It is that time of year, the double whammy of slower summer trading and second-quarter earnings hitting the tape daily. While that can usually act as a roadblock for insider buying, we continued to see executives and 10% owners initiating or adding to current positions.

We cover insider buying every week at 24/7 Wall St., and we like to remind our readers that while insider buying is usually a very positive sign, it is not in of itself a reason to run out and buy a stock. Sometimes insiders and 10% owners have stock purchase plans set up at intervals to add to their holdings. That aside, it still remains a positive indicator.

Here are the companies that reported notable insider buying this past week.

Lawson Products Inc. (NASDAQ: LAWS) is starting to become a regular on our insider buying screens. Texas money manager Luther Kent Capital Management, a 10% owner of the company, continues to add stock, as this is the third time in the past month. The company bought an additional 79,942 shares of the stock at prices between $23.45 and $23.50. The total for the sale came to $1.9 million. Lawson Products distributes various products and services for the industrial, commercial, institutional and government maintenance, repair and operations marketplace in the United States and Canada. The shares closed trading on Friday at $24.12.

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Layne Christensen Co. (NASDAQ: LAYN) is another company making an encore visit to the 24/7 Wall St. insider screens. A director at the company bought 67,135 shares of the stock at prices between $8.26 and $8.30 apiece. The total for the buy came to $556,000. Layne Christensen provides water management, construction and drilling services in North America and internationally. Shares ended the week at $8.79, so a well-timed trade.

Dorian LPG Ltd. (NYSE: LPG) had a C suite executive buying company stock this past week. CEO John C. Hadjipateras stepped up and bought a 20,000-share block of the stock at $16.94 per share. That cost him $339,000. The company operates as a liquefied petroleum gas (LPG) shipping company worldwide. As of June 04, 2015, it owned and operated six very large gas carriers and one pressurized LPG vessel. Shares were trading at $16.39 on Friday’s close.

Shiloh Industries Inc. (NASDAQ: SHLO) had a director at the company making a stock purchase this past week. That director bought 15,400 shares of the stock at $12.95 per share. The total for the buy came to $199,000. Insiders have been consistently acquiring shares of this company during the second quarter as the stock price has trickled lower despite solid earnings. The company, together with its subsidiaries, supplies light weighting, as well as noise, vibration and harshness solutions, to automotive, commercial vehicle and other industrial markets in Europe, Mexico and the United States. Shares closed trading on Friday at $12.37, down almost 1.7%.

TetraLogic Pharmaceuticals Corp. (NASDAQ: TLOG) has hit our screens recently, and a director at the firm was buying shares last week. That director purchased 50,000 shares of the company stock at $2.68 per share. The total for the buy came to $134,000. The clinical-stage biopharmaceutical company focuses on discovering and developing small molecule therapeutics in oncology and infectious diseases. Its clinical-stage product candidate, Birinapant, is in Phase 2 clinical trial administered with azacitidine for the treatment of myelodysplastic syndromes. The stock was trading on Friday at $2.85, so another well-timed buy.

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While overall it has been a slow and quiet week for insider buying, the drumbeat goes on, with executives and 10% owners continuing to add shares of companies, especially those that see a dip in the stock prices.

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