NASDAQ:NBIX

Neurocrine Biosciences Stock Insider Trading

Healthcare > Drug Manufacturers - Specialty & Generic

Buy NBIX

*Your capital is at risk

$175.77

+1.62 (+0.93%)

At Close: Jul 24, 2026

Neurocrine Biosciences Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -78.39. In total, the insiders bought 811.91K and sold 403.71K NBIX 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)	-78.39
● Buy	811.91K shares
● Sell	403.71K shares
70% Buy Activity Negligible or No Correlation
Sell Signal Medium Confidence May 19, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -78.39. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jul 10, 2026 Buy	Non-Qualified Stock Option M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	4 367 Value: $463.0K
Jul 10, 2026 Sell	Common Stock S-Sale	Delaet Ingrid Chief Regulatory Officer	Officer	4 367 Value: $790.5K
Jul 10, 2026 Buy	Common Stock M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	4 367 Value: $463.0K
Jul 09, 2026 Buy	Common Stock M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	10 000 Value: $814.9K
Jul 09, 2026 Sell	Common Stock S-Sale	Lippoldt Darin Chief Legal Officer	Officer	10 000 Value: $1.80M
Jul 09, 2026 Buy	Non-Qualified Stock Option M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	10 000 Value: $814.9K
Jul 09, 2026 Buy	Common Stock M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	8 433 Value: $873.0K
Jul 09, 2026 Buy	Non-Qualified Stock Option M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	8 433 Value: $873.0K
Jul 09, 2026 Sell	Common Stock S-Sale	Delaet Ingrid Chief Regulatory Officer	Officer	8 433 Value: $1.51M
Jul 08, 2026 Buy	Common Stock M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	2 737 Value: $283.3K
Jul 08, 2026 Sell	Common Stock S-Sale	Delaet Ingrid Chief Regulatory Officer	Officer	2 737 Value: $488.7K
Jul 08, 2026 Buy	Non-Qualified Stock Option M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	2 737 Value: $283.3K
Jul 07, 2026 Buy	Common Stock M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	3 401 Value: $352.1K
Jul 07, 2026 Sell	Common Stock S-Sale	Delaet Ingrid Chief Regulatory Officer	Officer	3 401 Value: $607.3K
Jul 07, 2026 Buy	Non-Qualified Stock Option M-Exempt	Delaet Ingrid Chief Regulatory Officer	Officer	3 401 Value: $352.1K
Jun 29, 2026 Buy	Non-Qualified Stock Option M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	8 110 Value: $660.9K
Jun 29, 2026 Buy	Non-Qualified Stock Option M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	1 690 Value: $137.7K
Jun 29, 2026 Sell	Common Stock S-Sale	Lippoldt Darin Chief Legal Officer	Officer	1 690 Value: $288.7K
Jun 29, 2026 Sell	Common Stock S-Sale	Lippoldt Darin Chief Legal Officer	Officer	8 110 Value: $1.38M
Jun 29, 2026 Buy	Common Stock M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	1 690 Value: $137.7K
Jun 29, 2026 Buy	Common Stock M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	8 110 Value: $660.9K
Jun 26, 2026 Buy	Non-Qualified Stock Option M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	200 Value: $16.3K
Jun 26, 2026 Sell	Common Stock S-Sale	Lippoldt Darin Chief Legal Officer	Officer	200 Value: $33.9K
Jun 26, 2026 Buy	Common Stock M-Exempt	Lippoldt Darin Chief Legal Officer	Officer	200 Value: $16.3K
Jun 05, 2026 Sell	Common Stock S-Sale	Sherwin Stephen A Director	Director	7 883 Value: $1.29M

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

ABOUT NEUROCRINE BIOSCIENCES

Neurocrine Biosciences, Inc. discovers, develops, and markets pharmaceuticals for neurological, endocrine, and psychiatric disorders. The company's portfolio includes treatments for tardive dyskinesia, Parkinson's disease, endometriosis, and uterine fibroids, as well as clinical programs in various therapeutic areas. Its lead asset is INGREZZA, a VMAT2 inhibitor for the treatment of tardive dyskinesia. The company's commercial products include ON...

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