HoldingsChannel.com
| Holder | Amount | Position Size ($ in 1000's) | As of |
|---|---|---|---|
 Brown Capital Management LLC | 4,565,966 | $248,708 | 12/31/2019 |
| GKOS | 4,565,966 | $248,708 | 12/31/2019 |
| Vanguard Group Inc. | 3,743,708 | $203,920 | 12/31/2019 |
| GKOS | 3,743,708 | $203,920 | 12/31/2019 |
| Baillie Gifford & Co. | 3,577,069 | $194,844 | 12/31/2019 |
| GKOS | 3,577,069 | $194,844 | 12/31/2019 |
| BlackRock Inc. | 2,919,762 | $159,041 | 12/31/2019 |
| GKOS | 2,919,762 | $159,041 | 12/31/2019 |
| Fred Alger Management LLC | 2,235,423 | $121,763 | 12/31/2019 |
| GKOS | 2,235,423 | $121,763 | 12/31/2019 |
| William Blair Investment Management LLC | 1,976,525 | $107,661 | 12/31/2019 |
| GKOS | 1,976,525 | $107,661 | 12/31/2019 |
| Janus Henderson Group PLC | 1,725,973 | $94,014 | 12/31/2019 |
| GKOS | 1,725,973 | $94,014 | 12/31/2019 |
| Orbimed Advisors LLC | 1,547,646 | $84,300 | 12/31/2019 |
| GKOS | 1,547,646 | $84,300 | 12/31/2019 |
| Gilder Gagnon Howe & Co. LLC | 1,420,280 | $77,363 | 12/31/2019 |
| GKOS | 1,420,280 | $77,363 | 12/31/2019 |
| Artisan Partners Limited Partnership | 1,205,509 | $65,664 | 12/31/2019 |
| GKOS | 1,205,509 | $65,664 | 12/31/2019 |
| Capital World Investors | 1,150,322 | $62,658 | 12/31/2019 |
| GKOS | 1,150,322 | $62,658 | 12/31/2019 |
| Waddell & Reed Financial Inc. | 1,087,144 | $59,217 | 12/31/2019 |
| GKOS | 1,087,144 | $59,217 | 12/31/2019 |
| FMR LLC | 1,081,013 | $58,883 | 12/31/2019 |
| GKOS | 1,081,013 | $58,883 | 12/31/2019 |
| Interwest Venture Management Co. | 1,013,364 | $55,198 | 12/31/2019 |
| GKOS | 1,013,364 | $55,198 | 12/31/2019 |
| State Street Corp | 966,235 | $52,631 | 12/31/2019 |
| GKOS | 966,235 | $52,631 | 12/31/2019 |
| New York State Common Retirement Fund | 827,664 | $45,083 | 12/31/2019 |
| GKOS | 827,664 | $45,083 | 12/31/2019 |
| Clearbridge Investments LLC | 805,377 | $43,837 | 12/31/2019 |
| GKOS | 805,377 | $43,837 | 12/31/2019 |
| Federated Hermes Inc. | 683,470 | $37,229 | 12/31/2019 |
| GKOS | 683,470 | $37,229 | 12/31/2019 |
| Invesco Ltd. | 592,839 | $32,292 | 12/31/2019 |
| GKOS | 592,839 | $32,292 | 12/31/2019 |
| Jennison Associates LLC | 560,144 | $30,511 | 12/31/2019 |
| GKOS | 560,144 | $30,511 | 12/31/2019 |
| Northern Trust Corp | 533,435 | $29,057 | 12/31/2019 |
| GKOS | 533,435 | $29,057 | 12/31/2019 |
| Morgan Stanley | 522,089 | $28,437 | 12/31/2019 |
| GKOS | 522,089 | $28,437 | 12/31/2019 |
 Millennium Management LLC | $28,055 | 12/31/2019 | |
| GKOS | 465,052 | $25,331 | 12/31/2019 |
| Call | 50,000 | $2,724 | 12/31/2019 |
| Geode Capital Management LLC | 501,942 | $27,340 | 12/31/2019 |
| GKOS | 501,942 | $27,340 | 12/31/2019 |
| Sandhill Capital Partners LLC | 458,461 | $24,972 | 12/31/2019 |
