13FPulse
GK

GKOS GLAUKOS CORP

2026Q2 · CUSIP 377322102 · Sector: Healthcare & Biotech

Piling in

Net holder growth ranks near the top of the market

Funds that own it
362
Institutions that reported holding it to the SEC
Net increase in holders
+28
Last quarter 334 → now 362
How unusual is that
Top 20%
Stronger buying than 88% of US stocks
What the filings say, in one paragraph

362 funds held GKOS at the end of 2026Q2, up 28 from the quarter before. That is stronger buying than 88.4% of US stocks — among the most piled-into names this quarter. On the business itself, revenue over the last 12 months was $613M(YoY +41.5%), return on equity is -27.6%. GKOS has had 14 buying rushes in its history, and the price moved +20.5% on average over the six months after (that is the raw price move, not how much it beat the market by). It sits in the Healthcare & Biotech sector.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2015Q3: holders=63 2015Q4: holders=62 2016Q1: holders=73 2016Q2: holders=111 2016Q3: holders=139 2016Q4: holders=135 2017Q1: holders=154 2017Q2: holders=151 2017Q3: holders=123 2017Q4: holders=135 2018Q1: holders=130 2018Q2: holders=136 2018Q3: holders=155 2018Q4: holders=144 2019Q1: holders=172 2019Q2: holders=178 2019Q3: holders=145 2019Q4: holders=158 2020Q1: holders=165 2020Q2: holders=180 2020Q3: holders=177 2020Q4: holders=206 2021Q1: holders=216 2021Q2: holders=219 2021Q3: holders=206 2021Q4: holders=207 2022Q1: holders=212 2022Q2: holders=197 2022Q3: holders=221 2022Q4: holders=216 2023Q1: holders=202 2023Q2: holders=219 2023Q3: holders=232 2023Q4: holders=247 2024Q1: holders=252 2024Q2: holders=283 2024Q3: holders=314 2024Q4: holders=323 2025Q1: holders=315 2025Q2: holders=296 2025Q3: holders=313 2025Q4: holders=333 2026Q1: holders=334 2026Q2: holders=362 -38 -19 +0 +19 +38 55218381 15Q316Q418Q119Q220Q321Q423Q124Q225Q326Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 14 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2026Q2 Top 20%
2024Q3 Top 10% -8.1% -29.0%
2024Q2 Top 10% +8.8% +26.0%
2023Q3 Top 20% +42.3% +68.8%
2023Q2 Top 20% -11.0% +29.6%
2022Q3 Top 5% +2.9% +17.1%
2020Q1 Top 20% +17.4% +86.3%
2019Q1 Top 10% -6.4% -6.7%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
189
Change in large funds
+16
Total value they hold
$8.4B
Funds buying for the first time
71
Funds that sold out entirely
43
Price change that quarter
+24.3%
Funds holding puts (bearish)
6
Funds holding calls (bullish)
6

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
EPS (TTM)
$-3.27
EPS YoY
Revenue (TTM)
$0.6B
Revenue YoY
+41.5%
Net margin
-30.7%
ROE
-27.6%
Debt ratio
25.9%
FCF (TTM)
-$12M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2022-09-30: EPS -0.58 2022-12-31: EPS -0.66 2023-03-31: EPS -0.72 2023-06-30: EPS -0.68 2023-09-30: EPS -0.63 2023-12-31: EPS -0.75 2024-03-31: EPS -0.82 2024-06-30: EPS -1.00 2024-09-30: EPS -0.39 2024-12-31: EPS -0.56 2025-03-31: EPS -0.32 2025-06-30: EPS -0.34 2025-09-30: EPS -0.28 2025-12-31: EPS -2.34 2026-03-31: EPS -0.34 2026-06-30: EPS -0.31 0M 93M 186M $M -2.57 -1.29 0.00 2016201720182019202020212022202320242025202606/26 Revenue EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

Quarterly free cash flow
-38M-14M10M 20162017201820192020202120222023202420252026
Latest quarter $-16M (2026-03-31)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-06-30 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.