DOSSIER · 13F-HR · Q1 2026
ALLIANCEBERNSTEIN L.P.
ALLIANCEBERNSTEIN L.P.'s family office based in Boston, MA — $308.8B in tracked AUM across 3,251 positions as of Q1 2026.
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ALLIANCEBERNSTEIN L.P.·Boston, MA·Family Office
CIK 0001109448 · last filed Mar 31, 2026
AI Analysis · Q1 2026 · Q1 2026
AllianceBernstein's 13F portfolio eased to $308.8B in Q1 2026 from $316.7B across a relatively concentrated 3,251 positions. Nvidia (5.95%), Microsoft (4.98%), Amazon (3.93%), Alphabet (3.91%), and Apple (3.76%) lead. The firm cut Microsoft (-$2.1B), Taiwan Semi (-$527M), and Nvidia (-$482M) while adding to Apple (+$542M), Berkshire Hathaway B (+$450M), Verisk (+$383M), and Cadence (+$327M). New positions opened in GE, Shopify, AppLovin, Exxon Mobil, and Merck; Intuit, Qualcomm, ServiceNow, and Sherwin-Williams were sold.
Quarter at a glance — Q1 2026
Position-change comparison pending.
No quarter-over-quarter changes available.
Top 10 holdings
By portfolio weight as of Q1 2026.
Filing history
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