Transaction · 0001920053-26-000028

Navratil Tomas

Navratil Tomas, CDO, reported an open-market or private sale at GLAUKOS Corp involving 234.000000 shares for an estimated $40002.30. Reported holdings after the transaction were 72437.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCDO
GKOSGLAUKOS Corp
Trade date
Sep 16, 2026
Filing date
Sep 18, 2026
View on SEC Insider profile
Estimated value-$40.0kShares × reported price
Shares traded234$170.95 per share
Holdings after72.4kDirect
% of reported position traded0.32%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 72,671 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

GKOS price since this filing

Daily closing prices, with the filing date and available return windows
GKOS · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +13.3%1w ago +9.8%1d ago +4.8%
Returns since7d -5.7%30d +0.6%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001920053-26-000028
Common Stock
Transaction date
Sep 16, 2026
Filed Sep 18, 2026, 09:32 PM · 2d delay
Shares
234 sh
$170.95 per share
Estimated value
-$40.0k
Computed from shares × price
Holdings after
72,437 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Repeat Seller 10b5-1 Detected
Filing-only score

0 points

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

CHIEF DEVELOPMENT OFFICER

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 12, 2026.

  2. F2

    This transaction was executed in multiple trades at prices ranging from $162.87 to $163.47. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

  3. F3

    Includes 38,817 restricted stock units that have not yet vested or been delivered to the Reporting Person.

  4. F4

    This transaction was executed in multiple trades at prices ranging from $164.40 to $165.26. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

  5. F5

    This transaction was executed in multiple trades at prices ranging from $165.55 to $166.22. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

  6. F6

    This transaction was executed in multiple trades at prices ranging from $167.04 to $167.57. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

  7. F7

    This transaction was executed in multiple trades at prices ranging from $168.37 to $168.38. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

  8. F8

    This transaction was executed in multiple trades at prices ranging from $170.76 to $171.10. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

  9. F9

    This transaction was executed in multiple trades at prices ranging from $172.00 to $172.01. The price reported above reflects the weighted average price. The reporting person hereby undertakes to prov…

Original filing · 0001920053-26-000028
Related transactions

0 other transactions

Same SEC filing
Recent company activity

0 recent txs

GKOS