TANANBAUM JAMES B.

PrivateCIK: 1581754
Location

WEST HOLLYWOOD, CA

TANANBAUM JAMES B. purchased 7.5% of their position (140K shares) of LATIGO BIOTHERAPEUTICS, INC. on the open market

Open‑market purchase worth $2.52M — a moderate purchase. The strongest form of insider conviction signal.

P · 1 purchase
InsiderTANANBAUM JAMES B.CIK 1581754
→
Director10% Owner
Since Aug 2026
+140K
Net shares
Net buyer
$2.52M
Total acquired
1
Open market trades
1B · 0S
15
Total transactions
9.18M acquired · 9.04M disposed
Non-Derivative Transactions8

Common Stock

Indirect
C · Conversion

Shares

+3.12M

Price / share

—

Trade value

—

% of position

New position
8/10/2026
0.00→3.12M

Common Stock

Indirect
C · Conversion

Shares

+445.32K

Price / share

—

Trade value

—

% of position

14.3%
8/10/2026
3.12M→3.56M

Common Stock

Indirect
C · Conversion

Shares

+1.13M

Price / share

—

Trade value

—

% of position

New position
8/10/2026
0.00→1.13M

Common Stock

Indirect
C · Conversion

Shares

+742.20K

Price / share

—

Trade value

—

% of position

65.9%
8/10/2026
1.13M→1.87M

Common Stock

Indirect
P · Purchase

Shares

+140K

Price / share

$18.00

Trade value

$2.52M

% of position

7.5%
8/10/2026
1.87M→2.01M

Common Stock

Indirect
C · Conversion

Shares

+195.78K

Price / share

—

Trade value

—

% of position

9.7%
8/10/2026
2.01M→2.20M

Common Stock

Indirect
C · Conversion

Shares

+3.12M

Price / share

—

Trade value

—

% of position

New position
8/10/2026
0.00→3.12M

Common Stock

Indirect
C · Conversion

Shares

+296.88K

Price / share

—

Trade value

—

% of position

9.5%
8/10/2026
3.12M→3.41M
Total

Net shares

+9.18M

Net value

$2.52M

Derivative Transactions7

Series A-2 Convertible Stock

Indirect
C · Conversion
Converts to

Common Stock

3.12M shares

Shares

−3.12M

Strike price

Held after

0.00

Exercisable

—

8/10/2026

Series B Convertible Preferred Stock

Indirect
C · Conversion
Converts to

Common Stock

445.32K shares

Shares

−445.32K

Strike price

Held after

0.00

Exercisable

—

8/10/2026

Series A-2 Convertible Preferred Stock

Indirect
C · Conversion
Converts to

Common Stock

1.13M shares

Shares

−1.13M

Strike price

Held after

0.00

Exercisable

—

8/10/2026

Series B Convertible Preferred Stock

Indirect
C · Conversion
Converts to

Common Stock

742.20K shares

Shares

−742.20K

Strike price

Held after

0.00

Exercisable

—

8/10/2026

Series A-2 Convertible Preferred Stock

Indirect
C · Conversion
Converts to

Common Stock

3.12M shares

Shares

−3.12M

Strike price

Held after

0.00

Exercisable

—

8/10/2026

Series B Convertible Preferred Stock

Indirect
C · Conversion
Converts to

Common Stock

296.88K shares

Shares

−296.88K

Strike price

Held after

0.00

Exercisable

—

8/10/2026

Convertible Promissory Note

Indirect
C · Conversion
Converts to

Common Stock

195.78K shares

Shares

−195.78K

Strike price

Held after

0.00

Exercisable

—

8/10/2026
TANANBAUM JAMES B. — Insider Transaction (Form 4) Filed Aug 11, 2026 | Finecho