Ideal Power (IPWR) director adds 5,250 shares in open-market buy

Rhea-AI Filing Summary

Ideal Power Inc. director Michael C. Turmelle bought 5,250 shares of Common Stock in an open-market transaction at $7.60 per share. Following this purchase, he directly holds 83,582 shares of Ideal Power stock, making the trade a relatively small addition to his existing position.

Insider Trade Summary

Net Buyer: 5,250 shares ($39,900)

Net Buy 1 txn

Insider TURMELLE MICHAEL C

Role null

Bought 5,250 shs ($40K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	5,250	$7.60	$40K

Holdings After Transaction: Common Stock — 83,582 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 5,250 shares Purchase price: $7.60 per share Shares owned after transaction: 83,582 shares +1 more

4 metrics

Shares purchased 5,250 shares Open-market purchase of Common Stock

Purchase price $7.60 per share Price paid in the reported transaction

Shares owned after transaction 83,582 shares Direct holdings after purchase

Net buy shares 5,250 shares Net change in position in this Form 4

Key Terms

open-market purchase, Common Stock, Form 4

3 terms

open-market purchase financial

"classified as an open-market purchase at $7.60 per share"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

"bought 5,250 shares of Common Stock in the transaction"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"as disclosed in the Form 4 insider filing"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

TURMELLE MICHAEL C

(Last) (First) (Middle)

5508 HIGHWAY 290 WEST

SUITE 120

(Street)

AUSTIN TEXAS 78735

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ideal Power Inc. [ IPWR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/26/2026		P		5,250	A	$7.6	83,582	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Timothy Burns, Attorney-in-Fact	06/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Ideal Power (IPWR) director Michael Turmelle report?

Michael C. Turmelle reported buying 5,250 Ideal Power shares in an open-market transaction. He paid $7.60 per share, and the transaction involved Common Stock, as disclosed in the Form 4 insider filing.

At what price did the Ideal Power (IPWR) director buy shares?

The director bought the shares at $7.60 per share. This price applies to all 5,250 shares purchased in the reported open-market transaction, as recorded in the Form 4 filed for Ideal Power Inc.

How many Ideal Power (IPWR) shares does Michael Turmelle own after this trade?

After the reported purchase, Michael C. Turmelle directly owns 83,582 Ideal Power shares. This total includes his prior holdings plus the additional 5,250 shares acquired in the latest open-market transaction.

Was the Ideal Power (IPWR) insider transaction a purchase or a sale?

The transaction was a purchase, classified as an open-market transaction. The Form 4 shows a buy of 5,250 Common Stock shares at $7.60 per share, with no concurrent sales reported in this filing.

What type of security did the Ideal Power (IPWR) director acquire?

The director acquired Ideal Power Common Stock. The Form 4 specifies a non-derivative transaction, meaning he bought actual shares rather than options or other derivative securities in this reported trade.