GLAUKOS Corp - COM (GKOS) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2015 to Q4 2025

Type / Class
Equity / COM
Symbol
GKOS on NYSE
Shares outstanding
57,430,748
Price per share
$112.91
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
37,955,132
Total reported value
$4,284,594,368
% of total 13F portfolios
0%
Share change
+718,455
Value change
+$165,973,144
Number of holders
246
Price from insider filings
$112.91
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of GLAUKOS Corp - COM (GKOS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 14% $765,685,922 8,160,353 BlackRock, Inc. 31 Mar 2025
PRIMECAP MANAGEMENT CO/CA/ 5.9% $381,288,940 3,376,928 PRIMECAP MANAGEMENT CO/CA/ 31 Dec 2025
FMR LLC 4.5% -59% $262,367,116 -$360,259,421 2,561,428 -58% FMR LLC 31 Jul 2025
Burns Thomas William 4.4% $239,613,202 2,553,695 Thomas W. Burns 31 Dec 2024
WELLINGTON MANAGEMENT GROUP LLP 0.8% -82% $54,967,298 -$311,358,358 486,824 -85% Wellington Management Group LLP 31 Dec 2025

As of 31 Dec 2025, 246 institutional investors reported holding 37,955,132 shares of GLAUKOS Corp - COM (GKOS). This represents 66% of the company’s total 57,430,748 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of GLAUKOS Corp - COM (GKOS) together control 58% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 16% 9,164,538 +5.9% 0.02% $1,034,767,984
VANGUARD GROUP INC 10% 6,020,492 -0.43% 0.01% $679,773,752
PRIMECAP MANAGEMENT CO/CA/ 5.9% 3,376,928 +50% 0.29% $381,288,942
STATE STREET CORP 3.7% 2,122,402 +0.86% 0.01% $239,640,410
GOLDMAN SACHS GROUP INC 2.4% 1,350,425 +209% 0.02% $152,476,487
GEODE CAPITAL MANAGEMENT, LLC 2.3% 1,317,648 +0.12% 0.01% $148,799,552
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 1.9% 1,106,918 +1.2% 0.35% $124,982,111
UBS Group AG 1.5% 873,942 +316% 0.02% $98,676,791
Capital World Investors 1.5% 850,893 0% 0.01% $96,074,329
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.2% 714,026 +1.7% 0.01% $80,620,676
MORGAN STANLEY 1.2% 670,778 +56% 0% $75,737,821
JPMORGAN CHASE & CO 0.97% 556,479 -17% 0% $62,832,110
NORGES BANK 0.93% 536,143 0.01% $60,535,906
RIVERBRIDGE PARTNERS LLC 0.93% 535,169 -6.1% 1.1% $60,425,960
Capital International Investors 0.89% 511,510 0% 0.01% $57,754,594
AustralianSuper Pty Ltd 0.78% 449,846 0% 0.24% $50,792,112
LOOMIS SAYLES & CO L P 0.78% 447,805 +0.08% 0.06% $50,561,663
Nuveen, LLC 0.71% 406,046 +151% 0.01% $45,846,654
Bank of New York Mellon Corp 0.62% 355,840 -6.7% 0.01% $40,177,936
Allspring Global Investments Holdings, LLC 0.62% 355,279 +33% 0.06% $39,336,491
Champlain Investment Partners, LLC 0.58% 333,264 -7% 0.38% $37,628,838
EVENTIDE ASSET MANAGEMENT, LLC 0.5% 289,275 0% 0.51% $32,662,040
Sofinnova Investments, Inc. 0.5% 288,128 -7.9% 1.4% $32,532,532
PRINCIPAL FINANCIAL GROUP INC 0.48% 274,565 -0.95% 0.02% $31,001,134
Rhenman & Partners Asset Management AB 0.37% 210,000 -8.7% 2.2% $23,711,100

