Home

Ronald W Barrett

CIK 1326330 · Chief Executive Officer · last filed 2026-06-12

Ronald W Barrett is a Chief Executive Officer who has filed 83 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for JANX, was dated Jun 12, 2026. Across all open-market trades the lifetime net is −$5.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $176.2K across reported positions.

"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.

Loading insider history…
Disclosed Exposure

$176.2K

Companies

3

Total Filings

83

Lifetime Open-Market Net

-$5.85M

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
JANX Director 11,750 $15.00 $176.2K $0 6 2026-06-12
CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted Director 5,125 $8.37 $42.9K -$743.8K 9 2021-06-11
XENOPORT INC (XNPT) Delisted Chief Executive Officer 359,942 — — -$5.11M 68 2015-09-02

Recent Filings

83 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
2026-06-12 JANX Grant (A) +5,500 $0 EDGAR
2025-06-13 JANX Grant (A) +3,750 $0 EDGAR
2024-06-28 JANX Grant (A) +2,500 $0 EDGAR
2023-06-16 JANX Grant (A) — $0 EDGAR
2022-06-16 JANX Grant (A) — $0 EDGAR
2021-09-09 JANX Grant (A) — $0 EDGAR
2021-06-11 CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted Grant (A) +5,125 $0 EDGAR
2020-06-12 CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted Grant (A) — $0 EDGAR
2019-06-17 CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted Grant (A) — $0 EDGAR
2018-06-18 CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted Grant (A) — $0 EDGAR
Showing 1–10 of 83
Page 1 of 9
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.