AsOf

Regeneron Pharmaceuticals · CEOLeonard S. Schleifer

valid: Two independent sources agree, or a primary source states it: the record asserts this claim.asserted

What the statuses mean

Valid from
1988-01-01
Valid until
still holds
Published
2026-04-24
Recorded by AsOf
2026-11-08
Checked
2026-11-08 · its source page states the value and the date
Confidence
0.95

Sources

“Leonard S. Schleifer, M.D., Ph.D., 73, founded the Company in 1988 and has been a director and its President and Chief Executive Officer since its inception.”— what the page says, read 2026-11-08

Cite this claim

Each form names the value, its as-of date (1988-01-01), the day you read it (2026-11-09), the claim's stable URL and id and its primary source. The URL never changes: a superseded claim stays at the same address.

Plain text
AsOf. "Regeneron Pharmaceuticals ceo: Leonard S. Schleifer", as of 1988-01-01. Claim clm_31DC6D4DC56C, https://asof.is/claim/clm_31DC6D4DC56C, accessed 2026-11-09. Source: https://www.sec.gov/Archives/edgar/data/872589/000130817926000340/regn-20260424.htm.
APA
AsOf. (1988). Regeneron Pharmaceuticals ceo: Leonard S. Schleifer (as of 1988-01-01) [Record clm_31DC6D4DC56C]. Retrieved November 9, 2026, from https://asof.is/claim/clm_31DC6D4DC56C (source: https://www.sec.gov/Archives/edgar/data/872589/000130817926000340/regn-20260424.htm)
BibTeX
@misc{asof_clm_31DC6D4DC56C,
  author = {AsOf},
  title = {Regeneron Pharmaceuticals ceo: Leonard S. Schleifer},
  year = {1988},
  howpublished = {\url{https://asof.is/claim/clm_31DC6D4DC56C}},
  note = {Claim clm\_31DC6D4DC56C, as of 1988-01-01; source: https://www.sec.gov/Archives/edgar/data/872589/000130817926000340/regn-20260424.htm},
  urldate = {2026-11-09}
}

On the record

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