Weymouth Katharine — SEC Form 4 Insider Trading Activity
Summary
Updated Jul 16, 2026
Weymouth Katharine has filed 3 SEC Form 4 filings across 3 companies in the last 90 days — active on both sides. Lifetime open-market purchases: $50K. Lifetime open-market sales: $759K.
Profile
Katharine Weymouth is an American business executive and corporate director. Public SEC filings dated 2026-04-18 list her as a director for Graham Holdings Co., Xometry, Inc., and Republic Services, Inc. She is part of the Weymouth family, historically associated with Graham Holdings Company (the successor to The Washington Post Company). Through these roles, she participates in governance across media, manufacturing, and services sectors. As of the latest filings, she serves on the boards of Graham Holdings Co., Xometry, Inc., and Republic Services, Inc.
Katharine Weymouth is an American business executive and corporate director. Public SEC filings dated 2026-04-18 list her as a director for Graham Holdings Co., Xometry, Inc., and Republic Services, Inc. She is part of the Weymouth family, historically associated with Graham Holdings Company (the successor to The Washington Post Company). Through these roles, she participates i…
How many SEC Form 4 filings has Weymouth Katharine submitted recently?
3 primary Form 4 filings in the last 90 days, covering 3 companies.
Has Weymouth Katharine been buying or selling stock?
Recorded transactions: 1 open-market purchases ($50K) and 2 open-market sales ($759K) across all tracked filings.
Where can I see all of Weymouth Katharine's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
