Joe Mastrangelo
CIK 1833309 · Chief Executive Officer · last filed 2026-07-28
"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
$6.58M
Companies
2
Total Filings
29
Lifetime Open-Market Net
-$3.05M
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 | Chief Executive Officer | 1,947,586 | $3.38 | $6.58M | -$72.3K | 5 | 2026-07-28 |
| Eos Energy Enterprises, Inc. (EOSEW) Delisted | Chief Executive Officer | 1,569,893 | $1.47 | $2.31M | -$2.98M | 21 | 2025-07-29 |
Recent Filings · Page 2 of 3
29 filingsInsider 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 |
|---|---|---|---|---|---|
| 2025-05-16 | EOSE | Notice (144) | −270,384 | -$1.86M | EDGAR |
| 2025-05-16 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Sell (S) | −270,384 | -$1.85M | EDGAR |
| 2025-05-12 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Mixed | +470,000 | $0 | EDGAR |
| 2024-08-12 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Buy (P) | +52,800 | $75.5K | EDGAR |
| 2024-07-29 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-07-09 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Mixed | +138,621 | -$222.1K | EDGAR |
| 2024-01-05 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Mixed | +127,573 | -$121.8K | EDGAR |
| 2023-09-21 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Buy (P) | +36,500 | $74.8K | EDGAR |
| 2023-07-28 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Buy (P) | +31,199 | $69.6K | EDGAR |
| 2023-07-06 | Eos Energy Enterprises, Inc. (EOSEW) Delisted | Grant (A) | — | $0 | EDGAR |
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.
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.