IPO Profile: Marinus Pharmaceuticals Inc

Company Details

Location: 142 Temple Street, New Haven, Connecticut 06510

Phone: (203) 315-0566

Website: http://www.marinuspharma.com

Business Description: Marinus Pharmaceuticals, Inc. is a pharmaceutical company

Investment & Return Details

VC backers: Canaan Partners, Domain Associates LLC, Foundation Medical Partners LP, Rossiyskaya Korporatsiya Nanotekhnologiy GK, Sofinnova Ventures Inc

Investment Dates: 09/30/2005, 04/10/2009, 12/03/2012, 01/07/2013, 06/27/2013

Total Funding To Date (USD Mil): $81.15

Value of VCs’ shares at IPO price (USD Mil): $372.93

Total return to VCs at IPO price: 4.59x

Shares Beneficially owned by VCs at Offering:

• Canaan Partners: 11,936,589
• Domain Associates LLC: 13,758,485
• Foundation Medical Partners LP: 3,806,272
• Rossiyskaya Korporatsiya Nanotekhnologiy GK: 8,176,802
• Sofinnova Ventures Inc: 8,938,572
• Total: 46,616,720

Value of VC shares at IPO price (USD Mil):

• Canaan Partners: $95.49
• Domain Associates LLC: $110.07
• Foundation Medical Partners LP: $30.45
• Rossiyskaya Korporatsiya Nanotekhnologiy GK: $65.41
• Sofinnova Ventures Inc: $71.5
• Total: $372.93

IPO Details

Primary Exchange: Nasdaq

Ticker: MRNS

Time to Exit (Years): 8.8

Date Filed: 05/12/2014

Date Issued: 07/31/2014

Offer Price (USD): $8.00

First Day Closing Price (USD): $8.00

No. of Shares Offered + Overallot Sold All Mkts: 5,625,000

Proceeds Amt + Overallot Sold All Markets (USD Mil): $45.00

Post Offer Value (USD Mil): $110.87

Issuer’s Legal Advisor: Duane Morris LLP

Book Runner: JMP Securities LLC, Stifel Nicolaus & Co Inc

Co-Managers: Janney Montgomery Scott LLC

Source: Thomson Reuters and company prospectus