NASDAQ:ASMB

Assembly Biosciences Stock Insider Trading

etoro logo Buy ASMB
*Your capital is at risk
$25.55
+0.330 (+1.31%)
At Close: Jul 24, 2026

Assembly Biosciences Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 99.88. In total, the insiders bought 13.02M and sold 7.85K ASMB shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
99.88
Buy 13.02M shares
Sell 7.85K shares
77% Buy Activity
Weak Positive Correlation
Sell Signal Low Confidence
Mar 30, 2026

Analysis Breakdown:

  • Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 99.88.
  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
Nov 22, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 17 024
Value: $253.1K
Nov 18, 2024
Sell
Common Stock
S-Sale
White Nicole S
Chief Manufacturing Officer
Officer 40
Value: $652
Nov 18, 2024
Sell
Common Stock
S-Sale
White Nicole S
Chief Manufacturing Officer
Officer 40
Value: $652
Oct 08, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 10 000
Value: $145.8K
Oct 08, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 10 000
Value: $145.8K
Oct 03, 2024
Sell
Common Stock
S-Sale
White Nicole S
Chief Manufacturing Officer
Officer 157
Value: $2K
Oct 03, 2024
Sell
Common Stock
S-Sale
Okazaki Jason A
CEO And President
CEO / President 197
Value: $3K
Oct 03, 2024
Sell
Common Stock
S-Sale
Okazaki Jason A
CEO And President
CEO / President 197
Value: $3K
Oct 03, 2024
Sell
Common Stock
S-Sale
White Nicole S
Chief Manufacturing Officer
Officer 157
Value: $2K
Aug 02, 2024
Sell
Common Stock
S-Sale
White Nicole S
Chief Manufacturing Officer
Officer 785
Value: $11.2K
Aug 02, 2024
Sell
Common Stock
S-Sale
Okazaki Jason A
CEO And President
CEO / President 981
Value: $14.0K
Aug 02, 2024
Sell
Common Stock
S-Sale
Okazaki Jason A
CEO And President
CEO / President 981
Value: $14.0K
Aug 02, 2024
Sell
Common Stock
S-Sale
White Nicole S
Chief Manufacturing Officer
Officer 785
Value: $11.2K
Jul 05, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 4 438
Value: $55.6K
Jul 05, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 4 438
Value: $55.6K
Jul 03, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 4 562
Value: $56.1K
Jul 03, 2024
Buy
Common Stock
P-Purchase
Schornstein Alexander
10 Percent Owner
10% Owner 4 562
Value: $56.1K
Jun 17, 2024
Buy
Common Stock
P-Purchase
Gilead Sciences, Inc.
10 Percent Owner
10% Owner 179 500
Value: $180
Jun 17, 2024
Buy
Warrant to purchase Common Stock
P-Purchase
Gilead Sciences, Inc.
10 Percent Owner
10% Owner 179 500
Value: $3.05M
Jun 17, 2024
Buy
Warrant to purchase Common Stock
P-Purchase
Gilead Sciences, Inc.
10 Percent Owner
10% Owner 179 500
Value: $3.05M
Jun 17, 2024
Buy
Common Stock
P-Purchase
Gilead Sciences, Inc.
10 Percent Owner
10% Owner 179 500
Value: $180
May 29, 2024
Buy
Stock Option (right to buy)
A-Award
Johnson-pratt Lisa
Director
Director 2 750
Value: $41.4K
May 29, 2024
Buy
Stock Option (right to buy)
A-Award
Mchutchison John G
Director
Director 2 750
Value: $41.4K
May 29, 2024
Buy
Stock Option (right to buy)
A-Award
Mahony Susan
Director
Director 2 750
Value: $41.4K
May 29, 2024
Buy
Stock Option (right to buy)
A-Award
Houghton Michael
Director
Director 2 750
Value: $41.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT ASSEMBLY BIOSCIENCES
Assembly Biosciences
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 tri...
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