Elevation Oncology (ELEV) (~$17MM market capitalization) is a clinical-stage biotech that until yesterday was pursuing the development of their lead therapeutic candidate, EO-3021, in a Phase 1 study for the treatment of gastric and gastroesophageal cancers. Due to a non-competitive risk-benefit analysis, Elevation is discontinuing development of EO-3021, implementing a 70% reduction-in-force and evaluating strategic options. If Elevation Oncology sounds familiar to some readers, they bought seribantumab and other assets from Merrimack Pharmaceuticals (formerly MACK, now a non-traded liquidating trust) in 2019 for a small upfront fee and some milestone payments. ELEV discontinued development of seribantumab in January 2023. After that failure, ELEV switched their focus to EO-3021, so this is the second swing and miss, seems time to formally waive the white flag and return cash to shareholders.
Somewhat frustratingly, ELEV is continuing pre-clinical development of EO-1022 with a planned IND in 2026, they're guiding to their cash balance lasting them into the second half of 2026. Hopefully this is just a cheap attempt to prove the remaining development pipeline has some value and not an attempt at a third swing at drug development. On the positive side, Kevin Tang owns 8% of ELEV, this is likely too small for a reverse merger (and it seems like reverse merger activity has slowed recently anyway), I would encourage management and the board to consider the likely incoming cash + CVR offer from Tang. It will probably be the best option. A $30MM loan paired with the cash burn and risk of going forward with EO-1022 make this one a little riskier than average.Friday, March 21, 2025
Wednesday, February 14, 2024
Merrimack Pharmaceuticals: Ipsen Milestone Achieved, Liquidation
Merrimack Pharmaceuticals (MACK) ($220MM market cap) is essentially a publicly traded CVR in a c-corp form, I owned the stock briefly in 2017 after the company sold Onivyde to Ipsen and committed to passing through any future milestone payments related to Onivyde to shareholders. Unfortunately, it didn't have the same protections of a CVR and management ended up diluting shareholders of those future milestone payments by raising equity to pursue their remaining development stage pipeline. In 2019, the company officially gave up development of new drugs, management was removed and it has been little more than a shell since as the company awaited any milestone payments from Ipsen.
Seven short years later, Ipsen announced that Onivyde was approved by the FDA for metastatic pancreatic ductal adenocarcinoma ("mPDAC"), a particularly awful form of pancreatic cancer. This approval triggers a $225MM milestone payment to Merrimack, the remaining milestones for Onivyde and another asset sale (to Elevation) are not expected to be reached. Merrimack waited little time to announce they were formally liquidating pending a shareholder vote in May, with the liquidation distribution range of $14.65 to $15.35/share.
We'll have to wait for the proxy to see how conservative this estimated range is, but to my eye, it looks pretty conservative, with the actual distribution likely to be at the top of the range or even just above. Below is my math, as usual, it might be wildly off (and any variance to these numbers can swing the expected IRR quite violently), I'm particularly wary of my tax estimate, any tax wizards out there please feel free to chime in below in the comment section.
The company has $215MM in NOLs which virtually matches the Ipsen windfall, but taxes are still due under section 453A of the IRS code, which in my novice read imposes an interest penalty on deferred sales like a milestone payment. The interest rate applicable has varied across the last 7 years, since I'm just a retail guy, I didn't build out a full model, but I think my number is roughly right, maybe a touch low. The $0.03 distribution is simply a 50% haircut of my estimated escrow amount to account for any expenses during the liquidating trust lifecycle.The board at MACK has been controlled by investors/owners since 2019, they've been prepping and preparing for this day since, I don't anticipate any large surprising expenses or much of an escrow. Congratulations to that team, I've followed at a short distance but never felt fully comfortable betting on an FDA approval.
Disclosure: I own shares of MACK
Friday, June 9, 2017
Merrimack Pharmaceuticals: Broken Biotech with CVR-like Optionality
So Merrimack sold their commercial business in Onivyde (along with a generic version of Doxil) to Ipsen (IPSEY) for $575MM in cash at closing, $33MM in near term milestone payments related to Onivyde sales through their licensing agreement with Shire (originally Baxalta), and up to $450MM in contingency payments based on additional regulatory approvals for Onivyde. Following the sale, the company's plan was return cash to shareholders via a special dividend, pay off most of their debt, and refocus the company as a development stage biotech again. The deal closed in early April, a $140MM special dividend was paid and their senior notes have been redeemed. Today the company's market cap is roughly $200MM, or about the same as net cash following the closing of the Onivyde sale and resulting special dividend.
Merrimack 2.0
The company will now have a few different shots on goal, to be clear, this is all very speculative at this point and I know very little about the chances of any of these milestones being reached or the drugs in their pipeline ever being approved and commercialized.
Merrimack's board of directors has committed to passing through to shareholders any payments received net of taxes related to the Ispen deal in the form of special dividends. In essence, these will function like contingent value right payments, but they're stapled together with the common shares and the company could go back on their word and find other uses for the cash in the future.
The three milestone payments are as follows:
- $225MM for FDA approval in first-line pancreatic cancer
- $150MM for FDA approval in small cell lung cancer
- $75MM for FDA approval in any third indication

