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GLAUKOS Corp

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

In the last 90 days, GLAUKOS Corp insiders filed 0 open-market purchases and 7 sales; 368 institutions reported holding it in 13F filings for Q2 2026, worth $8.44B in total; no superinvestor holds it.

13F holders, Q4 2023

Institutional positions in GLAUKOS Corp as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
246
+15 vs. Q3 2023
Shares held
50.9M
+1.15M (+2.3%) vs. Q3 2023
Total value
$4.05B
+$302.7M (+8.1%) vs. Q3 2023
New holders
47
84 more added
Sold out
32
80 more reduced

2 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting GKOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 246 institutions
Q1 2021: 217 institutionsQ2 2021: 219 institutionsQ3 2021: 206 institutionsQ4 2021: 208 institutionsQ1 2022: 211 institutionsQ2 2022: 199 institutionsQ3 2022: 222 institutionsQ4 2022: 215 institutionsQ1 2023: 203 institutionsQ2 2023: 220 institutionsQ3 2023: 233 institutionsQ4 2023: 246 institutionsQ1 2024: 254 institutionsQ2 2024: 282 institutionsQ3 2024: 315 institutionsQ4 2024: 323 institutionsQ1 2025: 318 institutionsQ2 2025: 299 institutionsQ3 2025: 317 institutionsQ4 2025: 334 institutionsQ1 2026: 338 institutionsQ2 2026: 368 institutions
Value heldQ4 2023: $4.05B
Q1 2021: $4.13BQ2 2021: $4.10BQ3 2021: $2.13BQ4 2021: $1.94BQ1 2022: $2.50BQ2 2022: $2.01BQ3 2022: $2.36BQ4 2022: $2.03BQ1 2023: $2.37BQ2 2023: $3.45BQ3 2023: $3.75BQ4 2023: $4.05BQ1 2024: $4.89BQ2 2024: $6.39BQ3 2024: $7.15BQ4 2024: $8.57BQ1 2025: $5.67BQ2 2025: $6.30BQ3 2025: $4.62BQ4 2025: $6.44BQ1 2026: $6.25BQ2 2026: $8.44B
Institutions holding GKOS and their total value by quarter
QuarterHoldersValue
Q2 2026368$8.44B
Q1 2026338$6.25B
Q4 2025334$6.44B
Q3 2025317$4.62B
Q2 2025299$6.30B
Q1 2025318$5.67B
Q4 2024323$8.57B
Q3 2024315$7.15B
Q2 2024282$6.39B
Q1 2024254$4.89B
Q4 2023246$4.05B
Q3 2023233$3.75B
Q2 2023220$3.45B
Q1 2023203$2.37B
Q4 2022215$2.03B
Q3 2022222$2.36B
Q2 2022199$2.01B
Q1 2022211$2.50B
Q4 2021208$1.94B
Q3 2021206$2.13B
Q2 2021219$4.10B
Q1 2021217$4.13B

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding GLAUKOS Corp; share changes are against Q3 2023.

Institutions holding GKOS in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.7,894,315$627.5M0.02%−5,546−0.1%Reduced
FMR LLC5,819,110$462.6M0.04%+2,336,733+67.1%Added
Vanguard Group Inc5,236,738$416.3M0.01%−3,279−0.1%Reduced
Brown Capital Management LLC2,697,794$214.4M3.22%+89,420+3.4%Added
State Street Corp1,816,911$144.4M0.01%+51,104+2.9%Added
Fred Alger Management, LLC1,645,081$130.8M0.71%−135,609−7.6%Reduced
Janus Henderson Group PLC1,616,534$128.5M0.08%+1,357+0.1%Added
Invesco Ltd.1,572,615$125.0M0.03%+122,582+8.5%Added
Wellington Management Group LLP1,340,500$106.6M0.02%−715,921−34.8%Reduced
Artisan Partners Limited Partnership1,222,916$97.2M0.15%−121,665−9.0%Reduced
Ameriprise Financial Inc1,136,685$90.4M0.03%+280,524+32.8%Added
Millennium Management LLC1,023,333$81.3M0.08%−68,695−6.3%Reduced
Geode Capital Management, LLC1,007,988$80.1M0.01%+56,741+6.0%Added
Dimensional Fund Advisors LP923,526$73.4M0.02%+31,213+3.5%Added
Primecap Management Co790,035$62.8M0.05%+151,415+23.7%Added
Morgan Stanley662,256$52.6M0.00%−68,014−9.3%Reduced
Driehaus Capital Management LLC588,853$46.8M0.56%+99,288+20.3%Added
Capital World Investors550,322$43.7M0.01%00.0%Unchanged
Riverbridge Partners LLC548,136$43.6M0.54%−10,351−1.9%Reduced
Northern Trust Corp542,708$43.1M0.01%−9,609−1.7%Reduced
New York State Common Retirement Fund513,029$40.8M0.06%+1,867+0.4%Added
Lord, Abbett & Co. LLC482,821$38.4M0.13%−259,126−34.9%Reduced
Loomis Sayles & Co L P436,257$34.7M0.05%+436,257New
American Century Companies Inc424,188$33.7M0.02%−252,659−37.3%Reduced
Bank of New York Mellon Corp410,618$32.6M0.01%−16,558−3.9%Reduced
Charles Schwab Investment Management Inc392,240$31.2M0.01%+5,450+1.4%Added
Bank of America Corp371,354$29.5M0.00%−19,332−4.9%Reduced
Nuveen Asset Management, LLC370,649$29.5M0.01%+9,871+2.7%Added
Norges Bank362,395$28.8M0.01%+17,954+5.2%Added
Price T Rowe Associates Inc313,924$25.0M0.00%+287,736+1,098.7%Added
Principal Financial Group Inc297,469$23.6M0.02%−101,103−25.4%Reduced
D. E. Shaw & Co., Inc.274,232$21.8M0.03%+221,131+416.4%Added
Royal Bank of Canada252,368$20.1M0.00%+17,141+7.3%Added
Iron Triangle Partners LP244,606$19.4M2.52%−185,394−43.1%Reduced
Braidwell LP242,760$19.3M0.71%−453,032−65.1%Reduced
Nomura Holdings Inc232,034$18.4M0.17%+7,146+3.2%Added
Man Group plc211,746$16.8M0.05%+211,746New
Adage Capital Partners GP, L.L.C.200,000$15.9M0.03%−250,000−55.6%Reduced
C WorldWide Group Holding A/S197,212$15.7M0.21%00.0%Unchanged
Cubist Systematic Strategies, LLC189,520$15.1M0.19%+189,520New
Renaissance Technologies LLC165,692$13.2M0.02%+122,200+281.0%Added
Voloridge Investment Management, LLC165,393$13.1M0.05%+40,563+32.5%Added
Money Concepts Capital Corp163,969$13.0M1.21%+3,875+2.4%Added
Barclays PLC163,898$13.0M0.01%+117,859+256.0%Added
Keybank National Association142,442$11.3M0.05%+154+0.1%Added
Rhumbline Advisers138,063$11.0M0.01%−3,264−2.3%Reduced
Legal & General Group Plc134,365$10.7M0.00%−1,189−0.9%Reduced
Goldman Sachs Group Inc126,642$10.1M0.00%+18,639+17.3%Added
Atika Capital Management LLC124,968$9.93M1.41%−90,232−41.9%Reduced
JPMorgan Chase & Co123,812$9.84M0.00%+19,641+18.9%Added
