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Who

ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001

10% owner

Company insider

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

In numbers

Trades disclosed
19
Buys
1
Sells
15
Bought
$301K
Sold
$42.2M
Companies
1
Companies where not an officer
1
First trade
31 Mar 2023
Last trade
9 Mar 2026
Last filed
9 Mar 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
VERX Vertex10% owner, Other · Software · last 9 Mar 20261 buy · 15 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
201Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
9 Mar 2026filed 9 Mar 2026VERX VertexSoftwareSEC FORM 4 Bought$150K10,000 at $15.05filing
9 Mar 2026filed 9 Mar 2026VERX VertexSoftwareSEC FORM 4 Bought$151K10,000 at $15.05filing
23 Jan 2025filed 23 Jan 2025VERX VertexSoftwareSEC FORM 4 Sold$1.0M18,157 at $56.52filing
22 Jan 2025filed 23 Jan 2025VERX VertexSoftwareSEC FORM 4 Sold$3.0M53,843 at $56.48filing
10 Dec 2024filed 11 Dec 2024VERX VertexSoftwareSEC FORM 4 Sold$3.4M61,654 at $54.98filing
9 Dec 2024filed 11 Dec 2024VERX VertexSoftwareSEC FORM 4 Sold$736K13,346 at $55.13filing
21 Nov 2024filed 21 Nov 2024VERX VertexSoftwareSEC FORM 4 Sold$1.6M31,034 at $53.13filing
20 Nov 2024filed 21 Nov 2024VERX VertexSoftwareSEC FORM 4 Sold$2.1M40,966 at $52.16filing
26 Aug 2024filed 27 Aug 2024VERX VertexSoftwareSEC FORM 4 Sold$5.9M158,900 at $37.27filing
13 Nov 2023filed 14 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$547K20,000 at $27.35filing
10 Nov 2023filed 14 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$7.6M280,000 at $27.17filing
8 Nov 2023filed 8 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$2.4M105,337 at $22.72filing
7 Nov 2023filed 8 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$3.6M157,387 at $23.12filing
6 Nov 2023filed 8 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$2.8M126,155 at $22.29filing
3 Nov 2023filed 3 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$3.9M168,208 at $23.36filing
2 Nov 2023filed 3 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$1.9M79,718 at $23.33filing
1 Nov 2023filed 3 Nov 2023VERX VertexSoftwareSEC FORM 4 Sold$1.5M63,195 at $23.60filing
31 Mar 2023filed 4 Apr 2023VERX Vertexoption or derivative · SoftwareSEC FORM 4 Code C—2,589,000 at $0.00filing
31 Mar 2023filed 4 Apr 2023VERX VertexSoftwareSEC FORM 4 Code C—2,589,000 at $0.00filing

News

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

0 headlines in the last 90 days name ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Technology16

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