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Vertex, Inc.

VERX
Exchange
Nasdaq
Industry
Services-Prepackaged Software
SEC CIK
0001806837

No open-market purchases or sales by Vertex, Inc. insiders were filed in the last 90 days; 229 institutions reported holding it in 13F filings for Q2 2026, worth $859.2M in total; no superinvestor holds it.

Holders of 5% or more of VERX

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Vertex, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of VERX
HolderLatest formStakeChangeFirst filedLatest filingFiling
Radcliffe Amanda Westphal13G/A20.90%33.3M shares−0.30 ppfrom 21.20%Feb 12, 20252 filingsAug 13, 2025SEC
BlackRock, Inc.13G/A6.10%4.35M shares−3.50 ppfrom 9.60%Feb 5, 20252 filingsApr 17, 2025SEC
Tensile Capital Management LP13G/A5.10%3.63M shares–May 15, 20251 filingMay 15, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

6 Schedule 13D and 13G filings on Vertex, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on VERX
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 13, 20257:30 PM ETRadcliffe Amanda Westphaland 15 others13G/A20.90%33.3M shares−0.30 ppfrom 21.20%Jun 30, 2025SEC
May 15, 20254:15 PM ETTensile Capital Management LPand 5 others13G/A5.10%3.63M shares–Mar 31, 2025SEC
Apr 17, 20259:35 AM ETBlackRock, Inc.13G/A6.10%4.35M shares−3.50 ppfrom 9.60%Mar 31, 2025SEC
Mar 6, 20253:10 PM ETNeuberger Berman Group LLCand 1 other13G/A4.60%3.32M shares–Below 5%Feb 28, 2025SEC
Feb 12, 20254:30 PM ETRadcliffe Amanda Westphaland 16 others13G/A21.20%33.3M shares–Dec 31, 2024SEC
Feb 5, 20255:28 PM ETBlackRock, Inc.13G/A9.60%6.31M shares–Dec 31, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Vertex, Inc. shares.

No Form 144 notices for Vertex, Inc. are on file.