John Markels

CIK 1803424 · last filed 2025-06-16

John Markels is a corporate insider who has filed 11 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing, for SGMO, was dated Jun 16, 2025. Across all open-market trades the lifetime net is +$25.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $21.8K 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.

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Disclosed Exposure

$21.8K

Companies

2

Total Filings

11

Lifetime Open-Market Net

$25.0K

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
SANGAMO THERAPEUTICS, INC (SGMO) Delisted Director 96,384 $0.18 $17.1K $25.0K 7 2025-06-16
ARCT Director 3,131 $6.97 $21.8K $0 4 2025-06-11

Recent Filings

11 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-06-16 SANGAMO THERAPEUTICS, INC (SGMO) Delisted Grant (A) +25,000 $0 EDGAR
2025-06-11 ARCT Grant (A) $0 EDGAR
2024-06-18 ARCT Mixed +3,131 $0 EDGAR
2024-06-06 SANGAMO THERAPEUTICS, INC (SGMO) Delisted Grant (A) +25,000 $0 EDGAR
2023-08-03 ARCT Grant (A) $0 EDGAR
2023-06-05 SANGAMO THERAPEUTICS, INC (SGMO) Delisted Grant (A) +13,900 $0 EDGAR
2022-12-13 ARCT Grant (A) $0 EDGAR
2022-06-06 SANGAMO THERAPEUTICS, INC (SGMO) Delisted Buy (P) +6,784 $25.0K EDGAR
2022-03-01 SANGAMO THERAPEUTICS, INC (SGMO) Delisted Grant (A) +12,500 $0 EDGAR
2021-03-01 SANGAMO THERAPEUTICS, INC (SGMO) Delisted Grant (A) +8,200 $0 EDGAR
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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.