Nathaniel Horwitz

Nathaniel Horwitz
Alma materHarvard University (AB)
OccupationsJournalist
Investor
Known forMayday Health
Hunterbrook
Parents

Nathaniel Horwitz is an Australian-American investor, entrepreneur, and investigative journalist. He is the co-founder of Mayday Health and Hunterbrook, where he is CEO.

Early life and education

Horwitz was born in Washington D.C. to Tony Horwitz and Geraldine Brooks, the elder of two sons.[1] The family split time between Sydney, Massachusetts, and Virginia.[2][3]

As a student, Horwitz worked on biotech startups.[4][5] While at Harvard, Horwitz met Sam Koppelman, with whom he would later found Mayday Health and Hunterbrook.[6][7]

Career

After graduating from Harvard, Horwitz joined RA Capital Management, a healthcare-focused investment firm.[8] While at RA Capital, Horwitz launched biotech companies.[9] He left RA Capital in 2023, before founding Hunterbrook.[10]

In 2022 Horwitz co-founded Mayday Health with Koppelman and Liv Raisner.[11] The 501(c)(3) nonprofit educates on abortion access and advocated for laws to shield healthcare providers who send abortion medicine to people in states with abortion bans.[12]

In 2023, Horwitz and Koppelman founded Hunterbrook, an investment fund and investigative journalism outlet,[13][14] with Horwitz as CEO. Hunterbrook later $100 million in 2024 "to make trades based on articles by its affiliated newsroom".[15][16] The company's name is partially derived from Horwitz's mother's last name.[17]

References

  1. ^ Brooks, Geraldine (2023-03-10). "I have two sons and love them equally. But my homeland does not". The Sydney Morning Herald. Retrieved 2025-10-10.
  2. ^ Duguid, Kate; Franklin, Joshua (2024-04-03). "News-powered hedge fund raises $100m to trade on reporters' scoops". Australian Financial Review. Retrieved 2025-10-10.
  3. ^ PhD, Allison Rosenzweig (2019-02-25). "What a Researcher Learned Developing a New Drug for Pancreatic Cancer". Pancreatic Cancer Action Network. Retrieved 2025-10-30.
  4. ^ "Bringing breakthroughs to life". seas.harvard.edu. Retrieved 2025-08-22.
  5. ^ Daso, Frederick. "Two Harvard Biotech Entrepreneurs Are Creating The "Trojan Horse" Of Cancer Treatment". Forbes. Retrieved 2025-10-10.
  6. ^ Malone, Clare (2024-05-02). "Is Hunterbrook Media a News Outlet or a Hedge Fund?". The New Yorker. ISSN 0028-792X. Retrieved 2025-08-22.
  7. ^ "A new kind of activist journalism: Hunterbrook investigates corporations (and hopes to make bank trading off its reporting)". Nieman Lab. Archived from the original on 2025-09-17. Retrieved 2025-10-10.
  8. ^ Primack, Dan (2023-11-02). "New hedge fund is hiring journalists to not do journalism". Axios. Retrieved 2025-10-10.
  9. ^ "Mayday in America". Unitarian Universalist Society of Martha's Vineyard. 2022-08-09. Retrieved 2025-08-22.
  10. ^ "The Big Bet — $100 Million — To Make Journalism Profitable Again". The New York Sun. 2024-04-11. Retrieved 2025-10-10.
  11. ^ Alter, Charlotte. "This Group Wants to Teach You How to Get Abortions Even Where They're Banned". TIME. Archived from the original on 2025-09-29. Retrieved 2025-10-10.
  12. ^ Aymond, Natalie (2022-08-17). "Mayday, mayday, mayday: Abortion pills to the rescue". The Martha's Vineyard Times. Retrieved 2025-08-22.
  13. ^ Sachs, Matt LevineMatt Levine is a Bloomberg Opinion columnist A. former investment banker at Goldman; Mergers, He Was a; Wachtell, acquisitions lawyer at; Lipton; Rosen; Circuit, Katz; a clerk for the U. S. Court of Appeals for the 3rd; Dealbreaker, an editor of (2024-04-02). "A Hedge Fund That's Also a Newspaper". Bloomberg.com. Retrieved 2025-10-10. {{cite news}}: |first7= has generic name (help)CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
  14. ^ "Client Challenge". www.ft.com. Retrieved 2025-10-10.
  15. ^ "This Hedge Fund Wants to Save Investigative Journalism — By Using It to Game the Market". POLITICO. 2024-05-25. Retrieved 2025-08-22.
  16. ^ "Client Challenge". www.ft.com. Retrieved 2025-08-22.
  17. ^ Malone, Clare (2024-05-02). "Is Hunterbrook Media a News Outlet or a Hedge Fund?". The New Yorker. ISSN 0028-792X. Retrieved 2025-08-22.