Insider transactions

David Hornik

CIK 1547378 · last filed 2026-06-05

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure
$14.83M
Companies
5
Total Filings
50
Lifetime Open-Market Net
-$79.86M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

BILL price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
2480 SAND HILL ROAD, SUITE 101
MENLO PARK, CA 94025
Related Filers
Howard Hartenbaum — 12 joint filings, latest 2022-08-18
August Capital Management V, L.L.C. — 9 joint filings, latest 2021-11-17
August Capital Strategic Partners V, L.P. — 9 joint filings, latest 2021-11-17
August Capital VII, L.P. — 3 joint filings, latest 2022-08-18
W Eric Carlborg — 3 joint filings, latest 2022-08-18
John R Johnston — 3 joint filings, latest 2015-05-01
David F Marquardt — 3 joint filings, latest 2015-05-01
Andrew Rappaport — 2 joint filings, latest 2013-11-15
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
FSLY Director 269,431 $15.98 $4.31M -$24.23M 17 2026-06-05
BILL Director 43,696 $53.81 $2.35M -$52.55M 18 2025-12-15
GTLB Director — $47.12 — $0 1 2021-10-18
PUBM 10%+ Owner 429,237 $19.03 $8.17M -$2.24M 2 2021-08-26
SPLUNK INC (SPLK) Delisted Director 21,046 $156.90 $3.30M -$838.9K 11 2017-06-09

Recent Filings · Page 3 of 5

50 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2021-01-05 BILL Mixed −10,750 $0 EDGAR
2020-10-05 BILL Exer (M) +1,250 $0 EDGAR
2020-09-04 FSLY Gift (G) −325 $0 EDGAR
2020-09-03 BILL Mixed −3,980,016 -$9.99M EDGAR
2020-09-01 FSLY Sell (S) −175,000 -$16.69M EDGAR
2020-07-02 BILL Exer (M) +1,250 $0 EDGAR
2020-06-17 BILL Sell (S) −500,000 -$37.12M EDGAR
2020-06-11 FSLY Grant (A) +3,844 $0 EDGAR
2020-05-29 BILL Mixed −3,168,299 -$2.62M EDGAR
2020-05-27 FSLY Mixed +167,651 $0 EDGAR
Showing 21–30 of 50
Page 3 of 5
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.