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WAVEMAN · COMPANY
EOSE · Eos Energy Enterprises, Inc.
> Ask across nine datasets ⌘K
LIVE
TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475TEAM-2.62% 13F +440META+1.00% 13F +2,694RCG+0.35% CLUSTERUTHR-0.54% 13F +425CRWV+5.68% 13F +694CRM-1.97% 13F +1,019CVNA+1.58% 13F +795TPL-1.11% 13F +444NET-1.96% 13F +711MSTR-1.39% 13F +527DELL+1.50% 13F +1,204CRWD-0.87% 13F +1,383ANET+1.22% 13F +1,324COIN-4.18% 13F +475
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EOSE

Eos Energy Enterprises, Inc.
SEMICONDUCTORS & ELECTRONICS · MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES · CIK 0001805077
FORM 144 · 8☆ WATCH
INSIDER NET · 180D
-$2.3M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
0
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
210
13F, latest reported quarter
REVENUE GROWTH
+631.8%
XBRL, annual
NET MARGIN
-849.1%
CONVERSIONS · 180D
33
codes C/M, not in net · $1.4M priced
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$2.3M over 180 days
-$1.8M over 90 days
more than 58% of Semiconductors & Electronics
CONGRESS
no member of Congress has reported trading it
FUNDS
210 funds added or opened last quarter
more than 64% of Semiconductors & Electronics
REVENUE
+631.8% year over year
more than 97% of Semiconductors & Electronics
MARGIN
-849.1% net margin
below 98% of Semiconductors & Electronics
BUYBACKS
no share repurchases reported
SHORT
31.8% of shares outstanding short · 4.4 days to cover · settled 2026-07-31
more than 98% of Semiconductors & Electronics
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$2.3M across 6 people in 180 days.
210 funds added or opened positions in the latest 13F quarter, of 352 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN -48.3%
-48.3%12M
-60%+12%+84%+156%2025-092025-102025-122026-032026-052026-072026-09 2025-12-05 · Stidolph Russell Monoki sold $7.5M2025-12-08 · Stidolph Russell Monoki sold $3.5M2026-01-26 · Kroeker Nathan sold $802.0K2025-12-04 · Walters Marian sold $790.5K2026-01-23 · Silberman Michael W sold $739.2K2026-07-27 · Mastrangelo Joe sold $574.5K2025-12-05 · Bornstein Jeffrey S sold $486.5K2025-12-08 · Stidolph Russell Monoki sold $460.8K2025-09-03 · Walters Marian sold $395.0K2026-07-07 · Kroeker Nathan sold $371.2K2026-07-28 · Kroeker Nathan sold $371.0K2026-03-02 · Mastrangelo Joe bought $345.0K2026-05-28 · Walters Marian sold $275.4K2026-06-30 · Kroeker Nathan sold $206.8K2026-05-20 · Walters Marian sold $160.7K2026-03-04 · Mastrangelo Joe bought $157.3K2025-09-08 · Puri Sumeet sold $145.0K2025-09-08 · Puri Sumeet sold $143.1K2025-12-04 · Bornstein Jeffrey S sold $126.0K2026-03-09 · Urban David bought $100.1K2026-07-28 · Puri Sumeet sold $98.0K2026-03-02 · DIMITRIEF ALEXANDER bought $90.6K2026-06-30 · Silberman Michael W sold $88.0K2026-06-30 · Buczkowski Michelle sold $67.3K2026-05-19 · Walters Marian sold $54.3K2026-06-30 · Puri Sumeet sold $51.7K2025-12-08 · Stidolph Russell Monoki sold $11.4K2026-07-28 · Kroeker Nathan filed to sell $378.7K2026-07-28 · Silberman Michael W filed to sell $250.1K2026-07-28 · Puri Sumeet filed to sell $100.0K2026-07-07 · Kroeker Nathan filed to sell $412.4K2026-06-30 · Buczkowski Michelle filed to sell $68.7K2026-06-30 · Kroeker Nathan filed to sell $211.4K2026-06-30 · Silberman Michael W filed to sell $89.8K2026-06-30 · Puri Sumeet filed to sell $52.8K
INSIDER BUYINSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $2.3M sold by insiders over 180 days, 210 funds added last quarter, $1.6M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
NVDACRDOVICRMPWRVPLMALABPIMTSIMUAIPAVGOMSI
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Eos Energy Enterprises, Inc. insiders sold a net $2.3M of stock across 101 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-06.

INSIDER
FILED
SHARES
VALUE
Kroeker Nathan
Chief Commercial Officer
SELL
2026-07-28
110,417.0
$371.0K
Puri Sumeet
Chief Accounting Officer
SELL
2026-07-28
29,167.0
$98.0K
Mastrangelo Joe
Chief Executive Officer
SELL
2026-07-27
159,154.0
$574.5K
Kroeker Nathan
CCO and Interim CFO
SELL
2026-07-07
79,309.0
$371.2K
Puri Sumeet
Chief Accounting Officer
SELL
2026-06-30
8,823.0
$51.7K
101 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 96 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
27,130,305.0 sh
$159.5M
VANGUARD CAPITAL MANAGEMENT LLC
15,021,392.0 sh
$88.3M
Hudson Bay Capital Management LP
13,683,634.0 sh
$80.5M
Driehaus Capital Management LLC
13,556,010.0 sh
$79.7M
TWO SIGMA INVESTMENTS, LP
12,783,883.0 sh
$75.2M
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
Kroeker Nathan
FILED 2026-07-28
$378.7K
Silberman Michael W
FILED 2026-07-28
$250.1K
Puri Sumeet
FILED 2026-07-28
$100.0K
Kroeker Nathan
FILED 2026-07-07
$412.4K
Buczkowski Michelle
FILED 2026-06-30
$68.7K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
ALPS Clean Energy ETF
$2.2M POSITION · AS OF 2026-02-28
1.9%
Invesco WilderHill Clean Energy ETF
$6.8M POSITION · AS OF 2026-04-30
1.5%
Global X CleanTech ETF
$414.7K POSITION · AS OF 2026-02-28
1.5%
State Street(R) SPDR(R) S&P Kensho Clean Power ETF
$1.8M POSITION · AS OF 2026-03-31
1.0%
Driehaus Small Cap Growth Fund
$7.7M POSITION · AS OF 2026-03-31
0.7%
First Trust NASDAQ Clean Edge Green Energy Index Fund
$3.6M POSITION · AS OF 2026-03-31
0.7%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Executive pay vs shareholder return · Joe Mastrangelo
DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself
FY
CEO TOTAL
ACTUALLY PAID
OTHER NEOs AVG
TSR
PEER TSR
2025
$4.9M
$23.1M
$3.2M
+674%
—
2024
$5.5M
$15.3M
$3.0M
+228%
—
2023
$4.3M
$2.0M
$2.1M
-26%
—
2022
$1.2M
-$3.1M
$1.8M
-80%
—
TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$114.2M$15.6M$16.4M$17.9M
GROSS PROFIT$-143.8M$-83.3M$-73.4M—
OPERATING INCOME$-259.3M$-175.2M$-152.9M$-221.3M
NET INCOME$-969.6M$-685.9M$-229.5M$-229.8M
EPS (DILUTED)-6.69-4.55-1.81-3.68
OPERATING CASH FLOW$-211.2M$-153.9M$-145.0M$-196.9M
CASH$568.0M$74.3M$69.5M$17.1M
LONG-TERM DEBT$812.9M$314.9M$200.5M$170.3M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-06 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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