Kooij Louise Frederika
Chief Accounting Officer
Kooij Louise Frederika has filed 10 SEC Form 4 filings (36 transaction rows) across 1 company, with disclosures dating back to 2025. 8 of those filings fall inside the rolling window. Most recent filing: Jul 22, 2026.
On the most recent filing, Kooij Louise Frederika is listed as Chief Accounting Officer at NewAmsterdam Pharma Co N.V. Inside the rolling window, Kooij Louise Frederika reported no open-market purchases and 12 open-market sales totaling $20.6M in NAMS. The largest disclosed transaction in the window is a sale of 150,000 NAMS shares on Sep 9, 2025, worth $3.9M.
Companies traded
Other insiders at NAMS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$20.6M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| NAMS | Chief Accounting Officer | Sale | 105,000 | $3.2M | Jul 22 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 40,000 | $1.2M | Jun 24 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 65,000 | $2.3M | May 27 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 39,816 | $1.3M | Jan 29 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 32,612 | $1.0M | Jan 29 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 38,172 | $1.3M | Jan 27 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 34,400 | $1.1M | Jan 27 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 2,647 | $88K | Jan 7 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 75,117 | $2.7M | Dec 29 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 26,011 | $928K | Dec 29 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 43,872 | $1.5M | Dec 29 | SEC ↗ | |
| NAMS | Chief Accounting Officer | Sale | 150,000 | $3.9M | Sep 10 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Sep 3, 2025 | NAMS | Sale | $453K |
Frequently asked questions
How many SEC Form 4 filings has Kooij Louise Frederika made?
Kooij Louise Frederika has filed 10 SEC Form 4 filings (36 transaction rows) across 1 company since 2025.
Which companies does Kooij Louise Frederika trade?
Kooij Louise Frederika has filed SEC Form 4 disclosures for 1 company, including NAMS.
When was Kooij Louise Frederika's most recent SEC Form 4 filing?
Kooij Louise Frederika's most recent SEC Form 4 filing on Tracefour is dated Jul 22, 2026.
What is Kooij Louise Frederika's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Kooij Louise Frederika is listed as Chief Accounting Officer.
What is Kooij Louise Frederika's total buy and sell value in the current window?
Inside the rolling retention window, Kooij Louise Frederika bought $0 and sold $20.6M based on SEC Form 4 filings.
What was Kooij Louise Frederika's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 150,000 NAMS shares on 2025-09-09, worth $3.9M, per SEC Form 4 filings.