The Nasdaq 100 closed higher by more than 1% on Monday. Investors, meanwhile, focused on some notable insider trades.

When insiders sell shares, it could be a preplanned sale, or could indicate their concern in the company's prospects or that they view the stock as being overpriced. Insider sales should not be taken as the only indicator for making an investment or trading decision. At best, it can lend conviction to a selling decision.

Below is a look at a few recent notable insider sales. For more, check out Benzinga's insider transactions platform.

CrowdStrike Holdings

• The Trade: CrowdStrike Holdings, Inc. (NASDAQ:CRWD) Chief Security Officer Shawn Henry sold a total of 4,500 shares at an average price of $382.93. The insider received around $1.72 million from selling those shares.
• What's Happening: On June 7, CrowdStrike announced the company will join the S&P 500.
• What CrowdStrike Does: CrowdStrike is a cloud-based cybersecurity company specializing in next-generation security verticals such as endpoint, cloud workload, identity, and security operations.

Have a look at our premarket coverage here

Workday

• The Trade: Workday, Inc. (NASDAQ:WDAY) 10% owner David A Duffield sold a total of 57,000 shares at an average price of $209.17. The insider received around $11.92 million from selling those shares.
• What's Happening: On June 12, Clemson University selected Workday to accelerate digital transformation and support the University's strategic plan.
• What Workday Does: Workday is a software company that offers human capital management, or HCM, financial management, and business planning solutions.

NVIDIA

• The Trade: NVIDIA Corporation (NASDAQ:NVDA) President and CEO
• Jen Hsun Huang sold a total of 240,000 shares at an average price of $129.94. The insider received around $31.18 million from selling those shares.
• What's Happening: NVIDIA recently announced a 10-for-1 stock split. The semiconductor giant revealed this decision during its recent quarterly earnings report. The split-adjusted trading commenced on Monday, June 10.
• What NVIDIA Does: Nvidia is a leading developer of graphics processing units.

Pinterest

• The Trade: Pinterest, Inc. (NYSE:PINS) Chief Accounting Officer Andrea Acosta sold a total of 3,845 shares at an average price of $43.90. The insider received around $168,796 from selling those shares.
• What's Happening: On June 14, Piper Sandler analyst Thomas Champion maintained Pinterest with an Overweight and maintained a $52 price target.
• What Pinterest Does: Pinterest is an online product and idea discovery platform that helps users gather ideas on everything from cooking recipes to travel destinations.