Assembly Biosciences, Inc.

Assembly Biosciences, Inc.

ASMBยทNASDAQ

$24.57

+0.33%
HealthcareBiotechnology

Assembly Biosciences, Inc., a clinical-stage biotechnology company, discovers and develops therapeutic candidates for the treatment of hepatitis B virus (HBV) infection in the United States. The company's lead product candidate is Vebicorvir, which as completed Phase 2 clinical trials to treat patients with chronic HBV infection. It is also developing ABI-H3733 that has completed Phase 1a clinical study, and ABI-4334, which is in pre-clinical trials for the treatment of HBV. The company has collaboration agreements with BeiGene, Ltd. and Arbutus Biopharma Corporation; and Antios Therapeutics, Inc. to evaluate a triple combination treatment in patients with chronic hepatitis B virus infection. It also has strategic license agreements with Indiana University Research and Technology Corporation; and Door Pharmaceuticals, LLC. The company was formerly known as Ventrus Biosciences, Inc. and changed its name to Assembly Biosciences, Inc. in June 2014. Assembly Biosciences, Inc. was incorporated in 2005 and is headquartered in South San Francisco, California.

At a Glance

Live Snapshot
Market Cap$390.48M
EPS-0.5500
P/E Ratio-44.67
Earnings Date08/05/2026
-5.79%
Return on Invested Capital
-91%
3Y-95.0%
5Y-77.0%
10Y-88.0%
-2.96%
Return on Equity
-98%
3Y-97.0%
5Y-89.0%
10Y-95.0%
-2.38%
Return on Assets
-93%
3Y-97.0%
5Y-89.0%
10Y-95.0%
Assembly Biosciences, Inc.

Assembly Biosciences, Inc. Management Team

ASMB ยท NASDAQ
MJ

Mr. Jason A. Okazaki J.D.

Chief Executive Officer, President & Director

Compensation

$1,129,460

Born 1976(Age 50)
male
MJ

Ms. Jennifer A. Troia MHROD, SHRM-SCP, SPHR

Chief Human Resources Officer

female
DN

Dr. Nicole S. White Ph.D.

Chief Manufacturing Officer

Compensation

$655,840

Born 1980(Age 46)
DA

Dr. Anuj Gaggar M.D., Ph.D.

Chief Medical Officer

Born 1978(Age 48)
DW

Dr. William E. Delaney IV, Ph.D.

Chief Scientific Officer

Compensation

$767,242

Born 1972(Age 54)
MJ

Ms. Jeanette M. Bjorkquist

Executive Director of Accounting & Treasury

female
MT

Mr. Thomas E. Rollins

Executive Officer

Compensation

$472,550

Born 1956(Age 70)
male
AF

Amy Figueroa C.F.A.

Investor Relations Consultant

MS

Mr. Shannon Ryan

Senior Vice President of Investor Relations, Corporate Affairs & Alliance Management

male
asmb

Assembly Biosciences, Inc. Insider Positioning

ASMB ยท NASDAQ

During the last 12 months, insiders have purchased $25.19M and sold $8K worth of ASMB shares, resulting in $25.19M of net buying activity.

3 Months

Bought

0

0.00

Sold

312

8.31K

Net Activity

-8K

-$8K

3-6 Months

Bought

0

0.00

Sold

0

0.00

Net Activity

+0

+$0

6-9 Months

Bought

0

0.00

Sold

0

0.00

Net Activity

+0

+$0

9-12 Months

Bought

1.2M

25.19M

Sold

0

0.00

Net Activity

+25.2M

+$25.19M

Top Buyers

1
GSI

Gilead Sciences, Inc.

10 Percent Owner

1.1M sharesโ€ข1 transactions

$24.80M

2
RWR

Ringo William R

Director

3.5K sharesโ€ข1 transactions

$55K

3
AAE

Altig Anthony E

Director

3.5K sharesโ€ข1 transactions

$55K

4
HM

Houghton Michael

Director

3.5K sharesโ€ข1 transactions

$55K

5
CG

Consylman Gina

Director

3.5K sharesโ€ข1 transactions

$55K

Top Sellers

1
BJM

Bjorkquist Jeanette M

Officer: Pfo And Pao

312 sharesโ€ข1 transactions

$8K

Insider Activity Analysis

Net Insider Sentiment

Bullish

Strong bullish signal with $25.19M net buying. Insiders are aggressively accumulating shares, suggesting significant confidence in future prospects.

Buy/Sell Ratio

3030.27:1

Exceptional buy/sell ratio. Buying dramatically outweighs sellingโ€”one of the strongest possible insider signals.

Recent Trend (3 Months)

$8K

Heavy recent selling activity. Recent insider sales notably exceed purchasesโ€”may warrant investigation into company developments.

Insider Participation

High Buying

5 insider buyers vs. 1 sellers. Broad-based buying across management team suggests widespread confidence.

Insider Activity Insight

Compelling insider conviction: The combination of strong buy/sell ratio and multiple buyers suggests insiders see attractive risk/reward. Consider this alongside fundamental analysis for confirmation.

SEC Filings

ASMB - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
DEF 14A

DEF 14A 2026

N/A

April 22, 2026
June 04, 2026
2026
DEF 14A

DEF 14A 2025

N/A

April 23, 2025
June 05, 2025
2025
DEF 14A

DEF 14A 2024

N/A

April 17, 2024
May 29, 2024
2024
DEF 14A

DEF 14A 2024

N/A

December 21, 2023
January 31, 2024
2024
DEF 14A

DEF 14A 2023

N/A

April 12, 2023
May 25, 2023
2023
DEF 14A

DEF 14A 2022

N/A

April 12, 2022
May 25, 2022
2022
DEF 14A

DEF 14A 2021

N/A

April 07, 2021
May 20, 2021
2021
DEF 14A

DEF 14A 2020

N/A

April 27, 2020
June 11, 2020
2020
DEF 14A

DEF 14A 2019

N/A

April 04, 2019
May 17, 2019
2019
DEF 14A

DEF 14A 2018

N/A

April 19, 2018
May 30, 2018
2018
Showing 1 to 10 of 17 filings