David J. Hagen

William Blair & Co. LLC (William Blair) is a SEC-registered broker/dealer firm headquartered in Chicago, Illinois. The firm was founded by William McCormick Blair in 1935 and is a subsidiary of WBC Holdings LP. Until 1941, they were known as Blair, Bonner & Co. William Blair provides broking services to individual, institutional and issuing clients.

Founded in 1998, Thomas Weisel Partners (TWP) is a broker/dealer headquartered in San Francisco with offices in New York City, Boston, Denver, Colorado and Palo Alto, California. The firm is a subsidiary of Thomas Weisel Partners Group, Inc. (Nasdaq: TWPG), a San Francisco-based investment banking firm. Their ultimate parent is Stifel Financial Corp. (NYSE: SF). TWP's investment banking, brokerage and equity research divisions serve emerging growth companies and institutional investors around the world. They are a member of the NYSE, the SIPC and FINRA. TWP specializes in the growth sectors of the economy with a particular focus on the consumer, energy, healthcare, Internet, media/telecommunications, metals/mining and technology sectors. Within the consumer sector, the firm focuses on: financial products, gaming/lodging, interactive market services, lifestyles/sports retailers, restaurants and hardlines and softlines retailing. TWP's global energy research is provided by analysts in three countries and covers the following trends: (1) fast-growing oil and natural gas producers in North America and worldwide (2) domestic and international energy service companies and (3) alternative energy technology and resource developers. Within the healthcare sector, TWP focuses on: biotechnology, diagnostics, healthcare information technology, pharmaceutical services, life science technology, medical devices and specialty pharmaceuticals. The firm's interest in the Internet, media and telecommunications sector include: Internet services, media, broadcasting and telecommunications services. Their focus within the metals and mining sector include: base metals, gold, precious metals and uranium. TWP's technology research focuses on: (1) applied technologies (2) communications components (3) core and wireless communications equipment (4) IP networking communications equipment (5) electronic supply chain (6) enterprise hardware (7) information and financial technology services (8) semiconductor capital equipment (9) broadline and specialty semiconductors (10) applications and communications software and (11) infrastructure software. TWP also provides value-added equities analysis across a variety of sectors including: industrials, financials, consumer, technology and healthcare.

A subsidiary of Lehman Brothers Holdings, Inc., Lehman Brothers, Inc. is a broker/dealer headquartered in New York City. They provide global equity and fixed research. The equity research department covers more than 100 sectors. They use a fundamental, quantitative, strategic and tactical research approach. In addition to these Lehman has also developed special products, such as 10 uncommon values and 10 uncommon eurovalues.

Shaw Industries, Inc. produces and sells carpets, rugs, ceramic, hardwood, and laminate flooring. It also offers carpet tile, commercial hard surface, vinyl, tiles and stones. The company was founded by Robert E. Shaw in 1946 and is headquartered in Dalton, GA.

Pontem Corp. is a blank check company. It engages in the business of effecting a merger, share exchange, asset acquisition, share purchase, reorganization, or similar business combination with one or more businesses. The company was founded on October 15, 2020 and is headquartered in The Woodlands, TX.