On December 6, 2018, Mallinckrodt plc (NYSE: MNK) announced plans for the separation of its Specialty Generics business, to be named Mallinckrodt Inc., in a tax-free spin-off to shareholders. The transaction is expected to be completed in 2H 2019, subject to several conditions, including Form 10 effectiveness. The Specialty Generics business will retain the Mallinckrodt corporate name, while the parent company will adopt a new corporate moniker, Sonorant Therapeutics Inc. Following the separation, Mallinckrodt will focus on specialty generic products and active pharmaceutical ingredient (API) manufacturing, while the parent company will focus on “innovative specialty pharmaceutical brands.”
MNK’s generics business, which is to be based in St. Louis, MO, largely manufactures opioid drugs. The post-spin company will include a leading acetaminophen business, as well as a portfolio of API and generic finished-dose forms of controlled substances and other drugs. Additionally, the generics business will include the company’s laxative product, Amitiza (acquired in its $1.2 billion purchase of Sucampo in 2014), and a strong U.S. manufacturing footprint. The new generics business is expected to launch up to five new products in 2019. In 2018, the business reported revenue of $909 million.
Since 2016, Mallinckrodt has explored the sale of its generics business as a means of shifting the business toward higher-margin branded drugs. Despite the formidable size of the generics business, it has experienced a decline in recent years, particularly because many of its products are opioid-based painkillers, which have fallen out of favor with prescribers. For 2018, consolidated revenue of $3.2 billion was essentially flat. However, the company is facing a number of opioid-related lawsuits and is expected to experience a continued revenue decline due to falling generics prices. It should be noted that the generics business has been up for sale since late 2016 and has had two possible buyers express interest, according to industry media reports, but talks were ultimately unsuccessful.
The post-spin parent, Sonorant Therapeutics, will become a specialty pharmaceutical brands company and will focus on its portfolio of marketed and development products. The company will be led by current president and chief executive officer Mark Trudeau.
MNK currently trades at 5.7x consensus 2019E EBITDA, a significant discount to specialty pharmaceutical peers (which trade between 10x and 16x), owing to several headwinds, including: (1) declining Acthar sales, driven by payer pressure in the near term and by brand competitors expected to reach the market in 2021; (2) a combination of loss of exclusivity and brand competition in 2020-2021, particularly with the genericization of INOmax in 2020; and (3) pipeline programs that either target niche markets and/or have not yet demonstrated clinical efficacy.
At $16 currently, MNK shares are trading at one fifth of the 2015 peak of $134. In our view, shares of both post-spin companies will likely remain under pressure owing to several headwinds, and as such, we do not view the spin as a value-unlocking event. In addition, we see potential downside risk to revenue and earnings for both companies over the next 12 months. For Sonorant Therapeutics, competitor overhangs on the Acthar and INOmax franchises, which collectively accounted for over 70% of post-spin revenues, remain a primary concern. We expect a marginal revenue and earnings contribution from pipeline programs, given that terlipressin, inhaled xenon gas, OCR-002, and CPP-1x/sulindac lack strong clinical validation. For post-spin Mallinckrodt, pricing pressure in generics, coupled with opioid-related litigation risk remain key overhangs. Based on an analysis of revenue growth and EBITDA, we arrive at a pre-spin sum-of-the-parts fair value estimate of $17 for MNK. Post spin, Mallinckrodt and Sonorant are estimated to trade at enterprise values of $5.0 billion and $1.6 billion, respectively. Note, however, that final distribution ratio and capitalization have not been announced as of this writing; although management has noted that this will be a “levered spin.” For the purposes of this analysis, we assume $1.3 billion in debt is transferred to Mallinckrodt (approximately 5x 2020E EBITDA), which generates post-spin fair value estimates of $14 and $3 for Sonorant and Mallinckrodt, respectively. We note, however, that post-spin fair value estimates are subject to revision as more information on post-spin capitalization becomes available. With the pre-spin valuation approximating the current share price ($16 as of this writing), and the potential for several downside risks to revenues and earnings for both-post-spin companies over the next several months, pre-spin MNK shares are not recommended for purchase.