| GKOS | 458,461 | $24,972 | 12/31/2019 |
| Peregrine Capital Management LLC | 416,416 | $22,682 | 12/31/2019 |
| GKOS | 416,416 | $22,682 | 12/31/2019 |
| Bellevue Group AG | 402,148 | $21,905 | 12/31/2019 |
| GKOS | 402,148 | $21,905 | 12/31/2019 |
| Amundi Pioneer Asset Management Inc. | 344,511 | $18,765 | 12/31/2019 |
| GKOS | 344,511 | $18,765 | 12/31/2019 |
| Wells Fargo & Company MN | 339,943 | $18,518 | 12/31/2019 |
| GKOS | 339,943 | $18,518 | 12/31/2019 |
| Primecap Management Co. CA | 318,200 | $17,332 | 12/31/2019 |
| GKOS | 318,200 | $17,332 | 12/31/2019 |
| Lord Abbett & CO. LLC | 305,549 | $16,644 | 12/31/2019 |
| GKOS | 305,549 | $16,644 | 12/31/2019 |
| Goldman Sachs Group Inc. | 303,718 | $16,543 | 12/31/2019 |
| GKOS | 303,718 | $16,543 | 12/31/2019 |
| Mitsubishi UFJ Trust & Banking Corp | 279,040 | $15,199 | 12/31/2019 |
| GKOS | 279,040 | $15,199 | 12/31/2019 |
| Ameriprise Financial Inc. | 264,853 | $14,425 | 12/31/2019 |
| GKOS | 264,853 | $14,425 | 12/31/2019 |
| Bank of America Corp DE | 257,048 | $14,001 | 12/31/2019 |
| GKOS | 257,048 | $14,001 | 12/31/2019 |
| Charles Schwab Investment Management Inc. | 240,869 | $13,121 | 12/31/2019 |
| GKOS | 240,869 | $13,121 | 12/31/2019 |
| Rhenman & Partners Asset Management AB | 235,000 | $12,800 | 12/31/2019 |
| GKOS | 235,000 | $12,800 | 12/31/2019 |
| Granite Investment Partners LLC | 221,507 | $12,065 | 12/31/2019 |
| GKOS | 221,507 | $12,065 | 12/31/2019 |
| Wasatch Advisors Inc. | 203,755 | $11,099 | 12/31/2019 |
| GKOS | 203,755 | $11,099 | 12/31/2019 |
| Nuveen Asset Management LLC | 192,543 | $10,487 | 12/31/2019 |
| GKOS | 192,543 | $10,487 | 12/31/2019 |
| State of Wisconsin Investment Board | 192,400 | $10,480 | 12/31/2019 |
| GKOS | 192,400 | $10,480 | 12/31/2019 |
| Renaissance Technologies LLC | 190,292 | $10,365 | 12/31/2019 |
| GKOS | 190,292 | $10,365 | 12/31/2019 |
| Bank of New York Mellon Corp | 181,342 | $9,877 | 12/31/2019 |
| GKOS | 181,342 | $9,877 | 12/31/2019 |
| C WorldWide Group Holding A S | 167,212 | $9,108 | 12/31/2019 |
| GKOS | 167,212 | $9,108 | 12/31/2019 |
| Two Sigma Investments LP | 117,631 | $6,407 | 12/31/2019 |
| GKOS | 117,631 | $6,407 | 12/31/2019 |
| Deutsche Bank AG | 97,869 | $5,330 | 12/31/2019 |
| GKOS | 97,869 | $5,330 | 12/31/2019 |
| Citadel Advisors LLC | $5,247 | 12/31/2019 | |
| GKOS | 97,613 | $5,317 | 12/31/2019 |
| Put | 7,900 | $430 | 12/31/2019 |
| Call | 6,600 | $360 | 12/31/2019 |
| JPMorgan Chase & Co. | 91,863 | $5,004 | 12/31/2019 |
| GKOS | 91,863 | $5,004 | 12/31/2019 |
| Blair William & Co. IL | 85,134 | $4,637 | 12/31/2019 |
| GKOS | 85,134 | $4,637 | 12/31/2019 |
| Engineers Gate Manager LP | 79,612 | $4,336 | 12/31/2019 |
