Eos Energy Enterprises (EOSE) insider buying

Industrials · Electrical Equipment & Parts · Market cap $711M

6 open-market purchases of EOSE by Eos Energy Enterprises's executives and directors since March 2026, worth $751,662 in total, from SEC Form 4 filings.

The most recent: Haiyan Song, Director bought $19,200 on September 14, 2026.

The biggest buyer over the period is Joe Mastrangelo: 2 purchases, $502,262.

By year

YearPurchasesValue
20266$751,662

Biggest buyers

InsiderBuysValue
Joe Mastrangelo
2$502,262
David Urban
1$100,100
Alexander Dimitrief
1$90,600
Haiyan Song
Director		2$58,700

Every purchase

Newest first. From SEC Form 4 filings. Insider buying across the market.

DateInsiderSharesPriceValueFiling
Sep 14, 2026 Haiyan Song
Director		 5,000$3.84$19,200 Form 4
Sep 11, 2026 Haiyan Song
Director		 10,000$3.95$39,500 Form 4
Mar 9, 2026 David Urban
 16,250$6.16$100,100 Form 4
Mar 4, 2026 Joe Mastrangelo
 23,900$6.58$157,262 Form 4
Mar 2, 2026 Alexander Dimitrief
 15,000$6.04$90,600 Form 4
Mar 2, 2026 Joe Mastrangelo
 60,000$5.75$345,000 Form 4
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Questions

Are Eos Energy Enterprises insiders buying the stock?

6 open-market purchases of EOSE by Eos Energy Enterprises's executives and directors since March 2026, worth $751,662 in total, from SEC Form 4 filings. The most recent: Haiyan Song, Director bought $19,200 on September 14, 2026.

What counts as insider buying here?

Open-market purchases (Form 4 code P) by officers and directors. Option exercises, grants and purchases by 10% owners are left out.

From Eos Energy Enterprises's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.