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Charles Cherington

CIK 1448698 · last filed 2026-02-17

Charles Cherington is a corporate insider who has filed 20 SEC Form 4 insider transactions across 4 companies since 2021. The most recent filing shows the insider bought $2.0M of ERNAW on Feb 17, 2026. Across all open-market trades the lifetime net is +$1.7M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.1M 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

$3.06M

Companies

4

Total Filings

20

Lifetime Open-Market Net

$1.72M

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
ERNAW 10%+ Owner 6,779,440 $0.05 $339.0K $2.00M 1 2026-02-17
ERNA 10%+ Owner 111,093 $3.61 $401.0K $3.47M 7 2025-06-11
Comera Life Sciences Holdings, Inc. (CMRAW) Delisted 10%+ Owner 7,082,411 $0.02 $136.7K $2.54M 8 2023-09-11
BTX Director 294,710 $7.87 $2.32M -$6.30M 3 2022-08-03

Recent Filings

20 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
2026-02-17 ERNAW Buy (P) +4,000,000 $2.00M EDGAR
2025-06-11 ERNA Buy (P) +21,241,163 $2.22M EDGAR
2025-05-07 ERNA Mixed +13,252,112 $0 EDGAR
2025-04-04 ERNA Buy (P) +3,768,397 $394.2K EDGAR
2024-11-05 ERNA Mixed +16,071,658 $1.41M EDGAR
2024-01-03 — Buy (P) — $0
2023-12-20 ERNA Mixed — $0 EDGAR
2023-09-11 Comera Life Sciences Holdings, Inc. (CMRAW) Delisted Buy (P) +2,053,789 $1.05M EDGAR
2023-08-25 Comera Life Sciences Holdings, Inc. (CMRAW) Delisted Buy (P) +880,195 $450.0K EDGAR
2023-08-25 ERNA Buy (P) — $0 EDGAR
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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.