Form 4

Insider buys and sales

Source: Form 4 filings on SEC EDGAR

Type a ticker for one company's Form 4s, or read today's open-market trades at companies with a public float under $300M (All companies is one tap away): buys first, then sales, cluster buys and each insider's record across companies.

Open-market buys, last day0
Cluster buys, last 30 days, all companies15
Open-market sales, last day4
Planned sales (10b5-1), last day0

Cluster buys, last 30 days, all companies

6 of 15 companies whose last cluster buy was in the last 30 days, those with a public float under $2B first.

Trades filed since Nov 3

Notes on each row are as each Form 4 states them, next to SEC Tracker's own records of the company's filings and other insiders' buys. The Stake column is the change in their holding.

TradedCompanyInsiderTradeValueStakeNotes
Oct 30, 2026
Filed Nov 3, 2026
GLAUKOS GKOSTomas Navratil
Officer
Open-market sale
14,943 shares
$3.6M
at $239.64
−25%
The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Oct 30, 2026.
Oct 30, 2026
Filed Nov 3, 2026
GLAUKOS GKOSTomas Navratil
Officer
Open-market sale
12,836 shares
$3.1M
at $238.56
−18%
The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Oct 30, 2026.
Oct 30, 2026
Filed Nov 3, 2026
GLAUKOS GKOSTomas Navratil
Officer
Open-market sale
10,221 shares
$2.4M
at $237.54
−13%
The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Oct 30, 2026.
Oct 30, 2026
Filed Nov 3, 2026
GLAUKOS GKOSTomas Navratil
Officer
Open-market sale
6,436 shares
$1.5M
at $240.52
−15%
The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Oct 30, 2026.
Oct 30, 2026
Filed Nov 3, 2026
GLAUKOS GKOSTomas Navratil
Officer
Option exercise
8,788 shares
$755K
at $85.94
The same day as a Form 144 notice of a planned insider sale filed Oct 30, 2026.

Insider records

The 1 insiders in these trades with the most bought and sold on the open market across every company, in SEC Tracker's records.

InsiderBuysSalesBoughtSoldCompanies
Tomas Navratil04$10.6M1

Open-market trades are Form 4 transaction codes P (purchase) and S (sale). Planned sales are those the filing marks as made under a Rule 10b5-1 plan. A P-code buy at the offering price within a day of the company's FWP, 424B prospectus or offering 8-K is marked Bought in the offering and left out of open-market buy counts and cluster buys. Prices and values are as stated in each Form 4. Stock prices aren't shown on this page. Not investment advice.