Home

Russell Monoki Stidolph

CIK 1833275 · last filed 2025-12-08

Russell Monoki Stidolph is a corporate insider who has filed 19 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing, for EOSE, was dated Dec 8, 2025. Across all open-market trades the lifetime net is −$11.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.5M 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

$8.51M

Companies

2

Total Filings

19

Lifetime Open-Market Net

-$11.27M

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
EOSE Director 2,518,395 $3.38 $8.51M -$11.47M 1 2025-12-08
Eos Energy Enterprises, Inc. (EOSEW) Delisted Director 3,017,627 $1.47 $4.44M $199.2K 15 2025-05-21

Recent Filings

19 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
2025-12-08 EOSE Notice (144) −29,999 -$449.7K EDGAR
2025-12-08 EOSE Notice (144) −296,439 -$4.41M EDGAR
2025-12-08 EOSE Mixed −604,999 -$11.47M EDGAR
2025-12-05 EOSE Notice (144) −500,000 -$7.50M EDGAR
2025-05-21 Eos Energy Enterprises, Inc. (EOSEW) Delisted Grant (A) — $0 EDGAR
2025-05-16 Eos Energy Enterprises, Inc. (EOSEW) Delisted Mixed +63,158 -$292.2K EDGAR
2024-07-29 Eos Energy Enterprises, Inc. (EOSEW) Delisted Grant (A) — $0 EDGAR
2024-05-02 Eos Energy Enterprises, Inc. (EOSEW) Delisted Exer (M) +32,328 $0 EDGAR
2023-05-22 Eos Energy Enterprises, Inc. (EOSEW) Delisted Grant (A) — $0 EDGAR
2023-05-17 Eos Energy Enterprises, Inc. (EOSEW) Delisted Exer (M) +108,559 $0 EDGAR
Showing 1–10 of 19
Page 1 of 2
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.