Ideal Power Inc. (IPWR) Ownership
IPWR ownership summary
as of October 18, 2026- Institutions
- 40.3% of shares outstanding
- Insiders
- 4.78% of shares outstanding
- Shares outstanding
- 16.4M
- Float
- 13.2M shares available to trade
- Short interest
- 3.14% 508K shares short
- Days to cover
- 2.49 short interest down 26.7% vs prior month
- Institutions 40.31%
- Insiders 4.78%
- Other investors 54.92%
IPWR top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Awm Investment Company Inc | 8.19% | 1.3M | $4.0M | +149,395 (+12.5%) | June 30, 2026 |
| 2 | AIGH Capital Management, LLC | 5.44% | 895K | $2.7M | −286,965 (−24.3%) | June 30, 2026 |
| 3 | The Goldman Sachs Group Inc | 4.02% | 660K | $2.0M | +423,054 (+178.3%) | June 30, 2026 |
| 4 | Vanguard Capital Management, LLC | 3.71% | 609K | $1.8M | +294,521 (+93.7%) | June 30, 2026 |
| 5 | Stifel Financial Corp | 2.85% | 469K | $1.4M | +387,454 (+475.7%) | June 30, 2026 |
| 6 | Bleichroeder LP | 2.43% | 400K | $1.2M | +100,000 (+33.3%) | June 30, 2026 |
| 7 | Baird Financial Group, Inc. | 1.98% | 326K | $971,683 | +326,068 (0.0%) | June 30, 2026 |
| 8 | Marshall Wace Asset Management Ltd | 1.94% | 318K | $948,287 | +318,217 (0.0%) | June 30, 2026 |
| 9 | Jane Street Group LLC | 1.64% | 269K | $801,045 | +244,752 (+1,017.5%) | June 30, 2026 |
| 10 | BlackRock Inc | 0.83% | 136K | $405,790 | +14,644 (+12.1%) | June 30, 2026 |
| 11 | Geode Capital Management, LLC | 0.73% | 120K | $358,074 | +20,914 (+21.1%) | June 30, 2026 |
| 12 | Renaissance Technologies Corp | 0.61% | 101K | $300,247 | +100,754 (0.0%) | June 30, 2026 |
| 13 | Polar Asset Management Partners | 0.43% | 71K | $210,686 | +70,700 (0.0%) | June 30, 2026 |
| 14 | Silverberg Bernstein Capital Management LLC | 0.40% | 66K | $197,845 | +66,391 (0.0%) | September 30, 2026 |
| 15 | Vanguard Fiduciary Trust Co | 0.39% | 64K | $191,033 | +21,592 (+50.8%) | June 30, 2026 |
| 16 | Bank of America Corp | 0.37% | 61K | $181,002 | +60,739 (0.0%) | June 30, 2026 |
| 17 | DIVERSIFY WEALTH MANAGEMENT, LLC | 0.36% | 60K | $178,433 | +59,877 (0.0%) | June 30, 2026 |
| 18 | Morgan Stanley - Brokerage Accounts | 0.36% | 58K | $174,020 | +37,336 (+177.3%) | June 30, 2026 |
| 19 | XTX Topco Ltd | 0.26% | 42K | $125,428 | +42,090 (0.0%) | June 30, 2026 |
| 20 | Jump Financial LLC | 0.25% | 41K | $122,180 | +41,000 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 19 holders added 2.8M shares and 1 cut 287K.
IPWR top mutual fund and ETF holders
15 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.84% | 468K | $1.4M | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.37% | 61K | $181,220 | +3,929 (+6.9%) | August 31, 2026 |
| 3 | iShares Micro-Cap ETF | 0.26% | 42K | $126,298 | −292 (−0.7%) | September 30, 2026 |
| 4 | Invesco NASDAQ Future Gen 200 ETF | 0.15% | 24K | $72,897 | — | September 30, 2026 |
| 5 | Fidelity Series Total Market Index | 0.13% | 21K | $62,291 | — | August 31, 2026 |
| 6 | Fidelity Total Market Index | 0.11% | 18K | $53,983 | +1,264 (+7.5%) | August 31, 2026 |
| 7 | Vanguard Balanced Index Inv | 0.04% | 6,962 | $20,747 | — | August 31, 2026 |
| 8 | Vanguard MStar Inst Ttl StkMktIdxInstlPl | 0.04% | 6,716 | $20,014 | — | August 31, 2026 |
| 9 | DFA US Social Core Equity 2 Portfolio | 0.02% | 3,085 | $9,193 | +3,085 (0.0%) | August 31, 2026 |
| 10 | Dimensional US Core Equity 2 ETF | 0.02% | 2,821 | $8,407 | — | September 30, 2026 |
| 11 | DFA US Micro Cap I | 0.02% | 2,732 | $8,141 | +2,732 (0.0%) | August 31, 2026 |
| 12 | 1290 VT Micro Cap K | 0.01% | 2,275 | $6,780 | — | August 31, 2026 |
| 13 | Vanguard U.S. Eq Idx £ Acc | 0.01% | 2,138 | $6,371 | — | August 31, 2026 |
| 14 | Dimensional US Core Equity USD Acc | 0.01% | 1,820 | $5,424 | — | August 31, 2026 |
| 15 | Dimensional Global Core Equity USD Acc | <0.01% | 811 | $2,417 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
IPWR insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-25 | David M Somo | Buy | $2.75 | 90,909 | $250,000 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
IPWR shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IPWR
Institutional investors own 40.3% of Ideal Power's shares and insiders 4.78%. The largest holder is Awm Investment Company Inc with 8.19% of the shares (1.3M), as of June 30, 2026. Among the top 20 institutions, 19 added shares and 1 reduced their stake in the latest filings. Short interest is 3.14% of the float, or 2.49 days of average trading volume. The share count rose 1,202.3% since 2014.
Related: IPWR analyst forecast, IPWR key metrics. See the IPWR stock overview for the latest quote and news.
IPWR ownership FAQ
Who owns the most Ideal Power stock?
The largest shareholders of Ideal Power are Awm Investment Company Inc (8.19%), AIGH Capital Management, LLC (5.44%), The Goldman Sachs Group Inc (4.02%), Vanguard Capital Management, LLC (3.71%), Stifel Financial Corp (2.85%).
What percentage of Ideal Power is owned by institutions?
Institutions hold 40.3% of Ideal Power's shares outstanding; insiders hold 4.78%.
Which funds own Ideal Power?
The largest fund holders of Ideal Power are Vanguard MStar Total Stk Mkt Idx Invest (2.84%), Fidelity Extended Market Index (0.37%), iShares Micro-Cap ETF (0.26%), Invesco NASDAQ Future Gen 200 ETF (0.15%), Fidelity Series Total Market Index (0.13%).
What is Ideal Power's short interest?
508K shares of Ideal Power were sold short, 3.14% of the float; at the average daily volume it would take 2.49 days to cover.
Are insiders buying or selling Ideal Power?
Of the latest 1 reported insider transactions in Ideal Power (since February 25, 2026), 1 were purchases and 0 were sales.
How many shares of Ideal Power are outstanding?
Ideal Power has 16.4M shares outstanding, of which 13.2M are in the public float.