KOOIJ LOUISE FREDERIKA

PrivateCIK: 2004379
Location

NAARDEN, P7

KOOIJ LOUISE FREDERIKA (Chief Accounting Officer) sold 17.6% of their position (2.65K shares) of NEWAMSTERDAM PHARMA CO N.V. on the open market

Open‑market sale worth $88.0K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderKOOIJ LOUISE FREDERIKACIK 2004379
Officer· Chief Accounting Officer
Since Jan 2026
+62.85K
Net shares
Net buyer
$88.0K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
65.50K acquired · 2.65K disposed
Non-Derivative Transactions2

Ordinary Shares

Direct
S · Sale

Shares

2.65K

Price / share

$33.25

Trade value

$88.01K

% of position

17.6%
1/5/2026
15K12.35K

Ordinary Shares

Direct
A · Award

Shares

+12K

Price / share

Trade value

% of position

97.1%
1/7/2026
12.35K24.35K
Total

Net shares

+9.35K

Net value

-$88.01K

Derivative Transactions1

Option (right to buy)

Direct
A · Award
Converts to

Ordinary Shares

53.50K shares

Shares

+53.50K

Strike price

35.45

Held after

53.50K

Exercisable

1/7/2026
KOOIJ LOUISE FREDERIKA — Insider Transaction (Form 4) Filed Jan 7, 2026 | Finecho