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Teradyne, Inc. — Major Holders & Superinvestors

TER
NASDAQTechnologySemiconductorsCIK 0000097210teradyne.comAbout TER
Last close · Oct 16, 2026325.00−18.21 (−5.31%)
Market cap$50.8B

Of the 85 managers this site tracks, 3 held Teradyne (TER) at the end of Q2 2026, their latest 13Fs. The largest position by value was Stephen Mandel's, $722.4M; Bridgewater's ($47.7M) and Lee Ainslie's ($1.0M) follow. No Schedule 13D or 13G is on file for TER from the activists and large holders the site follows.

Superinvestors holding TER

3 of the tracked managers · latest 13F
ManagerFirmQuarterSharesValue

13D/13G are SEC beneficial-ownership disclosures, triggered only above 5%; a 13F is a quarterly snapshot filed up to 45 days after quarter end. Superinvestor names link to their full portfolios under Investors.