advisors, LLC	3,595	$208.0K	0.00%
Walleye Trading LLC	1,490	$86.0K	0.00%
MCF Advisors LLC	409	$24.0K	0.00%
Northwestern Mutual Wealth Management Co	248	$14.0K	0.00%
Money Concepts Capital Corp	200	$12.0K	0.00%
Meeder Asset Management Inc	28	$2.00K	0.00%
Global Retirement Partners, LLC	21	$1.00K	0.00%
Elequin Capital LP	22	$1.00K	0.00%
TCWP LLC	10	$0	0.00%

Sold out (23)

Institutions that held GLAUKOS Corp at the end of Q4 2021 and filed for Q1 2022 without it.

Institutions that sold out of GKOS in Q1 2022
Institution	Shares, Q4 2021	Value, Q4 2021
D. E. Shaw & Co., Inc.	250,058	$11.1M
Two Sigma Investments, LP	117,106	$5.20M
Twinbeech Capital LP	53,994	$2.40M
Engineers Gate Manager LP	43,934	$1.95M
PDT Partners, LLC	36,451	$1.62M
Duality Advisers, LP	33,220	$1.48M
Natixis	26,000	$1.16M
Squarepoint Ops LLC	23,556	$1.05M
Quantbot Technologies LP	13,920	$618.0K
Allstate Corp	10,243	$455.0K
Caption Management, LLC	10,044	$446.0K
Cutler Group LP	8,500	$377.0K
Fox Run Management, L.L.C.	6,899	$307.0K
Qube Research & Technologies Ltd	6,186	$275.0K
Quantamental Technologies LLC	4,609	$205.0K
Simplex Trading, LLC	1,467	$65.0K
Eaton Vance Management	1,202	$54.0K
Point72 Hong Kong Ltd	720	$32.0K
First Horizon Advisors, Inc.	349	$15.0K
Bessemer Group Inc	88	$4.00K
Sageworth Trust Co	50	$2.00K
Baystate Wealth Management LLC	50	$2.00K
Assetmark, Inc	15	$1.00K

Not filed for Q1 2022 yet (3)

Institutions that held GLAUKOS Corp at the end of Q4 2021 and haven't filed a 13F for Q1 2022. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding GKOS in Q4 2021 that haven't filed for Q1 2022
Institution	Shares, Q4 2021	Value, Q4 2021
6 Meridian	4,520	$201.0K
NEXT Financial Group, Inc	361	$16.0K
Bell Investment Advisors, Inc	11	$0