The Nasdaq 100 closed lower by around 300 points on Friday. 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.

Dollar General

The Trade: Dollar General Corporation ( DG ) Director Ralph Santana sold a total of 3,009 shares at an average price of $155.72. The insider received around $468,568 from selling those shares.

What's Happening: On April 2, Evercore ISI Group analyst Michael Montani maintained Dollar General ( DG ) with an In-Line and lowered the price target from $162 to $160.

What Dollar General Does: With over 20,000 locations, Dollar General ( DG )'s banner is nearly ubiquitous across the rural United States. Dollar General ( DG ) serves as a convenient shopping destination for fill-in store trips, with its value proposition most relevant to consumers in small communities with a dearth of shopping options.

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Greenbrier Companies

The Trade: The Greenbrier Companies, Inc. ( GBX ) SVP, COO, The Americas William J. Krueger sold a total of 8,800 shares at an average price of $52.87. The insider received around $465,252 from selling those shares.

What's Happening: On April 5, the company said Rrvenue declined to $862.7 million in the second quarter from $1.122 billion a year ago but was above the consensus of $843.3 million.

What Greenbrier Does: Greenbrier Companies Inc ( GBX ) designs, manufactures, and markets railroad freight car equipment in North America and Europe, marine barges in North America and provides wheel services, railcar refurbishment, and parts, leasing and other services to the railroad.

BJ's Wholesale Club

The Trade: BJ's Wholesale Club Holdings, Inc. EVP, Chief Digital Officer Monica Schwartz sold a total of 13,578 shares at an average price of $78.81. The insider received around $1.07 million from selling those shares.

What's Happening: On April 8, Goldman Sachs analyst Kate McShane upgraded BJ's Wholesale Club from Neutral to Buy and raised the price target from $81 to $87..

What BJ's Wholesale Club Does: BJ's Wholesale Club Holdings Inc is a warehouse club and gas station operator.

Designer Brands

The Trade: Designer Brands Inc. ( DBI ) Director Harvey L Sonnenberg sold a total of 9,000 shares at an average price of $8.65. The insider received around $77,868 from selling those shares.

What's Happening: On March 21, Designer Brands ( DBI ) reported fourth-quarter financial results and said its total comparable sales decreased by 7.3%.

What Designer Brands Does: Designer Brands Inc ( DBI ) is a designer, producer, and retailer of footwear and accessories.

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