John G Houston

CIK 1753537 · President and CEO · last filed 2026-03-02

"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

$8.74M

Companies

2

Total Filings

29

Lifetime Open-Market Net

-$17.26M

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
ARVN President and CEO 1,152,792 $7.58 $8.74M -$17.26M 23 2026-03-02
NXTC Director $2.08 $0 6 2025-06-24

Recent Filings · Page 2 of 3

29 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2022-03-04 ARVN Mixed +11,487 -$385.2K EDGAR
2021-11-03 ARVN Mixed -$2.89M EDGAR
2021-09-07 ARVN Exer (M) +4,690 $75.0K EDGAR
2021-08-04 ARVN Mixed -$3.76M EDGAR
2021-06-28 NXTC Grant (A) $0 EDGAR
2021-06-11 ARVN Mixed -$2.92M EDGAR
2021-03-02 ARVN Mixed +10,020 -$610.5K EDGAR
2021-02-18 ARVN Mixed -$2.76M EDGAR
2021-02-18 ARVN Exer (M) +1,560 $25.0K EDGAR
2020-09-14 NXTC Grant (A) $0 EDGAR
Showing 1120 of 29
Page 2 of 3
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.