Zac Costello

Managing Director, Head of Syndicate

Zac has over 15 years of Wall Street experience across Capital Markets and Sales & Trading. Prior to joining CCM, Zac worked on the Private Placements team within Equity Capital Markets at Citigroup, helping private companies raise money across the capital structure. Prior to that, Zac was a deal captain on the Syndicate desk responsible for executing IPOs, follow-ons, convertible notes, PIPEs and block trades, and he also advised on SPAC transactions. Additionally, Zac helped spearhead the international syndicate effort, marketing deals from around the globe to NAM investors. Before joining Equity Capital Markets, Zac worked as a salestrader in Delta One and Securities Lending.

Zac holds an MBA from New York University's Leonard N. Stern School of Business and a BA in Economics from the University of Pennsylvania. Zac lives in New Jersey with his wife and two children.

Select Transactions

  • Bleichroeder Acquisition Corp III logo with text indicating a $345 million IPO and sole bookrunner

  • Viking Acquisition Corp II logo with a sailboat icon, text indicating a $230 million IPO, and the phrase 'Sole Bookrunner'.

  • Texas Ventures IV logo with text detailing a $172.5 million IPO and mentioning a sole Bookrunner.

  • Text announcing Yorkville International Capital Corp. IPO raising $200 million, sole bookrunner

  • Logo of Keystone Acquisition Corp with a gold trophy icon, text indicating a $287.5 million IPO, and the position of lead left bookrunner.

  • Logo of Energy Transition Special Opportunities with text indicating $150 million IPO and sole bookrunner.

  • Logo of RRE Ventures Acquisition Corp. with text '$250M IPO Lead Bookrunner'.

  • Logo and text announcing Metals Acquisition Corp. II's $230 million IPO with the lead bookrunner.

  • Kensington Capital Acquisition Corp. VI logo with event details of a $230 million IPO and Lead Left Bookrunner.

  • Logo of Armada Acquisition Corp. III featuring a blue and gray sailing ship with text indicating a $225 million IPO for a lead left bookrunner.

  • Logo of Columbus Circle Capital II with a 230 million dollar IPO announcement and mentions the lead left bookrunner.

  • Announcement for Spring Valley IV's $230 million IPO, hiring a lead left bookrunner, with a logo featuring a blue and green swirl and the company name.

  • Hennessy Capital VII logo with a green shield featuring a white goat and crosses, along with text indicating a $241.5 million IPO and a lead bookrunner.

  • Logo of Iris Acquisition Corp II, an IPO of $168.5 million, with lead left bookrunner

  • Logo of MEVO, a globe icon, and text indicating a $300 million IPO for Lead Bookrunner by Global Acquisition Corp II.

  • Logo of Bleichroeder Acquisition Corp II, a blank check company, with text indicating a $287.5 million IPO and a lead bookrunner.

  • Black Spade Acquisition III logo with spade symbol, text about $150 million IPO and lead bookrunner.

  • Logo for Crane Harbor II Acquisition Corp., featuring a lighthouse, with text indicating a $345 million IPO and Lead Bookrunner.

  • Twelve Seas logo with text indicating a $172.5 million IPO and sole bookrunner.

  • Invest Green logo with a recycling symbol, tagline 'Clean Energy for the AI Revolution,' announcing a $172.5 million IPO by Sole Bookrunner.

  • Hall Chadwick logo with an upward check mark icon, text stating $207M IPO, and a title 'Lead Bookrunner'.

  • Announcement for Evolution Global Acquisition Corp's $240 million IPO, led by a bookrunner.

  • Logo and text announcing Taiwind Acquisition's $172.5 million IPO as the sole bookrunner.

  • Text about Viking Acquisition Corp., indicating a $200 million IPO and a lead bookrunner.

  • Logo of Dynamix III with a green and blue icon, and text indicating a $175 million IPO and lead bookrunner.

  • Insight Digital Partners II logo with IPO amount of $172.5 million and the title Lead Bookrunner.

  • A presentation slide displaying Apex Treasury Corporation's $344.7 million IPO and lead bookrunner

  • Logo of Lake Superior with text indicating a $115 million IPO for a sole bookrunner.

  • Information about BTC Development Corp., including a $253 million IPO and a lead left bookrunner.

  • GEMINI logo with a blue symbol and text indicating a $446 million IPO for Bookrunner.

  • Talon Capital logo, text indicating $249 million IPO, and a description of a Lead Left Bookrunner.

  • Spring Valley Acquisition III logo with text indicating a $230 million IPO and a lead left bookrunner.

