Jonathan C Fox

CIK 1655016 · See Remarks · last filed 2026-07-01

"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

$1.08M

Companies

3

Total Filings

40

Lifetime Open-Market Net

-$6.95M

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
EWTX Director 24,833 $43.52 $1.08M $300.4K 13 2026-07-01
Eidos Therapeutics, Inc. (EIDX) Delisted See Remarks 380,967 -$7.28M 24 2020-09-18
MyoKardia, Inc. (MYOK) Delisted Chief Medical Officer 240,997 $30.0K 2 2016-05-06

Recent Filings · Page 2 of 4

40 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
2023-12-28 EWTX Buy (P) +10,857 $101.0K EDGAR
2023-06-14 EWTX Grant (A) $0 EDGAR
2023-03-07 EWTX Grant (A) $0 EDGAR
2021-01-28 Mixed −380,967 $0
2020-09-18 Eidos Therapeutics, Inc. (EIDX) Delisted Sell (S) −5,767 -$289.3K EDGAR
2020-09-16 Eidos Therapeutics, Inc. (EIDX) Delisted Sell (S) −4,233 -$212.2K EDGAR
2020-07-09 Eidos Therapeutics, Inc. (EIDX) Delisted Sell (S) −5,000 -$250.0K EDGAR
2020-07-01 Eidos Therapeutics, Inc. (EIDX) Delisted Other (J) +1,088 $0 EDGAR
2020-06-05 Eidos Therapeutics, Inc. (EIDX) Delisted Mixed −6,596 -$231.5K EDGAR
2020-06-01 Eidos Therapeutics, Inc. (EIDX) Delisted Sell (S) −5,000 -$250.0K EDGAR
Showing 1120 of 40
Page 2 of 4
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.