| GKOS | 79,612 | $4,336 | 12/31/2019 |
| California Public Employees Retirement System | 79,300 | $4,319 | 12/31/2019 |
| GKOS | 79,300 | $4,319 | 12/31/2019 |
| Swiss National Bank | 74,600 | $4,063 | 12/31/2019 |
| GKOS | 74,600 | $4,063 | 12/31/2019 |
| BNP Paribas Arbitrage SA | 70,046 | $3,815 | 12/31/2019 |
| GKOS | 70,046 | $3,815 | 12/31/2019 |
| Silvercrest Asset Management Group LLC | 68,617 | $3,738 | 12/31/2019 |
| GKOS | 68,617 | $3,738 | 12/31/2019 |
| Pier Capital LLC | 61,305 | $3,339 | 12/31/2019 |
| GKOS | 61,305 | $3,339 | 12/31/2019 |
| UBS Group AG | 60,934 | $3,319 | 12/31/2019 |
| GKOS | 60,934 | $3,319 | 12/31/2019 |
| California State Teachers Retirement System | 59,424 | $3,237 | 12/31/2019 |
| GKOS | 59,424 | $3,237 | 12/31/2019 |
| Bank of Montreal Can | 56,679 | $3,087 | 12/31/2019 |
| GKOS | 56,679 | $3,087 | 12/31/2019 |
| Rhumbline Advisers | 55,174 | $3,005 | 12/31/2019 |
| GKOS | 55,174 | $3,005 | 12/31/2019 |
| Alliancebernstein L.P. | 46,810 | $2,550 | 12/31/2019 |
| GKOS | 46,810 | $2,550 | 12/31/2019 |
| Taylor Frigon Capital Management LLC | 41,717 | $2,272 | 12/31/2019 |
| GKOS | 41,717 | $2,272 | 12/31/2019 |
| UBS Asset Management Americas Inc. | 41,424 | $2,256 | 12/31/2019 |
| GKOS | 41,424 | $2,256 | 12/31/2019 |
| Macquarie Group Ltd. | 40,921 | $2,229 | 12/31/2019 |
| GKOS | 40,921 | $2,229 | 12/31/2019 |
| Barclays PLC | 38,896 | $2,119 | 12/31/2019 |
| GKOS | 38,896 | $2,119 | 12/31/2019 |
| Tudor Investment Corp ET AL | 37,262 | $2,030 | 12/31/2019 |
| GKOS | 37,262 | $2,030 | 12/31/2019 |
| Credit Suisse AG | 36,818 | $2,006 | 12/31/2019 |
| GKOS | 36,818 | $2,006 | 12/31/2019 |
| Man Group plc | 35,096 | $1,912 | 12/31/2019 |
| GKOS | 35,096 | $1,912 | 12/31/2019 |
| State of New Jersey Common Pension Fund D | 35,052 | $1,909 | 12/31/2019 |
| GKOS | 35,052 | $1,909 | 12/31/2019 |
| Aviva PLC | 29,978 | $1,633 | 12/31/2019 |
| GKOS | 29,978 | $1,633 | 12/31/2019 |
| Susquehanna International Group LLP | $1,602 | 12/31/2019 | |
| Put | 40,600 | $2,211 | 12/31/2019 |
| Call | 35,400 | $1,928 | 12/31/2019 |
| GKOS | 34,603 | $1,885 | 12/31/2019 |
| Voloridge Investment Management LLC | 28,580 | $1,557 | 12/31/2019 |
| GKOS | 28,580 | $1,557 | 12/31/2019 |
| Envestnet Asset Management Inc. | 28,044 | $1,528 | 12/31/2019 |
| GKOS | 28,044 | $1,528 | 12/31/2019 |
| Capital Fund Management S.A. | 28,000 | $1,525 | 12/31/2019 |
| GKOS | 28,000 | $1,525 | 12/31/2019 |
| SG Americas Securities LLC | 26,442 | $1,440 | 12/31/2019 |
| GKOS | 26,442 | $1,440 | 12/31/2019 |
| Legal & General Group Plc | 25,262 | $1,376 | 12/31/2019 |
| GKOS | 25,262 | $1,376 | 12/31/2019 |
| Royce & Associates LP | 25,125 | $1,369 | 12/31/2019 |
| GKOS | 25,125 | $1,369 | 12/31/2019 |