  • Company name and details for CSLM Digital Asset Acquisition Corp III, Ltd., announcing a $200 million IPO with a sole bookrunner.

  • Proposal of business sale from Querétaro Futebol Club logo to Innovatio Capital with the title 'Exclusive Financial Advisor'.

  • Logo for A Paradise Acquisition Corp. announcing a $200 million IPO and sole bookrunner.

  • Logo of Bakkt, a headline reading '$75M Public Offering to Purchase Bitcoin,' an orange Bitcoin symbol, and the phrase 'Joint Bookrunner'

  • Summary of Axiom Intelligence Acquisition Corp 1 IPO details, including a $175 million size and lead left bookrunner.

  • Announcement of a merger between XCF Global Capital, Inc. and Focus Impact BH3 Acquisition Co. for a value of 1.8 billion dollars, with mention of the advisors involved.

  • A graphic with the logo 'TMTG' at the top, followed by text about a financial transaction involving PIPE and convertible note to launch Bitcoin Treasury, with a Bitcoin symbol, and ending with 'Joint Placement Agent'.

  • Text on a white background that reads: 'Cal Redwood Acquisition Corp. $230M IPO Lead Left Bookrunner'.

  • Logo of Armada Acquisition Corp. II featuring a blue and gray sailing ship, with text indicating a $230 million IPO for the Lead Left Bookrunner.

  • Logo of Columbus Circle Capital, announcing a $250 million IPO with lead left bookrunner.

  • Logo of EGH Acquisition Corp. announcing a $150 million IPO with the lead left bookrunner.

  • A promotional image for Berto Acquisition Corp. announcing a $300 million IPO with a lead left bookrunner, featuring a logo with blue swirl design.

  • Company logo or sign for Digital Asset Acquisition Corp. with text indicating $172.5 million IPO and role as lead left bookrunner.

  • Signboard indicating Real Asset Acquisition Corp., an IPO of $172.5 million, with a note about the lead left bookrunner.

  • Craneharbor Acquisition Corp announced a $220 million IPO for a Lead Left Bookrunner.

  • Logo of Texas Ventures with an upward arrow design, text reads '$225M IPO Lead Left Bookrunner'

  • Logo of SK Growth Opportunities, merger announcement with Webull, valuing the deal at $4.7 billion, describing SK as an exclusive financial and capital markets advisor.

  • Announcement of merger between USA Rare Earth and Infection Point II, highlighting a $903M EV / $50M pipe, with roles in financial advising and placement.

  • Maywood logo with red three-stripe icon, announces $75 million IPO for Lead Left Bookrunner.

  • Critical Metals Corp logo and information about a $25 million pipe for a joint placement agent.

  • Hennessy Capital VII IPO announcement with logo and details about the offering, including lead left bookrunner.

  • Logo of Plum Partners with a green leaf above the 'p', and text indicating Plum Acquisition Corp. IV's IPO of $172.5 million for a Lead Left Bookrunner.

  • Logo of Freedom Fact II Acquisition Corporation, announcing a $175 million IPO with a lead left bookrunner.

  • Dynamix logo with $150 million IPO and lead left bookrunner text.

  • Text announcing Bleichoeder Acquisition Corp. I, an IPO of $250 million, with lead left bookrunner.

  • Announcement for Black Spade Acquisition II with a $150 million IPO, listed on Bookrunner.

  • Logo of Melar with text indicating a $150 million IPO and a lead left bookrunner.

  • A logo with Chinese characters and the word 'Chenghe' below in a blue square, below which is text indicating a $75 million IPO for a Lead Left Bookrunner.

  • Logo of a purple 'nu' with text below reading '$2.6B IPO Bookrunner' and smaller text at the bottom saying '*Transaction completed at prior firm'.

  • Black Rifle Coffee Company logo with text indicating a $1.7 billion enterprise value, SPAC advisory, and Buyside Advisor, with a note about transaction completion at prior firm.

  • CIT logo in red and blue with the text '$200M IPO Bookrunner' below, on a light gray background, indicating a financial achievement or announcement.

  • Announcement about Envisics private placement, $100 million+ Series C, sole placement agent, completed at prior firm.

  • Ecovyst logo with a green and blue globe graphic, showing a secondary offering of $76 million for a joint lead bookrunner, with about a note that the transaction was completed at a prior firm.

  • Mosaic Insurance logo with colorful geometric globe, text indicating undisclosed price, private placement, sole placement agent, and a note about prior firm transaction