Institutional Holders of GLAUKOS Corp - COM (GKOS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 37,955,132 $4,284,594,368 +$165,973,144 $112.91 246
2025 Q3 55,921,410 $4,561,721,472 -$456,444,413 $81.55 313
2025 Q2 61,056,629 $6,306,184,856 +$430,126,517 $103.29 297
2025 Q1 56,920,710 $5,602,550,629 -$131,202,348 $98.42 313
2024 Q4 57,136,161 $8,567,896,672 +$336,126,676 $149.94 320
2024 Q3 54,888,174 $7,151,261,658 +$54,382,295 $130.28 313
2024 Q2 54,042,831 $6,395,837,794 +$282,843,807 $118.35 282
2024 Q1 51,842,920 $4,888,448,545 +$105,452,984 $94.29 252
2023 Q4 50,930,304 $4,048,545,236 +$90,675,813 $79.49 245
2023 Q3 49,799,223 $3,747,316,168 +$97,607,908 $75.25 231
2023 Q2 48,437,046 $3,449,116,516 +$95,457,907 $71.21 217
2023 Q1 47,342,474 $2,371,756,462 +$44,473,822 $50.10 200
2022 Q4 46,564,095 $2,034,031,934 +$16,170,892 $43.68 211
2022 Q3 44,438,207 $2,366,244,684 +$21,899,626 $53.24 219
2022 Q2 44,147,155 $2,006,060,592 +$48,735,644 $45.42 191
2022 Q1 43,205,720 $2,498,715,661 -$11,042,581 $57.82 204
2021 Q4 43,543,281 $1,935,700,781 -$31,171,187 $44.44 204
2021 Q3 44,184,518 $2,128,367,593 -$260,417,707 $48.17 201
2021 Q2 48,339,669 $4,100,514,324 +$31,234,246 $84.83 214
2021 Q1 49,205,858 $4,130,409,129 +$57,694,335 $83.93 215
2020 Q4 48,537,899 $3,653,566,909 -$82,853,803 $75.26 202
2020 Q3 50,418,256 $2,497,765,020 +$157,363,543 $49.52 174
2020 Q2 47,326,259 $1,818,308,189 +$97,458,392 $38.42 174
2020 Q1 44,993,563 $1,388,618,776 -$62,101,410 $30.86 157
2019 Q4 44,170,808 $2,405,943,700 +$233,256,634 $54.47 155
2019 Q3 39,754,543 $2,485,030,286 +$240,694,248 $62.51 145
2019 Q2 35,736,808 $2,694,571,800 +$53,782,513 $75.40 174
2019 Q1 35,209,552 $2,759,369,632 -$139,371,579 $78.37 170
2018 Q4 37,017,712 $2,079,279,996 +$99,959,161 $56.17 144
2018 Q3 35,101,624 $2,277,002,880 -$88,486,892 $64.90 155
2018 Q2 36,724,707 $1,492,484,055 -$14,810,203 $40.64 128
2018 Q1 37,508,465 $1,156,377,946 +$88,182,767 $30.83 127
2017 Q4 34,899,118 $895,174,831 -$11,326,840 $25.65 133
2017 Q3 34,296,355 $1,131,795,410 -$27,474,864 $33.00 122
2017 Q2 34,573,578 $1,433,664,346 +$237,854,914 $41.47 147
2017 Q1 30,393,559 $1,558,980,687 +$128,778,979 $51.30 153
2016 Q4 29,540,619 $1,013,285,895 +$91,448,657 $34.30 134
2016 Q3 25,895,088 $977,295,404 +$93,815,832 $37.74 138
2016 Q2 23,748,606 $692,110,607 +$95,301,498 $29.16 110
2016 Q1 20,558,953 $346,612,353 +$8,926,494 $16.86 73
2015 Q4 19,620,129 $484,568,916 +$3,579,701 $24.69 62
2015 Q3 16,813,468 $406,716,027 +$106,456,029 $24.19 64
2015 Q2 12,301,918 $356,509,000 +$356,509,000 $28.98 50