Glaukos
GKOS
315 hedge funds and large institutions have $4.56B invested in Glaukos in 2025 Q3 according to their latest regulatory filings, with 63 funds opening new positions, 104 increasing their positions, 116 reducing their positions, and 42 closing their positions.
50% more first-time investments, than exits
New positions opened: 63 | Existing positions closed: 42
6% more funds holding
Funds holding: 297 → 315 (+18)
9.31% less ownership
Funds ownership: 106.82% → 97.52% (-9.3%)
10% less repeat investments, than reductions
Existing positions increased: 104 | Existing positions reduced: 116
28% less capital invested
Capital invested by funds: $6.3B → $4.56B (-$1.74B)
59% less call options, than puts
Call options by funds: $14.7M | Put options by funds: $35.4M
75% less funds holding in top 10
Funds holding in top 10: 4 → 1 (-3)
Top Buyers
| 1 |
Millennium Management
New York
|
+$83.9M |
| 2 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
+$48.3M |
| 3 |
AllianceBernstein
Nashville,
Tennessee
|
+$44.2M |
| 4 |
Primecap Management
Pasadena,
California
|
+$39.1M |
| 5 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$36.3M |
Top Sellers
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$571M |
| 2 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$51.7M |
| 3 |
Holocene Advisors
New York
|
-$45.8M |
| 4 |
Invesco
Atlanta,
Georgia
|
-$35.8M |
| 5 |
BCM
Brown Capital Management
Baltimore,
Maryland
|
-$34.6M |
GKOS Hedge Fund Activity: Q3 2025 in Review
315 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Glaukos (GKOS) for Q3 2025, worth a combined $4.56B — down 28% from $6.3B a quarter earlier.
Buyers outnumbered sellers: 63 funds opened new GKOS positions and 42 closed out — a net gain of 21 holders — while 104 added to existing stakes and 116 trimmed.
The largest buyer was Millennium Management, opening a new position worth an estimated $83.9M. The largest seller was Fidelity Investments, cutting an estimated $571M.
- 315 institutional investors held Glaukos (GKOS) as of Q3 2025, up from 297 in Q2 2025.
- Funds reported $4.56B of Glaukos stock for Q3 2025, down 28% quarter-over-quarter.
- 63 funds opened new Glaukos positions in Q3 2025 and 42 closed out, a net change of +21 holders.
- The largest Glaukos buyer in Q3 2025 was Millennium Management, an estimated $83.9M added.
- The largest Glaukos seller in Q3 2025 was Fidelity Investments, an estimated $571M sold.
Based on aggregated 13F filings for Q3 2025.