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Who

David Hornik

Director

Company insider

Files Form 4 as: Director and 10% owner, Fastly; Director and 10% owner, BILL Holdings; Director and 10% owner, GitLab; 10% owner, PubMatic; Director, Splunk; 10% owner, Mavenir Systems.

In numbers

Trades disclosed
131
Buys
1
Sells
14
Bought
$1.0M
Sold
$79.4M
Companies
6
Companies where not an officer
6
First trade
25 Jul 2012
Last trade
3 Jun 2026
Last filed
5 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
FSLY FastlyDirector, 10% owner · Software · last 3 Jun 20260 buys · 4 sells
BILL BILL HoldingsDirector, 10% owner · Software · last 11 Dec 20251 buy · 4 sells
GTLB GitLabDirector, 10% owner · Software · last 18 Oct 20210 buys · 0 sells
PUBM PubMatic10% owner · IT Services & Consulting · last 3 Jun 20210 buys · 1 sell
SplunkDirector · last 8 Jun 20170 buys · 5 sells
Mavenir Systems10% owner · last 13 Nov 20130 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
3 Jun 2026filed 5 Jun 2026FSLY FastlySoftwareSEC FORM 4 Code A—9,601 at $0.00filing
3 Jun 2026filed 5 Jun 2026FSLY FastlySoftwareSEC FORM 4 Code A—9,601 at $0.00filing
11 Dec 2025filed 15 Dec 2025BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code A—3,639 at $0.00filing
5 Dec 2025filed 9 Dec 2025BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code M—2,095 at $0.00filing
5 Dec 2025filed 9 Dec 2025BILL BILL HoldingsSoftwareSEC FORM 4 Code M—2,095filing
11 Jun 2025filed 12 Jun 2025FSLY FastlySoftwareSEC FORM 4 Code A—24,906 at $0.00filing
5 Dec 2024filed 9 Dec 2024BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code M—2,883 at $0.00filing
5 Dec 2024filed 9 Dec 2024BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code A—2,095 at $0.00filing
5 Dec 2024filed 9 Dec 2024BILL BILL HoldingsSoftwareSEC FORM 4 Code M—2,883filing
12 Jun 2024filed 14 Jun 2024FSLY FastlySoftwareSEC FORM 4 Code A—26,666 at $0.00filing
7 Dec 2023filed 11 Dec 2023BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code M—1,733 at $0.00filing
7 Dec 2023filed 11 Dec 2023BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code A—2,883 at $0.00filing
7 Dec 2023filed 11 Dec 2023BILL BILL HoldingsSoftwareSEC FORM 4 Code M—1,733filing
13 Nov 2023filed 15 Nov 2023BILL BILL HoldingsSoftwareSEC FORM 4 Bought$1.0M17,710 at $56.49filing
14 Jun 2023filed 16 Jun 2023FSLY FastlySoftwareSEC FORM 4 Code A—11,080 at $0.00filing
8 Dec 2022filed 12 Dec 2022BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code M—873 at $0.00filing
8 Dec 2022filed 12 Dec 2022BILL BILL Holdingsoption or derivative · SoftwareSEC FORM 4 Code A—1,733 at $0.00filing
8 Dec 2022filed 12 Dec 2022BILL BILL HoldingsSoftwareSEC FORM 4 Code M—873filing
11 Nov 2022filed 15 Nov 2022FSLY FastlySoftwareSEC FORM 4 Sold$3.9M396,542 at $9.92filing
23 Aug 2022filed 12 Dec 2022BILL BILL HoldingsSoftwareSEC FORM 4 Code G—10,000 at $0.00filing

News

Sectors

Technology10
Not placed5

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

Related people

Lee KirkpatrickDirector · Director at BILL Holdings, filing Form 4 there in the last year
Charles Lacey Compton IIICEO · CEO at Fastly, filing Form 4 there in the last year
Peter A. FeldDirector and 10% owner · Director and 10% owner at BILL Holdings, filing Form 4 there in the last year
Artur BergmanChief Technology Officer · Chief Technology Officer at Fastly, filing Form 4 there in the last year
Scott R. LovettPresident, Go to Market · President, Go to Market at Fastly, filing Form 4 there in the last year
Mukul KumarPresident, Engineering · Also traded PUBM in the last 90 days
Amar K. GoelChairman, Chief Innovation Off · Also traded PUBM in the last 90 days
Andrew WoodsGeneral Counsel & Secretary · Also traded PUBM in the last 90 days