Granahan Investment Management LLC Increases Holdings in NPK International Inc. $NPKI

Posted by Geri Gentry on Jun 17th, 2026

Granahan Investment Management LLC lifted its position in shares of NPK International Inc. (NYSE:NPKI – Free Report) by 16.1% during the 4th quarter, according to its most recent filing with the Securities and Exchange Commission (SEC). The institutional investor owned 580,447 shares of the company’s stock after acquiring an additional 80,507 shares during the quarter. Granahan Investment Management LLC’s holdings in NPK International were worth $6,919,000 at the end of the most recent quarter.

Several other institutional investors have also modified their holdings of the company. State of Wisconsin Investment Board boosted its stake in shares of NPK International by 7.2% during the 4th quarter. State of Wisconsin Investment Board now owns 93,891 shares of the company’s stock worth $1,119,000 after acquiring an additional 6,275 shares in the last quarter. Graham Capital Management L.P. boosted its stake in shares of NPK International by 24.6% during the 4th quarter. Graham Capital Management L.P. now owns 45,768 shares of the company’s stock worth $546,000 after acquiring an additional 9,044 shares in the last quarter. Magnetar Financial LLC purchased a new stake in shares of NPK International during the 4th quarter worth approximately $382,000. Rothschild Wealth LLC purchased a new stake in shares of NPK International during the 4th quarter worth approximately $1,651,000. Finally, Squarepoint Ops LLC boosted its stake in shares of NPK International by 229.4% during the 4th quarter. Squarepoint Ops LLC now owns 58,656 shares of the company’s stock worth $699,000 after acquiring an additional 40,851 shares in the last quarter. Hedge funds and other institutional investors own 80.81% of the company’s stock.

NPK International Trading Up 0.3%

Shares of NPK International stock opened at $14.82 on Wednesday. The company has a debt-to-equity ratio of 0.02, a current ratio of 1.58 and a quick ratio of 1.40. NPK International Inc. has a 1 year low of $8.17 and a 1 year high of $16.50. The company has a market capitalization of $1.25 billion, a P/E ratio of 32.22 and a beta of 1.24. The business has a 50 day moving average price of $15.04 and a 200 day moving average price of $14.04.

NPK International (NYSE:NPKI – Get Free Report) last issued its quarterly earnings data on Thursday, April 30th. The company reported $0.12 earnings per share (EPS) for the quarter, topping the consensus estimate of $0.11 by $0.01. NPK International had a return on equity of 10.56% and a net margin of 13.71%.The firm had revenue of $75.07 million during the quarter. Sell-side analysts anticipate that NPK International Inc. will post 0.54 EPS for the current fiscal year.

Wall Street Analyst Weigh In

NPKI has been the topic of several research analyst reports. Weiss Ratings raised NPK International from a “hold (c)” rating to a “hold (c+)” rating in a research note on Monday. B. Riley Financial reissued a “buy” rating on shares of NPK International in a research note on Monday, May 4th. Three investment analysts have rated the stock with a Buy rating and one has assigned a Hold rating to the company. According to MarketBeat.com, the stock has an average rating of “Moderate Buy” and an average price target of $14.17.

Get Our Latest Stock Report on NPKI

Insider Buying and Selling

In related news, CEO Matthew Lanigan sold 167,375 shares of NPK International stock in a transaction that occurred on Wednesday, June 3rd. The stock was sold at an average price of $14.43, for a total transaction of $2,415,221.25. Following the completion of the transaction, the chief executive officer directly owned 254,699 shares in the company, valued at $3,675,306.57. The trade was a 39.66% decrease in their position. The sale was disclosed in a document filed with the SEC, which is available at this hyperlink. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan. Also, CFO Gregg Piontek sold 35,000 shares of NPK International stock in a transaction that occurred on Wednesday, April 1st. The stock was sold at an average price of $14.51, for a total value of $507,850.00. Following the transaction, the chief financial officer owned 834,326 shares of the company’s stock, valued at $12,106,070.26. This represents a 4.03% decrease in their ownership of the stock. The disclosure for this sale is available in the SEC filing. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan. Over the last 90 days, insiders have sold 238,159 shares of company stock valued at $3,454,567. 4.20% of the stock is currently owned by company insiders.

NPK International Company Profile

(Free Report)

NPK International, Inc (NYSE: NPKI) is a specialty chemical distributor supplying a broad range of industrial and performance materials across diverse end-markets. Its product portfolio includes acetic acid and derivatives, alcohols, ketones, esters, glycol ethers, glycols, specialty solvents, select inorganic chemicals and crop-protection intermediates. These materials serve industries such as coatings, adhesives and sealants, oil and gas, personal care, pharmaceuticals, agrochemicals and water treatment.

The company places a strong emphasis on supply-chain security and technical service, maintaining warehousing, logistics support and laboratory capabilities at its regional distribution centers.