SPAC Tracker is a feature highlighting some of the special-purpose acquisition companies, also known as blank-check companies, that have filed for initial public offerings with the U.S. Securities and Exchange Commission during the past week.

TKB Critical Technologies 1

TKB Critical Technologies 1 filed for a $200 million initial public offering on Oct. 8

The company, which said investment firm TKB Capital is an affiliate of its sponsor, plans to concentrate its efforts in identifying businesses that provide critical technologies in the industrial base supply chain recognized by the U.S. government to maintain "technological leadership, national security, and supply chain independence." These technologies include advanced manufacturing, artificial intelligence, data security, robotics and wireless communications equipment, among others, the company said.

The company said its co-chief executive, Greg Klein, co-founded TKB Capital. Co-chief executive and chief financial officer Angela Blatteis has been a managing partner of TKB Capital since 2019, it said.

Decarbonization Plus Acquisition Corp. V

Decarbonization Plus Acquisition Corp. V filed for a $275 million IPO on Oct. 8.

The company said its sponsor, Decarbonization Plus Acquisition Sponsor V LLC, is an affiliate of Riverstone Investment Group LLC.

The company said it plans to use the Riverstone platform to identify a business that to advance the objectives of global decarbonization.

Riverstone has been involved in the formation of a number of special purpose acquisition companies, including Silver Run Acquisition Corp. and Decarbonization Plus Acquisition Corp. II, III and IV, the company said.

OPY Acquisition Corp. I

OPY Acquisition Corp. I filed for a $100 million IPO on Oct. 8

The company said its sponsor, OPY Acquisition LLC I, is controlled and managed by Oppenheimer Alternative Investment Management LLC, an affiliate of Oppenheimer & Co.

The company said it intends to pursue targets in the life sciences industry, with a primary focus on novel therapeutics, medical devices or services that help improve healthcare outcomes. It said it intends to focus on assets based in the U.S., Europe and Israel.

Green Visor Financial Technology Acquisition Corp. I

Green Visor Financial Technology Acquisition Corp. I filed for a $150 million IPO on Tuesday.

The company said its sponsor is an affiliate of Green Visor Capital, a venture capital firm that invests in and works with "socially responsible entrepreneurial management teams that use innovative technology to solve substantive problems in financial services."

The company also said Joe Saunders, its chief executive and chairman, was chairman and CEO of Visa Inc. from 2007 until 2013.

Mercato Partners Acquisition Corp.

Mercato Partners Acquisition Corp. filed for a $200 million IPO on Wednesday.

Mercato Management was founded in 2007 and raised eight funds across four different strategies, the company said.

The company said it intends to focus on a target business operating in either the technology or branded consumer products industry.

TLGY Acquisition Corp.

TLGY Acquisition Corp. filed for a $175 million IPO on Thursday.

The company said it plans to target industries where its management team and founder's expertise will provide it with a competitive advantage, including biopharma or technology-enabled business-to-consumer industries globally.

The company said its team's "strong ties to Asia gives us an advantage in sourcing Asia-originated biopharma companies with global aspirations for the purposes of a business combination in the U.S. market."

Jin-Goon Kim, the SPAC's founder, was with TPG Capital from 2006 to 2016, where he served as a partner, TLGY Acquisition said.

Write to Stephen Nakrosis at stephen.nakrosis@wsj.com