KOOIJ LOUISE FREDERIKA

PrivateCIK: 2004379
Location

NAARDEN, P7

KOOIJ LOUISE FREDERIKA (Chief Accounting Officer) sold 74.8% of their position (72.43K shares) of NEWAMSTERDAM PHARMA CO N.V. on the open market

Open‑market sale worth $2.34M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderKOOIJ LOUISE FREDERIKACIK 2004379
Officer· Chief Accounting Officer
Since Jan 2026
-72.43K
Net shares
Net seller
$2.34M
Total sold
2
Open market trades
0B · 2S
6
Total transactions
72.43K acquired · 144.86K disposed
Non-Derivative Transactions4

Ordinary Shares

Direct
M · Option Exercise

Shares

+39.82K

Price / share

$10.90

Trade value

$433.99K

% of position

163.5%
1/27/2026
24.35K64.17K

Ordinary Shares

Direct
S · Sale

Shares

39.82K

Price / share

$32.62

Trade value

$1.30M

% of position

62.0%
1/27/2026
64.17K24.35K

Ordinary Shares

Direct
M · Option Exercise

Shares

+32.61K

Price / share

$10.90

Trade value

$355.47K

% of position

133.9%
1/28/2026
24.35K56.97K

Ordinary Shares

Direct
S · Sale

Shares

32.61K

Price / share

$31.80

Trade value

$1.04M

% of position

57.2%
1/28/2026
56.97K24.35K
Total

Net shares

+0.00

Net value

-$1.55M

Derivative Transactions2

Option (right to buy)

Direct
M · Option Exercise
Converts to

Ordinary Shares

39.82K shares

Shares

39.82K

Strike price

10.90

Held after

105.75K

Exercisable

1/27/2026

Option (right to buy)

Direct
M · Option Exercise
Converts to

Ordinary Shares

32.61K shares

Shares

32.61K

Strike price

10.90

Held after

73.13K

Exercisable

1/28/2026
KOOIJ LOUISE FREDERIKA — Insider Transaction (Form 4) Filed Jan 29, 2026 | Finecho