Eric A Prouty

CIK 1620724 · last filed 2026-06-22

"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

$349

Companies

2

Total Filings

35

Lifetime Open-Market Net

-$779.9K

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
HDSN.C Director 158,292 -$803.6K 29 2026-06-22
AQMS Director 128 $2.73 $349 $23.8K 5 2019-01-22

Recent Filings · Page 3 of 4

35 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
2019-01-22 AQMS Buy (P) +5,000 $9.5K EDGAR
2019-01-03 AQMS Grant (A) +6,757 $0 EDGAR
2018-12-12 HDSN.C Buy (P) +5,000 $8.2K EDGAR
2018-12-04 HDSN.C Grant (A) $0 EDGAR
2018-08-16 HDSN.C Buy (P) +5,000 $9.1K EDGAR
2018-07-30 HDSN.C Grant (A) +11,364 $0 EDGAR
2018-07-05 AQMS Grant (A) +8,865 $0 EDGAR
2018-06-18 AQMS Buy (P) +5,000 $14.2K EDGAR
2018-05-24 HDSN.C Buy (P) +5,000 $11.7K EDGAR
2018-05-08 AQMS Grant (A) $0 EDGAR
Showing 2130 of 35
Page 3 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.