Kevin Tang is on a hot streak.
Concentra Biosciences, the shell company from his hedge fund Tang Capital, has secured its fourth buyout of a struggling biotech so far in 2025.
This time, Concentra is taking out IGM Biosciences, the California biotech that had once inked a $6 billion biobucks pact with Sanofi but saw that deal
halved in 2024
, its
oncology ambitions wither
, and its pivot to autoimmune diseases
short-lived
.
The move for IGM comes after Concentra’s successful takeouts of
Elevation Oncology
,
Kronos Bio
and
Allakos
. It
did not succeed
on Acelyrin, though, as the California immunology drug developer stuck to its
merger with Alumis
.
The buyouts have taken place amid a surge in restructurings and shutterings in the biotech industry, as many companies have had to pull back on their ambitions due to dwindling investor support and/or clinical setbacks.
For IGM, the deal concludes a nearly six-month process.
After devoting just a few months to an autoimmune disease turnaround attempt, IGM
flashed the red lights
in early January, saying it would let go of most of its staff and search for strategic alternatives.
Now, the Mountain View-based biotech
said
it’s exiting to Concentra for $1.24 per share
$IGMS
in cash. The company’s stock price was up about 16% in early Tuesday trading, slightly surpassing the buyout price.
IGM’s board “unanimously determined” that the Concentra deal is “in the best interests of all IGM Biosciences stockholders,” per a Tuesday release.
The company said the deal comes with the right to get 100% of the closing net cash in excess of $82 million. The company had
$183.8 million
in cash and investments at the end of 2024.
Shareholders could also get 80% of the net proceeds from any sale of IGM’s product candidates and IP within one year post-closing.
According to an SEC
filing
, these assets have the potential to be offloaded: