Nathaniel Horwitz

  1. Home
  2. Wiki
Nathaniel Horwitz
Alma materHarvard University (AB)
Occupation(s)Journalist
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. He was previously a partner at RA Capital Management.

Early life and education

[edit]

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]

He graduated from Harvard University with a degree in molecular and cellular biology.[4] As a student, Horwitz wrote for The Harvard Crimson and worked on biotech startups.[5][6][7][8] He published biomedical research in the scientific journal Cell.[9][10] While at Harvard, Horwitz met Sam Koppelman, with whom he would later found Mayday Health and Hunterbrook.[11][12]

Career

[edit]

After graduating from Harvard, Horwitz joined RA Capital Management, a healthcare-focused investment firm.[13] While at RA Capital, Horwitz launched biotech companies.[14] He left RA Capital in 2023, before founding Hunterbrook.[15] He has written in The Washington Post, The Atlantic, The Daily Beast, Town & Country, and The Australian Financial Review.[16][17][18][19][20]

Mayday Health

[edit]

In 2022, before the Supreme Court's decision in Dobbs v. Jackson overturned Roe v. Wade, Horwitz co-founded Mayday Health with Koppelman and Liv Raisner.[21] 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.[22][23] Horwitz volunteered as CEO then moved to executive chair.[24][25]

Hunterbrook

[edit]

In 2023, Horwitz and Koppelman founded Hunterbrook, an investment fund, litigation firm, and investigative journalism outlet.[26][27] Horwitz became CEO of both Hunterbrook Media and Hunterbrook Capital, which raised $100 million upon its launch.[28][29] The company's name is partially derived from Horwitz's mother's last name.[30]

Personal life

[edit]

Horwitz lives in New York.[31]

References

[edit]
  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. ^ Horwitz, Nathaniel (2014-08-27). "Nathaniel Brooks Horwitz". The Martha's Vineyard Times. Retrieved 2025-08-22.
  5. ^ "Nathaniel B. Horwitz | Writer Page | The Harvard Crimson". www.thecrimson.com. Retrieved 2025-08-22.
  6. ^ "Bringing breakthroughs to life". seas.harvard.edu. Retrieved 2025-08-22.
  7. ^ "Why We Won't Punch | Opinion | The Harvard Crimson". www.thecrimson.com. Retrieved 2025-10-10.
  8. ^ Daso, Frederick. "Two Harvard Biotech Entrepreneurs Are Creating The "Trojan Horse" Of Cancer Treatment". Forbes. Retrieved 2025-10-10.
  9. ^ Yu, Haojie; Rimbert, Antoine; Palmer, Alice E.; Toyohara, Takafumi; Xia, Yulei; Xia, Fang; Ferreira, Leonardo M. R.; Chen, Zhifen; Chen, Tao; Loaiza, Natalia; Horwitz, Nathaniel Brooks; Kacergis, Michael C.; Zhao, Liping; Soukas, Alexander A.; Kuivenhoven, Jan Albert (2019-11-27). "GPR146 Deficiency Protects against Hypercholesterolemia and Atherosclerosis". Cell. 179 (6): 1276–1288.e14. doi:10.1016/j.cell.2019.10.034. ISSN 0092-8674. PMC 6889877. PMID 31778654.
  10. ^ "Nivien's Shot". www.science.org. Retrieved 2025-10-10.
  11. ^ 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.
  12. ^ "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.
  13. ^ Primack, Dan (2023-11-02). "New hedge fund is hiring journalists to not do journalism". Axios. Retrieved 2025-10-10.
  14. ^ "Mayday in America". Unitarian Universalist Society of Martha's Vineyard. 2022-08-09. Retrieved 2025-08-22.
  15. ^ "The Big Bet — $100 Million — To Make Journalism Profitable Again". The New York Sun. 2024-04-11. Retrieved 2025-10-10.
  16. ^ "Here's what happened when I tried to develop a new drug for a deadly cancer". The Washington Post. 2019-01-11. ISSN 0190-8286. Retrieved 2025-10-10.
  17. ^ "The Next Frontier of the War on Cancer". The Daily Beast. 2018-02-21. Retrieved 2025-10-10.
  18. ^ Horwitz, Nathaniel Brooks (2019-01-25). "I tried to develop a new drug for a deadly cancer". Australian Financial Review. Retrieved 2025-10-10.
  19. ^ "Nathaniel Brooks Horwitz". Town & Country. Retrieved 2025-10-10.
  20. ^ "Readers Discuss Extreme Drug Prices—And What to Do About Them". The Atlantic. 2019-04-01. Retrieved 2025-10-10.
  21. ^ 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.
  22. ^ Aymond, Natalie (2022-08-17). "Mayday, mayday, mayday: Abortion pills to the rescue". The Martha's Vineyard Times. Retrieved 2025-08-22.
  23. ^ "Don't mess with us, Texas - The Boston Globe". BostonGlobe.com. Retrieved 2025-10-10.
  24. ^ "Team". HUNTERBROOK. Retrieved 2025-08-22.
  25. ^ McKenna, Jenifer (2025-03-27). "Mobile Billboard Parks Outside Fake Abortion Clinics to Expose Lies and Protect Would-Be Patients". Ms. Magazine. Retrieved 2025-10-10.
  26. ^ 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)
  27. ^ "Client Challenge". www.ft.com. Retrieved 2025-10-10.
  28. ^ "This Hedge Fund Wants to Save Investigative Journalism — By Using It to Game the Market". POLITICO. 2024-05-25. Retrieved 2025-08-22.
  29. ^ "Client Challenge". www.ft.com. Retrieved 2025-08-22.
  30. ^ 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.
  31. ^ "This Hedge Fund Wants to Save Investigative Journalism — By Using It to Game the Market". POLITICO. 2024-05-25. Retrieved 2025-08-22.