Natasha Leskovsek

Of Counsel
Full contact info

I’ve taken my clinical and consulting experience for pharma and biotech companies on regulatory issues and brought them to Cooley’s clients.

Passions

Providing practical compliance solutions at the intersection of science and regulation

Experience

Caris Life Sciences Announces $494 Million IPO

June 20, 2025

Cooley advised the underwriters of Caris Life Sciences, a patient-centric, next-generation artificial intelligence techbio company and precision medicine pioneer, in connection with Caris’ $494 million initial public offering (IPO).

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Eric Blanchard
Partner, Boston
Div Gupta
Partner, New York
Charlie Kim
Partner, San Diego
Minkyu Park
Special Counsel, New York
Mark Ballantyne
Partner, Reston
Ariane A. Andrade
Partner, Chicago
Shamis Beckley
Partner, Boston
Caitlin Courtney
Partner, Palo Alto
Annie Froehlich
Partner, Washington, DC
Daniel Grooms
Partner, Washington, DC
Jonie Ing Kondracki
Partner, San Francisco
Phil Mitchell
Partner, New York
Sonia Nath
Partner, Washington, DC
Gerard O'Shea
Partner, New York
Tracy Rubin
Partner, Palo Alto
Francis Wheeler
Senior Counsel, Colorado
Son Nguyen
Special Counsel, Washington, DC
Randy Sabett
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
William Corcoran
Of Counsel, Boston
Natasha Leskovsek
Of Counsel, Washington, DC
Trevor Bossi
Associate, Boston
Cara Buchicchio
Associate, New York
Eric J. Delgado
Associate, New York
Matthew Iannone
Associate, New York
Wyatt Kernell
Associate, Colorado
Allison Kutner
Associate, New York
Calvin Lee
Associate, New York
Amiti C. Rothstein
Associate, New York
Dr. Jason Valentine
Associate, Washington, DC
Margaux Arntson
Associate

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Philochem AG Announces up to $1.35 Billion License Agreement With RayzeBio

June 10, 2025

Cooley advised Philochem AG, a wholly owned subsidiary of the Philogen Group (Milan Stock Exchange: PHIL), on its definitive license agreement with RayzeBio, a wholly owned subsidiary of Bristol Myers Squibb (NYSE: BMY), granting RayzeBio exclusive worldwide rights to develop, manufacture and commercialize OncoACP3, a clinical-stage therapeutic and diagnostic agent targeting prostate cancer.

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Related contacts

Kenneth Krisko
Partner, Reston
Joe Sandys
Special Counsel, London
Alexandra Paterson
Associate, London
Joseph Perry
Associate, Reston
J. Brian Stalter
Special Counsel, New York
Aaron Pomeroy
Partner, Colorado
Amanda Pacheco
Associate, Palo Alto
David Burns
Special Counsel, Washington, DC
Megan Browdie
Partner, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Ann Bevitt
Partner, London
Rachel Thorn
Of counsel, New York
Dr. Jon Cousin
Partner, Washington, DC

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BioNTech Announces Global Collaboration Agreement With Bristol Myers Squibb

June 3, 2025

Cooley advised BioNTech SE, a global biotechnology company pioneering next-generation immunotherapies, on its global co-development and co-commercialization collaboration agreement with Bristol Myers Squibb for BioNTech’s antibody candidate BNT327. The transaction includes a $1.5 billion upfront payment and $2 billion total in noncontingent anniversary payments through 2028.

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Related contacts

Kenneth Krisko
Partner, Reston
J. Brian Stalter
Special Counsel, New York
John Forrest
Associate, Boston
Arda Can Tekin
Associate, New York
Megan Browdie
Partner, Washington, DC
David Burns
Special Counsel, Washington, DC
Jonas Koponen
Partner, Brussels
Rachel Thorn
Of counsel, New York
Eric Blanchard
Partner, Boston
Christopher Kimball
Partner, Washington, DC
Joe Sandys
Special Counsel, London
Natasha Leskovsek
Of Counsel, Washington, DC
Navya Dasari
Associate, New York
Douglas Lyles
Senior Research Services & Access Analyst

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SiteOne Therapeutics to Be Acquired by Eli Lilly for up to $1 Billion

May 28, 2025

Cooley advised SiteOne Therapeutics, a private biotechnology company developing small molecule inhibitors of sodium channels to treat pain and other neuronal hyperexcitability disorders, on its acquisition by Eli Lilly.

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Laura Berezin
Partner, Seattle
Sara Semnani
Partner, Santa Monica
Rowook Park
Partner, San Diego
Charity Williams
Partner, San Diego
Rena Kaminsky
Special Counsel, Palo Alto
Todd Gluth
Partner, San Diego
Lila Hope
Partner, Palo Alto
Noel Ripberger-Scheick
Associate, Palo Alto
Tucker Cochenour
Associate, Palo Alto
Kristin O'Hanlon
Special Counsel, San Francisco
David Fletcher
Partner, Washington, DC
Jamie Leigh
Partner, San Francisco
Carly Mitchell
Partner, Washington, DC
Jeremy Morrison
Partner, Washington, DC
Gerard O'Shea
Partner, New York
Marty Schenker
Senior Counsel , San Francisco
Chen Chen
Special Counsel, Palo Alto
Andrew Epstein
Special Counsel, Seattle
Karen Tsai
Special Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Selin Akkan
Associate, Palo Alto
Mari Dugas
Associate, Washington, DC
Virat Gupta
Associate, Washington, DC
Joseph J. Kim
Associate, Palo Alto
Eileen Leman
Associate, Los Angeles
Ehijele Olumese
Associate, Santa Monica
Joseph Perry
Associate, Reston
Hannah Rausch
Associate, New York
Melody Van Horn
Senior Paralegal, Palo Alto

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Blue Owl Capital Invests up to $262.5 Million in ITM Isotope Technologies Munich SE

May 27, 2025

Cooley advised Blue Owl Capital (NYSE: OWL), an asset manager redefining alternatives, on an up to $262.5 million term loan facility for ITM Isotope Technologies Munich SE, a radiopharmaceutical biotech company dedicated to providing a new generation of radiopharmaceutical therapeutics and diagnostics for hard-to-treat tumors.

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Related contacts

Michael Tollini
Partner, Washington, DC
Addison Pierce
Partner, Chicago
Dr. Jon Cousin
Partner, Washington, DC
Geoffrey Spolyar
Partner, Boston
Xander Lee
Partner, Santa Monica
Phil Mitchell
Partner, New York
Steve Flores
Partner, Chicago
Susan Piascik Christoff
Special Counsel, Washington, DC
Randy Sabett
Special Counsel, Washington, DC
Karen Tsai
Special Counsel, Washington, DC
Natasha Leskovsek
Of Counsel, Washington, DC
Wyatt Kernell
Associate, Colorado
Matt Kong
Associate, San Francisco
Dr. Asako Kubota
Associate, Washington, DC
Allison Kutner
Associate, New York
Amanda Pacheco
Associate, Palo Alto
Charles A. Watkins II
Associate, Santa Monica
Jennifer Fitzpatrick
Paralegal Specialist, Washington, DC
Margie Murphy
Paralegal Specialist, New York
Larry Teague
Patent Agent, Seattle

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Food and Drug Law Institute