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

Mastrangelo Joe

16 Sep 2026

Chief Executive Officer

Sold on a plan

250,000

$3.92

$980.00K

Puri Sumeet

16 Sep 2026

Chief Accounting Officer

Sold on a plan

43,750

$3.92

$171.50K

Song Haiyan

14 Sep 2026

Director

Buy

5,000

$3.84

$19.20K

Song Haiyan

11 Sep 2026

Director

Buy

10,000

$3.95

$39.50K

Puri Sumeet

9 Sep 2026

Chief Accounting Officer

Sold on a plan

34,167

$4.13

$141.11K

Kroeker Nathan

28 Jul 2026

Chief Commercial Officer

Sold on a plan

110,417

$3.36

$371.00K

Puri Sumeet

28 Jul 2026

Chief Accounting Officer

Sold on a plan

29,167

$3.36

$98.00K

Mastrangelo Joe

27 Jul 2026

Chief Executive Officer

Sell

159,154

$3.61

$574.55K

Kroeker Nathan

21 Jul 2026

Chief Commercial Officer

Exercised, kept

16,944

$5.48

$92.85K

Demby Claude

21 Jul 2026

Director

Exercised, kept

1,825

$5.48

$10.00K

Buczkowski Michelle

21 Jul 2026

Chief Administration Officer

Exercised, kept

2,585

$5.48

$14.17K

Nigro Joseph

21 Jul 2026

Director

Exercised, kept

2,773

$5.48

$15.20K

Urban David

21 Jul 2026

Director

Exercised, kept

12,185

$5.48

$66.77K

Bornstein Jeffrey S

21 Jul 2026

Director

Exercised, kept

9,558

$5.48

$52.38K

Walters Marian

21 Jul 2026

Director

Exercised, kept

11,407

$5.48

$62.51K

DIMITRIEF ALEXANDER

21 Jul 2026

Director

Exercised, kept indirect

1,377

$5.48

$7.55K

DIMITRIEF ALEXANDER

21 Jul 2026

Director

Exercised, kept

17,897

$5.48

$98.08K

Mastrangelo Joe

21 Jul 2026

Chief Executive Officer

Exercised, kept

111,118

$5.48

$608.93K

Kroeker Nathan

7 Jul 2026

CCO and Interim CFO

Sold on a plan

79,309

$4.68

$371.17K

Kroeker Nathan

30 Jun 2026

CCO and Interim CFO

Sold on a plan

35,289

$5.86

$206.79K

Silberman Michael W

30 Jun 2026

Chief Legal Officer

Sold on a plan

14,998

$5.87

$88.04K

Buczkowski Michelle

30 Jun 2026

Chief Administration Officer

Sold on a plan

11,469

$5.87

$67.32K

Puri Sumeet

30 Jun 2026

Chief Accounting Officer

Sold on a plan

8,823

$5.86

$51.70K

Mastrangelo Joe

12 Jun 2026

Chief Executive Officer

Exercised, kept

200,000

$1.34

$268.00K

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

Urban David

9 Mar 2026

Director

Buy

16,250

$6.16

$100.10K

Mastrangelo Joe

4 Mar 2026

Chief Executive Officer

Buy

23,900

$6.58

$157.26K

Mastrangelo Joe

2 Mar 2026

Chief Executive Officer

Buy

60,000

$5.75

$345.00K

DIMITRIEF ALEXANDER

2 Mar 2026

Director

Buy

15,000

$6.04

$90.60K

Kroeker Nathan

26 Jan 2026

CCO and Interim CFO

Sold on a plan

50,000

$16.04

$802.00K

Silberman Michael W

23 Jan 2026

Chief Legal Officer

Sold on a plan

41,667

$17.74

$739.17K

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

Bornstein Jeffrey S

5 Dec 2025

Director

Sell

32,328

$15.05

$486.54K

DIMITRIEF ALEXANDER

5 Dec 2025

Director

Exercised, kept

18,473

$14.43

$266.57K

Stidolph Russell Monoki

5 Dec 2025

Director

Sell indirect

500,000

$14.99

$7.50M

Walters Marian

4 Dec 2025

Director

Sold after exercise

50,000

$15.81

$790.50K

Bornstein Jeffrey S

4 Dec 2025

Director

Sell indirect

8,000

$15.75

$126.00K

Eos Energy Enterprises, Inc.

By person

Individual transactions

What was left out