Merrimack Reports Full Year 2023 Financial Results

Merrimack Pharmaceuticals, Inc. (Nasdaq: MACK) (“Merrimack” or the “Company”) today announced its full year 2023 financial results for the period ended December 31, 2023.

“As Ipsen reported in February, the U.S. Food and Drug Administration has approved the supplemental new drug application for Onivyde (irinotecan liposome injection) plus 5 fluorouracil/leucovorin and oxaliplatin (NALIRIFOX) as a first-line treatment for people living with metastatic pancreatic ductal adenocarcinoma (mPDAC),” said Gary Crocker, CEO and Chairman of Merrimack’s Board of Directors. “This approval triggers a $225 million payment which is due from Ipsen to Merrimack before the end of March. We expect to hold a special meeting of stockholders to approve a Plan of Dissolution and a liquidating dividend payable to stockholders. We currently anticipate the initial liquidating dividend to be in the range of between approximately $14.65 and $15.35 per share.”

Full Year 2023 Financial Results

Merrimack reported net loss of $1.2 million for the year ended December 31, 2023, or $0.08 per basic share, compared to a net loss of $1.5 million, or $0.11 per basic share, for the same period in 2022.

Merrimack reported a gain on sale of assets for the year ended December 31, 2023, of $0.1 million compared to $0.4 million for the same period in 2022.

General and administrative expenses for the year ended December 31, 2023 were $2.2 million, compared to $2.2 million for the same period in 2022.

As of December 31, 2023, Merrimack had cash, cash equivalents and short-term investments of $18.9 million, compared to $19.4 million as of December 31, 2022.

As of December 31, 2023, Merrimack had 14.4 million shares of common stock outstanding.

Updates on Programs Underlying Potential Milestone Payments and Planned Dissolution

On February 13, 2024, we announced that Ipsen S.A. announced it had received approval from the U.S. Food and Drug Administration, or FDA, to market ONIVYDE as a first-line treatment of metastatic adenocarcinoma on the pancreas. As a result of this approval by the FDA, we are entitled to receive a $225 million milestone payment from Ipsen, which is expected to be received by the end of March 2024.

Merrimack’s Board of Directors has evaluated the likelihood of receiving additional milestone payments under the Ipsen Agreement and from the 2019 Agreement with Elevation Oncology and has concluded that it is unlikely that any additional milestone payments from either agreement will become payable. The Plan of Dissolution will include establishment of a liquidating trust for the benefit of stockholders in the unlikely event that Merrimack might receive any future milestone payments from Ipsen or Elevation Technology.