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Who

Amanda Westphal Radcliffe

Director and 10% owner

Company insider

Files Form 4 as: Director and 10% owner, Vertex.

In numbers

Trades disclosed
10
Buys
2
Sells
0
Bought
$1.7M
Sold
$0
Companies
1
Companies where not an officer
1
First trade
31 Jul 2020
Last trade
10 Jun 2026
Last filed
12 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
VERX VertexDirector, 10% owner · Software · last 10 Jun 20262 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
10 Jun 2026filed 12 Jun 2026VERX VertexSoftwareSEC FORM 4 Code A—15,638 at $0.00filing
10 Jun 2026filed 12 Jun 2026VERX VertexSoftwareSEC FORM 4 Code A—15,638 at $0.00filing
11 Jun 2025filed 13 Jun 2025VERX VertexSoftwareSEC FORM 4 Code A—5,327 at $0.00filing
12 Jun 2024filed 14 Jun 2024VERX VertexSoftwareSEC FORM 4 Code A—5,705 at $0.00filing
6 Dec 2023filed 8 Dec 2023VERX Vertexoption or derivative · SoftwareSEC FORM 4 Code W—789,000 at $0.00filing
13 Jun 2023filed 15 Jun 2023VERX VertexSoftwareSEC FORM 4 Code A—8,815 at $0.00filing
14 Jun 2022filed 15 Jun 2022VERX VertexSoftwareSEC FORM 4 Code A—15,121 at $0.00filing
15 Mar 2022filed 16 Mar 2022VERX VertexSoftwareSEC FORM 4 Bought$101K7,825 at $12.91filing
11 May 2021filed 13 May 2021VERX VertexSoftwareSEC FORM 4 Code A—8,494 at $0.00filing
31 Jul 2020filed 13 May 2021VERX VertexSoftwareSEC FORM 4 Bought$1.6M84,210 at $19.00filing

News

Vertex (NASDAQ:VERX) Cut to Hold at Wall Street ZenVERX · dailypolitical.com · 13 Oct 2026

0 headlines in the last 90 days name Amanda Westphal Radcliffe; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Technology2

Buys in green, sells in red, by the company’s sector.

Related people

Debanjan SahaDirector · Director at Vertex, filing Form 4 there in the last year
Philip Seth SaundersDirector · Director at Vertex, filing Form 4 there in the last year
Eric C. AndersenDirector · Director at Vertex, filing Form 4 there in the last year
Stefanie Westphal ThompsonDirector and 10% owner · Director and 10% owner at Vertex, filing Form 4 there in the last year
Bradley M. GaytonDirector · Director at Vertex, filing Form 4 there in the last year