| Truist Financial Corp | 24,598 | $1,339 | 12/31/2019 |
| GKOS | 24,598 | $1,339 | 12/31/2019 |
| American International Group Inc. | 24,362 | $1,327 | 12/31/2019 |
| GKOS | 24,362 | $1,327 | 12/31/2019 |
| The Manufacturers Life Insurance Company | 23,331 | $1,271 | 12/31/2019 |
| GKOS | 23,331 | $1,271 | 12/31/2019 |
| Sei Investments Co. | 22,832 | $1,244 | 12/31/2019 |
| GKOS | 22,832 | $1,244 | 12/31/2019 |
| Parametric Portfolio Associates LLC | 22,407 | $1,221 | 12/31/2019 |
| GKOS | 22,407 | $1,221 | 12/31/2019 |
| Aigen Investment Management LP | 20,605 | $1,122 | 12/31/2019 |
| GKOS | 20,605 | $1,122 | 12/31/2019 |
| Royal Bank of Canada | 19,989 | $1,089 | 12/31/2019 |
| GKOS | 19,989 | $1,089 | 12/31/2019 |
| Voya Investment Management LLC | 19,249 | $1,048 | 12/31/2019 |
| GKOS | 19,249 | $1,048 | 12/31/2019 |
| State Board of Administration of Florida Retirement System | 18,715 | $1,019 | 12/31/2019 |
| GKOS | 18,715 | $1,019 | 12/31/2019 |
| Raymond James & Associates | 17,870 | $973 | 12/31/2019 |
| GKOS | 17,870 | $973 | 12/31/2019 |
| MetLife Investment Management LLC | 16,710 | $910 | 12/31/2019 |
| GKOS | 16,710 | $910 | 12/31/2019 |
| Baird Financial Group Inc. | 16,367 | $892 | 12/31/2019 |
| GKOS | 16,367 | $892 | 12/31/2019 |
| A.R.T. Advisors LLC | 16,290 | $887 | 12/31/2019 |
| GKOS | 16,290 | $887 | 12/31/2019 |
| Price T Rowe Associates Inc. MD | 15,998 | $871 | 12/31/2019 |
| GKOS | 15,998 | $871 | 12/31/2019 |
| BB&T Securities LLC | 13,143 | $828 | 09/30/2019 |
| GKOS | 13,143 | $828 | 09/30/2019 |
| Quantbot Technologies LP | 14,639 | $797 | 12/31/2019 |
| GKOS | 14,639 | $797 | 12/31/2019 |
| Cubist Systematic Strategies LLC | 13,295 | $724 | 12/31/2019 |
| GKOS | 13,295 | $724 | 12/31/2019 |
| Metropolitan Life Insurance Co NY | 12,251 | $667 | 12/31/2019 |
| GKOS | 12,251 | $667 | 12/31/2019 |
| Qube Research & Technologies Ltd | 11,670 | $636 | 12/31/2019 |
| GKOS | 11,670 | $636 | 12/31/2019 |
| Citigroup Inc. | 11,369 | $619 | 12/31/2019 |
| GKOS | 11,369 | $619 | 12/31/2019 |
| Aureus Asset Management LLC | 11,351 | $618 | 12/31/2019 |
| GKOS | 11,351 | $618 | 12/31/2019 |
| Segall Bryant & Hamill LLC | 11,136 | $607 | 12/31/2019 |
| GKOS | 11,136 | $607 | 12/31/2019 |
| Paloma Partners Management Co | 11,013 | $600 | 12/31/2019 |
| GKOS | 11,013 | $600 | 12/31/2019 |
| Suntrust Banks Inc. | 9,451 | $591 | 09/30/2019 |
| GKOS | 9,451 | $591 | 09/30/2019 |
| Leap Investments LP | 10,400 | $566 | 12/31/2019 |
| GKOS | 10,400 | $566 | 12/31/2019 |
| Two Sigma Advisers LP | 10,324 | $562 | 12/31/2019 |
| GKOS | 10,324 | $562 | 12/31/2019 |
| Oppenheimer Asset Management Inc. | 9,712 | $529 | 12/31/2019 |
| GKOS | 9,712 | $529 | 12/31/2019 |
