TERADYNE INC

The dominant fact in Teradyne's Q2 2026 institutional book is a single filer's exit. Assenagon Asset Management S.A. cut its position from 1,455,143 shares to 47,313 — a 96.75% reduction, and a dollar decline of $408.5 million. To put that in perspective: Assenagon's stake alone, before this quarter's cut, was implied to be worth roughly $431.4 million — more than the $258.9 million total institutional value tracked across all 88 filers in TER today. Even after selling down to almost nothing, Assenagon's remaining $22.9 million stake still ranks fourth-largest in the book. The move happened against a backdrop of real price strength — the implied per-share price rose from roughly $296 to roughly $484, up about 63% — which is also why several other large trims still show up as dollar gains: Congress Asset Management Co, the current top holder at $52.2 million (20.2% of the book), cut its share count by less than 0.5% and still posted a $20.1 million valueChange purely from price. Not every reduction was cushioned that way, though. Covea Finance sold 49.0% of its shares for a real $1.05 million loss, and Town & Country Bank & Trust cut 41.8% for a $122,806 loss — genuine selling that outran the rally. On the buying side, the standouts are not the three brand-new positions (Insight Wealth Strategies at $6.9 million, Focus Financial Network at $5.9 million, and Park Capital Management at $2.5 million) but two filers that already held token stakes and built them into real ones: GoalVest Advisory LLC grew from 23 shares to 8,236 — roughly 358-fold, now $4.0 million — and CoreCap Advisors, LLC grew from 134 shares to 8,816 — roughly 66-fold, now $4.3 million — conviction builds large enough to matter, even though neither trips the 'new position' flag.