CATALYST4, INC.

PrivateCIK: 1900201
Location

PALO ALTO, CA

CATALYST4, INC. purchased 38.2% of their position (5.44M shares) of MAPLIGHT THERAPEUTICS, INC. on the open market

Open‑market purchase worth $92.50M — a major conviction buy. The strongest form of insider conviction signal.

P · 1 purchase
InsiderCATALYST4, INC.CIK 1900201
10% Owner
Since Oct 2025
+5.44M
Net shares
Net buyer
$92.50M
Total acquired
1
Open market trades
1B · 0S
8
Total transactions
19.70M acquired · 14.26M disposed
Non-Derivative Transactions2

Voting Common Stock

Indirect
C · Conversion

Shares

+14.26M

Price / share

Trade value

% of position

New position
10/28/2025
0.0014.26M

Voting Common Stock

Indirect
P · Purchase

Shares

+5.44M

Price / share

$17.00

Trade value

$92.50M

% of position

38.2%
10/28/2025
14.26M19.70M
Total

Net shares

+19.70M

Net value

$92.50M

Derivative Transactions6

Series A Preferred Stock

Indirect
C · Conversion
Converts to

Voting Common Stock

148.81K shares

Shares

148.81K

Strike price

Held after

0.00

Exercisable

10/28/2025

Series A-1 Preferred Stock

Indirect
C · Conversion
Converts to

Voting Common Stock

444.85K shares

Shares

444.85K

Strike price

Held after

0.00

Exercisable

10/28/2025

Series B Preferred Stock

Indirect
C · Conversion
Converts to

Voting Common Stock

1.26M shares

Shares

1.26M

Strike price

Held after

0.00

Exercisable

10/28/2025

Series B-1 Preferred Stock

Indirect
C · Conversion
Converts to

Voting Common Stock

275.15K shares

Shares

275.15K

Strike price

Held after

0.00

Exercisable

10/28/2025

Series C Preferred Stock

Indirect
C · Conversion
Converts to

Voting Common Stock

5.44M shares

Shares

5.44M

Strike price

Held after

0.00

Exercisable

10/28/2025

Series D Preferred Stock

Indirect
C · Conversion
Converts to

Voting Common Stock

6.68M shares

Shares

6.68M

Strike price

Held after

0.00

Exercisable

10/28/2025
CATALYST4, INC. — Insider Transaction (Form 4) Filed Oct 29, 2025 | Finecho