Rhenman & Partners Asset Management AB120,000$9.54M0.95%+47,000+64.4%Added
Citadel Advisors LLC118,961$9.46M0.01%−246,679−67.5%Reduced
Jane Street Group, LLC112,877$8.97M0.01%+104,025+1,175.2%Added
Public Sector Pension Investment Board101,102$8.04M0.06%+40,971+68.1%Added
Peregrine Capital Management LLC99,091$7.88M0.24%−17,690−15.1%Reduced
Connor, Clark & Lunn Investment Management Ltd.97,799$7.77M0.04%+22,018+29.1%Added
BNP Paribas Arbitrage, SA93,034$7.40M0.01%+63,403+214.0%Added
Swiss National Bank91,000$7.23M0.01%−9,600−9.5%Reduced
Segall Bryant & Hamill, LLC88,798$7.06M0.14%+88,798New
Gilder Gagnon Howe & Co LLC87,461$6.95M0.10%+17,773+25.5%Added
Qube Research & Technologies Ltd86,533$6.88M0.02%+86,533New
Credit Suisse AG85,367$6.79M0.01%+9,642+12.7%Added
Voya Investment Management LLC80,345$6.39M0.01%−49,433−38.1%Reduced
Envestnet Asset Management Inc79,606$6.33M0.00%−21,996−21.6%Reduced
Two Sigma Investments, LP79,501$6.32M0.02%+79,501New
California Public Employees Retirement System76,804$6.11M0.00%+7,107+10.2%Added
Marshall Wace, LLP73,128$5.81M0.01%+73,128New
Allspring Global Investments Holdings, LLC72,978$5.80M0.01%+71,151+3,894.4%Added
SEI Investments Co70,423$5.60M0.01%−319−0.5%Reduced
Castleark Management LLC67,560$5.37M0.24%−4,760−6.6%Reduced
Simplex Trading, LLC60,734$4.83M0.15%+38,541+173.7%Added
Alliancebernstein L.P.59,999$4.77M0.00%−90−0.1%Reduced
UBS Asset Management Americas Inc59,702$4.75M0.00%+2,645+4.6%Added
Neuberger Berman Group LLC59,218$4.71M0.00%+13,469+29.4%Added
Macquarie Group Ltd58,791$4.67M0.01%−55,421−48.5%Reduced
Allianz Asset Management GmbH56,043$4.45M0.01%+1,100+2.0%Added
Prudential Financial Inc55,658$4.42M0.01%−2,885−4.9%Reduced
Great West Life Assurance Co52,324$4.15M0.01%−1,018−1.9%Reduced
First Trust Advisors LP51,219$4.07M0.00%−6,821−11.8%Reduced
Taylor Frigon Capital Management LLC49,314$3.92M1.97%−2,253−4.4%Reduced
California State Teachers Retirement System48,980$3.89M0.01%−1,864−3.7%Reduced
New York State Teachers Retirement System48,343$3.84M0.01%00.0%Unchanged
Jump Financial, LLC47,589$3.78M0.12%+39,829+513.3%Added
Blair William & Co47,127$3.75M0.01%−9,485−16.8%Reduced
EAM Investors, LLC46,328$3.68M0.66%+21,183+84.2%Added
Bridgewater Associates, LP43,932$3.49M0.02%+23,830+118.5%Added
Thrivent Financial for Lutherans43,413$3.45M0.01%−1,092−2.5%Reduced
Granite Investment Partners, LLC43,341$3.45M0.13%−8,210−15.9%Reduced
Texas Permanent School Fund42,087$3.35M0.03%+770+1.9%Added
State of New Jersey Common Pension Fund D41,883$3.33M0.01%+8,884+26.9%Added
Manufacturers Life Insurance Company, The41,712$3.32M0.00%+16,875+67.9%Added
Natixis Advisors, L.P.38,920$3.09M0.01%+4,941+14.5%Added
TD Asset Management Inc38,448$3.06M0.00%+38,448New
UBS Group AG37,115$2.95M0.00%+30,144+432.4%Added
Quantbot Technologies LP35,163$2.80M0.16%+35,163New
Caption Management, LLC32,068$2.55M0.28%−5,923−15.6%Reduced
Healthcare of Ontario Pension Plan Trust Fund32,000$2.54M0.01%+32,000New
PEAK6 Investments LLC31,059$2.47M0.11%+31,059New
Polar Asset Management Partners Inc.31,036$2.47M0.07%−255,072−89.2%Reduced
State of Wisconsin Investment Board30,283$2.41M0.01%+25,152+490.2%Added