Ideal Power Inc. (IPWR) has 18 known insider and institutional holders on record. The largest holder is MARXE AUSTIN W & GREENHOUSE DAVID M with 1,146,935 shares. Other notable holders include Alexander Bill and APPEL PETER A.
Over the last 12 months, insiders have made 12 transactions in IPWR stock — 8 buys (valued at $250K) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
IPWR Insider Ownership
Top Holder
MARXE AUSTIN W & GREENHOUSE DAVID M
1,146,935 shares
Buys (12 mo)
8
$250K value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Marxe Austin W & Greenhouse David M |
10 Percent Owner |
1,146,935 |
2015-01-30 |
|
| 2 |
Alexander Bill |
Officer |
394,796 |
2017-08-24 |
|
| 3 |
Appel Peter A |
Director |
394,400 |
2017-03-06 |
|
| 4 |
Somo David M |
President and CEO |
338,347 |
2026-02-26 |
|
| 5 |
Hacopian Hamo |
10 Percent Owner |
262,495 |
2013-11-21 |
|
| 6 |
Awm Investment Company, Inc. |
10 Percent Owner |
239,776 |
2019-10-15 |
|
| 7 |
Brdar Daniel |
President and CEO |
174,652 |
2025-06-24 |
|
| 8 |
Burns Timothy |
CFO |
90,746 |
2025-12-17 |
|
| 9 |
Turmelle Michael C |
Director |
78,332 |
2026-01-05 |
|
| 10 |
Bundschuh Paul |
Chief Executive Officer |
47,634 |
2013-12-02 |
|
| 11 |
Lesster Laban E |
Director |
42,166 |
2026-01-05 |
|
| 12 |
Freeman Drue |
Director |
39,166 |
2026-01-05 |
|
| 13 |
Knight Gregory C |
Director |
39,166 |
2026-01-05 |
|
| 14 |
Bell Lon E |
President and CEO |
24,182 |
2020-04-06 |
|
| 15 |
De Tarr Charles |
Officer |
23,706 |
2013-12-06 |
|
| 16 |
Eisenhaure David B |
Director |
10,607 |
2021-01-06 |
|
| 17 |
Baum Mark L |
Director |
7,800 |
2017-03-06 |
|
| 18 |
O'keefe Ryan |
SVP, Business Development |
7,800 |
2017-03-06 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-25 |
Somo David M |
President and CEO |
Informative Buy |
90,909 |
$2.75 |
$250K |
| 2026-01-02 |
Knight Gregory C |
Director |
RSU Award |
18,182 |
- |
- |
| 2026-01-02 |
Freeman Drue |
Director |
RSU Award |
18,182 |
- |
- |
| 2026-01-02 |
Lesster Laban E |
Director |
RSU Award |
18,182 |
- |
- |
| 2026-01-02 |
Turmelle Michael C |
Director |
RSU Award |
36,364 |
- |
- |
| 2025-12-15 |
Burns Timothy |
CFO |
Tax Withholding of RSU |
3,607 |
$3.85 |
$13.89K |
| 2025-11-03 |
Somo David M |
President and CEO |
RSU Award |
247,438 |
- |
- |
| 2025-11-03 |
Somo David M |
President and CEO |
Unknown |
- |
- |
- |
| 2025-06-20 |
Burns Timothy |
CFO |
Tax Withholding of RSU |
5,639 |
$4.22 |
$23.8K |
| 2025-06-20 |
Brdar Daniel |
President and CEO |
Tax Withholding of RSU |
11,101 |
$4.22 |
$46.85K |
| 2025-06-12 |
Burns Timothy |
CFO |
RSU Award |
20,000 |
- |
- |
| 2025-06-12 |
Brdar Daniel |
President and CEO |
RSU Award |
60,000 |
- |
- |
