StockCIK 1805077

Eos Energy Enterprises, Inc. (EOSE): Insider Trades and Fund Holdings

In the past 12 months, Eos Energy Enterprises, Inc. insiders reported 2 open-market purchases worth $59K and 3 sales worth $1.29M; 3 of the sales were reported as made under a 10b5-1 trading plan.

2Insider buys, 12 months

$59KBought by insiders, 12 months

$1.29MSold by insiders, 12 months

1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 16, 2026.

Recent EOSE insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Sep 16	Sep 16	Joe MastrangeloCEO	CEO	▼ SELL10b5-1	250,000	3.92	$980K	−9.8%	Form 4 ↗
Sep 16	Sep 16	Sumeet PuriCAO	CAO	▼ SELL10b5-1	43,750	3.92	$172K	−14%	Form 4 ↗
Sep 15	Sep 11	Haiyan SongDirector	Director	▲ BUY	10,000	3.95	$40K	New	Form 4 ↗
Sep 15	Sep 14	Haiyan SongDirector	Director	▲ BUY	5,000	3.84	$19K	+50%	Form 4 ↗
Sep 9	Sep 9	Sumeet PuriCAO	CAO	▼ SELL10b5-1	34,167	4.13	$141K	−13%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Buys	Bought	Sells	Sold	Latest
Joe Mastrangelo	CEO	0	$0	1	$980K	Sep 16, 2026
Sumeet Puri	CAO	0	$0	2	$313K	Sep 16, 2026
Haiyan Song	Director	2	$59K	0	$0	Sep 15, 2026

Tracked funds that report EOSE

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Bridgewater Associates	Q2 2026	633,125	$3.72M	0.02%	▲ New
Renaissance Technologies	Q2 2026	0	$0	0.00%	▼ Sold out

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →