Glaukos Corporation
DE ˙ DB ˙ US3773221029
102,00 € ↑5,50 (5,70%)
2026-06-05
DEL PRIS
SecurityDE:6GJ / Glaukos Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership34,099 shares
Latest Disclosed Value $ 3,671,097
Marshall Wace, Llp reports 370.72% increase in ownership of 6GJ / Glaukos Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 34,099 shares of Glaukos Corporation (DE:6GJ) valued at $3,103,009 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,244 shares of Glaukos Corporation. This represents a change in shares of 370.72% during the quarter. The current value of the position is $3,478,098 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F GLAUKOS COMMON STOCK 377322102 34,099 26,855 370.72 3,671 349.33 0.0037
2026-02-13 2025-12-31 13F GLAUKOS COMMON STOCK 377322102 7,244 -317,283 -97.77 818 -96.91 0.0007
2025-11-13 2025-09-30 13F GLAUKOS COMMON STOCK 377322102 324,527 93,842 40.68 26,465 11.07 0.0268
2025-08-13 2025-06-30 13F GLAUKOS COMMON STOCK 377322102 230,685 -114,086 -33.09 23,827 -29.78 0.0268
2025-05-15 2025-03-31 13F GLAUKOS COMMON STOCK 377322102 344,771 344,771 33,932 0.0431
2025-02-13 2024-12-31 13F GLAUKOS COMMON STOCK 377322102 0 -128,803 -100.00 0 -100.00
2024-11-14 2024-09-30 13F GLAUKOS COMMON STOCK 377322102 128,803 128,803 16,780 0.0204
2024-08-14 2024-06-30 13F GLAUKOS COMMON STOCK 377322102 0 -3,200 -100.00 0 -100.00
2024-05-15 2024-03-31 13F GLAUKOS COMMON STOCK 377322102 3,200 -69,928 -95.62 302 -94.82 0.0005
2024-02-14 2023-12-31 13F GLAUKOS COMMON STOCK 377322102 73,128 73,128 5,813 0.0098
2023-08-14 2023-06-30 13F GLAUKOS COMMON STOCK 377322102 0 -6,637 -100.00 0 -100.00
2023-05-15 2023-03-31 13F GLAUKOS COMMON STOCK 377322102 6,637 6,637 333 0.0007
2023-02-14 2022-12-31 13F GLAUKOS COMMON STOCK 377322102 0 -4,800 -100.00 0 -100.00
2022-11-14 2022-09-30 13F GLAUKOS COMMON STOCK 377322102 4,800 -3,144 -39.58 256 -29.09 0.0006
2022-08-15 2022-06-30 13F GLAUKOS COMMON STOCK 377322102 7,944 -1,820 -18.64 361 -36.11 0.0007
2022-05-16 2022-03-31 13F GLAUKOS COMMON STOCK 377322102 9,764 -415,771 -97.71 565 -97.01 0.0011
2022-02-14 2021-12-31 13F GLAUKOS COMMON STOCK 377322102 425,535 -247,228 -36.75 18,911 -41.65 0.0349
2021-11-15 2021-09-30 13F GLAUKOS COMMON STOCK 377322102 672,763 668,934 17,470.20 32,408 9,871.69 0.1346
2021-08-13 2021-06-30 13F GLAUKOS COMMON STOCK 377322102 3,829 -4,488 -53.96 325 -53.44 0.0016
2021-05-17 2021-03-31 13F GLAUKOS COMMON STOCK 377322102 8,317 -4,950 -37.31 698 -30.13 0.0032
2021-02-16 2020-12-31 13F GLAUKOS COMMON STOCK 377322102 13,267 13,267 59.52 999 43.12 0.0054
2017-05-12 2017-03-31 13F GLAUKOS COMMON STOCK 377322102 0 -39,794 -100.00 0 -100.00
2017-02-10 2016-12-31 13F GLAUKOS COMMON STOCK 377322102 39,794 39,794 1,365 0.0090
2016-11-10 2016-09-30 13F GLAUKOS COMMON STOCK 377322102 0 -139,766 -100.00 0 -100.00
2016-08-12 2016-06-30 13F GLAUKOS COMMON STOCK 377322102 139,766 139,766 4,076 0.0343
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.