Eos Energy Enterprises, Inc.

By person

15 insiders · 41 transactions

2.2×

Joe Mastrangelo holds only 2.2 times base salary in stock. $9.05M of shares against $4.01M in salary for 2025.

Salary from the company's own proxy. The shares are what Joe Mastrangelo last reported holding, valued at $3.92, the price Common Stock was last bought or sold at on the open market here, on 16 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Stidolph Russell Monoki

Director

—

$11.47M (4)

−$11.47M

2,487,628

0.6831%

$9.75M

−17.9%

Kroeker Nathan

Chief Commercial Officer

—

$1.75M (4) scheduled

−$1.75M

887,527

0.2437%

$3.48M

+425.6%

Walters Marian

Director

—

$1.28M (4) scheduled

−$1.28M

171,634

0.0471%

$672.81K

+63.7%

Mastrangelo Joe

Chief Executive Officer

$502.26K (2)

$1.55M (2) scheduled

−$1.05M

2,308,704

0.6340%

$9.05M

+153.8%

Silberman Michael W

Chief Legal Officer

—

$827.21K (2) scheduled

−$827.21K

298,277

0.0819%

$1.17M

—

Bornstein Jeffrey S

Director

—

$612.54K (2)

−$612.54K

143,806

0.0395%

$563.72K

+54.7%

Puri Sumeet

Chief Accounting Officer

—

$462.31K (4) scheduled

−$462.31K

280,195

0.0769%

$1.10M

+465.5%

Urban David

Director

$100.10K (1)

—

+$100.10K

97,767

0.0268%

$383.25K

—

DIMITRIEF ALEXANDER

Director

$90.60K (1)

—

+$90.60K

280,673

0.0771%

$1.10M

+53.9%

Buczkowski Michelle

Chief Commercial Officer

—

$67.32K (1) scheduled

−$67.32K

61,827

0.0170%

$242.36K

+29.4%

Song Haiyan

Director

$58.70K (2)

—

+$58.70K

15,000

0.0041%

$58.80K

—

Demby Claude

Director

—

157,400

0.0432%

$617.01K

+66.8%

McNeil Jeff

Director

—

122,290

0.0336%

$479.38K

+237.5%

Nigro Joseph

Director

—

41,723

0.0115%

$163.55K

—

Nixon Gregory S.

Director

—

13,867

0.0038%

$54.36K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Walters Marian

28 May 2026

Director

Sold after exercise

30,000

$9.18

$275.40K

Walters Marian

20 May 2026

Director

Sold after exercise

22,319

$7.20

$160.70K

Walters Marian

19 May 2026

Director

Sold after exercise

7,681

$7.07

$54.30K

Stidolph Russell Monoki

8 Dec 2025

Director

Sold after exercise

235,367

$14.89

$3.50M

Stidolph Russell Monoki

8 Dec 2025

Director

Sold after exercise

768

$14.80

$11.37K

Stidolph Russell Monoki

8 Dec 2025

Director

Sold after exercise indirect

29,999

$15.36

$460.78K

Walters Marian

4 Dec 2025

Director

Sold after exercise

50,000

$15.81

$790.50K

Show all 41 transactions →

Eos Energy Enterprises, Inc.

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