| Weiss Multi Strategy Advisers LLC | 9,000 | $490 | 12/31/2019 |
| GKOS | 9,000 | $490 | 12/31/2019 |
| Victory Capital Management Inc. | 8,498 | $463 | 12/31/2019 |
| GKOS | 8,498 | $463 | 12/31/2019 |
| Oxford Asset Management LLP | 7,851 | $428 | 12/31/2019 |
| GKOS | 7,851 | $428 | 12/31/2019 |
| Amalgamated Bank | 7,269 | $396 | 12/31/2019 |
| GKOS | 7,269 | $396 | 12/31/2019 |
| D. E. Shaw & Co. Inc. | 7,273 | $396 | 12/31/2019 |
| GKOS | 7,273 | $396 | 12/31/2019 |
| Magnetar Financial LLC | 6,877 | $375 | 12/31/2019 |
| GKOS | 6,877 | $375 | 12/31/2019 |
| Advisor Group Inc. | 6,710 | $365 | 12/31/2019 |
| GKOS | 6,710 | $365 | 12/31/2019 |
| NumerixS Investment Technologies Inc | 6,500 | $354 | 12/31/2019 |
| GKOS | 6,500 | $354 | 12/31/2019 |
| Xact Kapitalforvaltning AB | 6,100 | $332 | 12/31/2019 |
| GKOS | 6,100 | $332 | 12/31/2019 |
| Public Employees Retirement Association of Colorado | 5,611 | $306 | 12/31/2019 |
| GKOS | 5,611 | $306 | 12/31/2019 |
| ProShare Advisors LLC | 5,274 | $287 | 12/31/2019 |
| GKOS | 5,274 | $287 | 12/31/2019 |
| Regis Management CO LLC | 5,000 | $272 | 12/31/2019 |
| GKOS | 5,000 | $272 | 12/31/2019 |
| Wrapmanager Inc. | 4,919 | $268 | 12/31/2019 |
| GKOS | 4,919 | $268 | 12/31/2019 |
| ExodusPoint Capital Management LP | 4,868 | $265 | 12/31/2019 |
| GKOS | 4,868 | $265 | 12/31/2019 |
| PDT Partners LLC | 4,805 | $262 | 12/31/2019 |
| GKOS | 4,805 | $262 | 12/31/2019 |
| Gamco Investors INC. ET AL | 4,768 | $260 | 12/31/2019 |
| GKOS | 4,768 | $260 | 12/31/2019 |
| Atria Investments LLC | 4,772 | $260 | 12/31/2019 |
| GKOS | 4,772 | $260 | 12/31/2019 |
| Stone Ridge Asset Management LLC | 4,671 | $254 | 12/31/2019 |
| GKOS | 4,671 | $254 | 12/31/2019 |
| Equitable Trust Co. | 4,500 | $245 | 12/31/2019 |
| GKOS | 4,500 | $245 | 12/31/2019 |
| Ameritas Investment Partners Inc. | 3,390 | $185 | 12/31/2019 |
| GKOS | 3,390 | $185 | 12/31/2019 |
| Russell Investments Group Ltd. | 3,211 | $174 | 12/31/2019 |
| GKOS | 3,211 | $174 | 12/31/2019 |
| Zurcher Kantonalbank Zurich Cantonalbank | 2,825 | $154 | 12/31/2019 |
| GKOS | 2,825 | $154 | 12/31/2019 |
| Evoke Wealth LLC | 2,778 | $151 | 12/31/2019 |
| GKOS | 2,778 | $151 | 12/31/2019 |
| Valeo Financial Advisors LLC | 2,432 | $132 | 12/31/2019 |
| GKOS | 2,432 | $132 | 12/31/2019 |
| Great West Life Assurance Co. Can | 2,412 | $131 | 12/31/2019 |
| GKOS | 2,412 | $131 | 12/31/2019 |
| AdvisorNet Financial Inc | 1,905 | $104 | 12/31/2019 |
| GKOS | 1,905 | $104 | 12/31/2019 |
| Point72 Hong Kong Ltd | 1,615 | $88 | 12/31/2019 |
| GKOS | 1,615 | $88 | 12/31/2019 |
| Exchange Traded Concepts LLC | 1,587 | $86 | 12/31/2019 |
| GKOS | 1,587 | $86 | 12/31/2019 |
| Panagora Asset Management Inc. | 1,504 | $82 | 12/31/2019 |
| GKOS | 1,504 | $82 | 12/31/2019 |
| PEAK6 Investments LLC | $63 | 12/31/2019 | |
| Put | 3,500 | $191 | 12/31/2019 |
| Call | 3,300 | $180 | 12/31/2019 |
| GKOS | 1,352 | $74 | 12/31/2019 |
| Strs Ohio | 600 | $32 | 12/31/2019 |
| GKOS | 600 | $32 | 12/31/2019 |
| Fifth Third Bancorp | 263 | $14 | 12/31/2019 |
| GKOS | 263 | $14 | 12/31/2019 |
| Nisa Investment Advisors LLC | 250 | $14 | 12/31/2019 |
| GKOS | 250 | $14 | 12/31/2019 |
| Ladenburg Thalmann Financial Services Inc. | 259 | $14 | 12/31/2019 |
| GKOS | 259 | $14 | 12/31/2019 |
| Glenmede Trust Co. NA | 244 | $13 | 12/31/2019 |
| GKOS | 244 | $13 | 12/31/2019 |
| Group One Trading L.P. | 200 | $11 | 12/31/2019 |
| GKOS | 200 | $11 | 12/31/2019 |
| Benjamin F. Edwards & Company Inc. | 190 | $10 | 12/31/2019 |
| GKOS | 190 | $10 | 12/31/2019 |
| NEXT Financial Group Inc | 179 | $10 | 12/31/2019 |
| GKOS | 179 | $10 | 12/31/2019 |
| PNC Financial Services Group Inc. | 171 | $9 | 12/31/2019 |
| GKOS | 171 | $9 | 12/31/2019 |
| Virtus Alternative Investment Advisers Inc. | 141 | $8 | 12/31/2019 |
| GKOS | 141 | $8 | 12/31/2019 |
| Prelude Capital Management LLC | 84 | $5 | 12/31/2019 |
| GKOS | 84 | $5 | 12/31/2019 |
| Rockefeller Capital Management L.P. | 100 | $5 | 12/31/2019 |
| GKOS | 100 | $5 | 12/31/2019 |
| Proequities Inc. | $4 | 12/31/2019 | |
| GKOS | 76 | $4 | 12/31/2019 |
| Put | 0 | $0 | 12/31/2019 |
| Call | 0 | $0 | 12/31/2019 |
| Advisory Services Network LLC | 53 | $3 | 12/31/2019 |
| GKOS | 53 | $3 | 12/31/2019 |
| IFP Advisors Inc | 50 | $3 | 12/31/2019 |
| GKOS | 50 | $3 | 12/31/2019 |
| Canada Pension Plan Investment Board | 39 | $2 | 12/31/2019 |
| GKOS | 39 | $2 | 12/31/2019 |
| FinTrust Capital Advisors LLC | 33 | $2 | 12/31/2019 |
| GKOS | 33 | $2 | 12/31/2019 |
| Sowell Financial Services LLC | 16 | $1 | 12/31/2019 |
| GKOS | 16 | $1 | 12/31/2019 |
| Financial Gravity Wealth Inc. | 15 | $1 | 09/30/2019 |
| GKOS | 15 | $1 | 09/30/2019 |
| Huntington National Bank | 1 | $0 | 12/31/2019 |
| GKOS | 1 | $0 | 12/31/2019 |
| Meeder Asset Management Inc. | 9 | $0 | 12/31/2019 |
| GKOS | 9 | $0 | 12/31/2019 |
| Tower Research Capital LLC TRC | 2 | $0 | 12/31/2019 |
| GKOS | 2 | $0 | 12/31/2019 |
| Orion Portfolio Solutions LLC | 9 | $0 | 12/31/2019 |
| GKOS | 9 | $0 | 12/31/2019 |
| Jefferies Group LLC | $-115 | 12/31/2019 | |
| Put | 7,800 | $425 | 12/31/2019 |
| GKOS | 5,695 | $310 | 12/31/2019 |
| Pura Vida Investments LLC | 1,320 | $-772 | 12/31/2019 |
| Put | 1,320 | $772 | 12/31/2019 |
See Summary: Institutional Holders of GKOS
See Details: Top 10 Hedge Funds Holding GKOS
Also See: GKOS Insider Buying
Also See: GKOS Holdings Changes
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