Tananbaum James B.
SEC insider (Form 3/4/5 filer). CIK 0001581754. Director & 10% Owner at Latigo Biotherapeutics, Inc. (LTGO) and 1 other issuer. 21 reported Form 4/5 transactions since Sep 2024; latest on Aug 10, 2026. Located in THOUSAND OAKS, CA.
Companies Tananbaum James B. has filed insider reports for
- Latigo Biotherapeutics, Inc. (LTGO): Director, 10% Owner
- ALUMIS INC. (ALMS): Director, 10% Owner
Tananbaum James B.
CIK: 0001581754
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (21 total)
- Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect3.1M shares- - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect1.1M shares- - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
PurchaseIndirect140K shares at avg. $18.00$2.5M - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect195.8K shares- - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect742.2K shares- - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect296.9K shares- - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect3.1M shares- - Aug 10, 2026LTGO
Latigo Biotherapeutics, Inc.
ConversionIndirect445.3K shares- - Apr 1, 2026ALMS
ALUMIS INC.
OtherIndirect680.5K shares- - Apr 1, 2026ALMS
ALUMIS INC.
OtherIndirect1.1M shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 10, 2026 |  LTGO Latigo Biotherapeutics, Inc. | Conversion | 3,117,664 | - | $0 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Conversion | 1,125,823 | - | $0 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Purchase | 140,000 | $18.00 | $2,520,000 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Conversion | 195,776 | - | $0 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Conversion | 742,201 | - | $0 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Conversion | 296,880 | - | $0 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Conversion | 3,117,664 | - | $0 | Indirect |
| Aug 10, 2026 | LTGO Latigo Biotherapeutics, Inc. | Conversion | 445,320 | - | $0 | Indirect |
| Apr 1, 2026 |  ALMS ALUMIS INC. | Other | 680,486 | - | $0 | Indirect |
| Apr 1, 2026 | ALMS ALUMIS INC. | Other | 1,123,337 | - | $0 | Indirect |
1-10 of 21 transactions