# clm_221AA18ED39E

subject: Merck & Co. (/record/merck.md)  
predicate: board_member  
value: Kathy J. Warden  
valid_from: 2020-03-16  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-08  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-10  
cite: AsOf. "Merck & Co. board member: Kathy J. Warden", as of 2020-03-16. Claim clm_221AA18ED39E, https://asof.is/claim/clm_221AA18ED39E, accessed 2026-11-11. Source: https://www.sec.gov/Archives/edgar/data/310158/000110465920009359/tm206170d1_ex99-1.htm.  
checked: 2026-11-10 · its source page states the value and the date  

> Kathy J. Warden, chairman, chief executive officer and president, Northrop Grumman Corporation, will join the company’s Board of Directors effective March 16, 2020.

What https://www.sec.gov/Archives/edgar/data/310158/000110465920009359/tm206170d1_ex99-1.htm says, word for word.

## Sources

- https://www.wikidata.org/wiki/Q247489 (secondary, Wikidata)
- https://www.sec.gov/Archives/edgar/data/310158/000110465920009359/tm206170d1_ex99-1.htm (primary)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.
