LEFF JONATHAN S
Transactions
50
Companies
14
Filings
18
CIK
0001215242
Recent Transactions
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Award
- Tax Payment
- Disposition from Tender
- Award
- Award
- Award
- Award
Series A-2 Convertible Preferred Stock, $0.001 Par Value
2012-01-09$100.00/sh+99,000→ 99,000 total - Award
Right to acquire Series A-3 Convertible Preferred Stock
2012-01-09+1→ 1 total - Award
- Award
- Other
- Other
- Disposition to Issuer
- Disposition to Issuer
- Disposition to Issuer
- Disposition from Tender
- Disposition to Issuer
- Disposition to Issuer
- Other
- Other
- Award
- Award
- Disposition to Issuer
- Disposition to Issuer
- Disposition to Issuer
- Disposition to Issuer
- Disposition from Tender
- Award
Series A-1 Convertible Preferred Stock, $0.001 Par Value
2010-09-10+11,307→ 371,307 total - Award
- Award
- Award
- Award
- Award
- Award
- Purchase
Common Stock, par value $0.001 per share ("Common Stock")
2010-01-26$14.10/sh+2,127,660→ 9,485,209 total - Exercise/Conversion
Companies
14ALLOS THERAPEUTICS INC
Director
ALPINE IMMUNE SCIENCES, INC.
Director
Altus Pharmaceuticals Inc.
Director, 10% Owner
- $SPRY
ARS Pharmaceuticals, Inc.
Director
AveXis, Inc.
Director
- $PHGE
BiomX Inc.
Director
INSPIRE PHARMACEUTICALS INC
Director
INTERMUNE INC
Director
- $LRMR
Larimar Therapeutics, Inc.
Director
NEUROGEN CORP
Director
- $TARA
Protara Therapeutics, Inc.
Director
Talon Therapeutics, Inc.
Director
- $VIRX
Viracta Therapeutics, Inc.
Director, 10% Owner
ZYMOGENETICS INC
Director
Recent Filings
18- 4
LEFF JONATHAN S
May 14, 2025
- 4/A
LEFF JONATHAN S
Apr 21, 2025
- 4
LEFF JONATHAN S
Apr 18, 2025
- 4
LEFF JONATHAN S
Jul 15, 2024
- 4
LEFF JONATHAN S
May 31, 2024
- 4
LEFF JONATHAN S
May 11, 2023
- 4
LEFF JONATHAN S
May 12, 2022
- 4
LEFF JONATHAN S
May 17, 2021
- 4
LEFF JONATHAN S
Sep 30, 2020
- 4
LEFF JONATHAN S
Jun 12, 2018
- 4
LEFF JONATHAN S
Aug 4, 2017
- 4
AveXis, Inc.
Feb 12, 2016
- 4
Nivalis Therapeutics, Inc.
Sep 15, 2015
- 4
Nivalis Therapeutics, Inc.
Jul 20, 2015
- 4
INTERMUNE INC
Mar 1, 2013
- 4
ALLOS THERAPEUTICS INC
Sep 5, 2012
- 4
INTERMUNE INC
Jun 6, 2012
- 4
Talon Therapeutics, Inc.
Feb 22, 2012
Address
C/O WARBURG PINCUS LLC 466 LEXINGTON AVENUE
NEW YORK, NY, 10017