Pro-Dex CFO sells 2,300 shares around $61

PRO DEX INC (PDEX) reported that Chief Financial Officer Alisha Charlton sold a total of 2,300 shares of common stock on September 9, 2026 in open-market transactions.

Rhea-AI Filing Summary

PRO DEX INC (PDEX) reported that Chief Financial Officer Alisha Charlton sold a total of 2,300 shares of common stock on September 9, 2026 in open-market transactions. The sales consisted of 1,500 shares at a weighted average price of $61.05 and 800 shares at a weighted average price of $61.76. The 1,500-share sale occurred in multiple trades between $60.59 and $61.41, and the 800-share sale in trades between $61.674 and $61.92. No Rule 10b5-1 trading plan is reported for these transactions.

Insider Trade Summary

Net Seller: 2,300 shares

Net Sell 2 txns

Insider Charlton Alisha

Role Chief Financial Officer

Sold 2,300 shs ($141K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	1,500	$61.05	$92K
Sale	Common Stock F2	800	$61.76	$49K

Holdings After Transaction: Common Stock — 21,870 shares (Direct)

Footnotes (2)

1. F1. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $60.59 to $61.41, inclusive. The reporting person undertakes to provide Pro-Dex, Inc., any security holder of Pro-Dex, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form.
2. F2. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $61.674 to $61.92, inclusive. The reporting person undertakes to provide Pro-Dex, Inc., any security holder of Pro-Dex, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form.

Key Figures

Shares sold (total): 2,300 shares Shares sold (first transaction): 1,500 shares Weighted average price (first transaction): $61.05 per share +4 more

7 metrics

Shares sold (total) 2,300 shares Common stock sold by the CFO on September 9, 2026

Shares sold (first transaction) 1,500 shares Common stock sale on September 9, 2026 at weighted average price

Weighted average price (first transaction) $61.05 per share 1,500-share common stock sale on September 9, 2026

Price range (first transaction) $60.59–$61.41 per share Multiple trades comprising the 1,500-share sale

Shares sold (second transaction) 800 shares Common stock sale on September 9, 2026 at weighted average price

Weighted average price (second transaction) $61.76 per share 800-share common stock sale on September 9, 2026

Price range (second transaction) $61.674–$61.92 per share Multiple trades comprising the 800-share sale

Key Terms

weighted average price, open market, Rule 10b5-1

3 terms

weighted average price financial

"The price reported on Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market financial

"Sale in open market or private transaction"

An open market is a system where buying and selling of goods, services, or financial assets happen freely without restrictions or special controls. For investors, it means they can trade assets easily and quickly, which helps determine fair prices based on supply and demand. This environment encourages transparency and competition, making it easier to buy or sell with confidence.

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for these transactions"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transaction did PDEX report for its Chief Financial Officer?

PDEX reported that Chief Financial Officer Alisha Charlton sold a total of 2,300 shares of common stock in open-market transactions on September 9, 2026, split between 1,500 shares and 800 shares at different weighted average prices.

How many PDEX shares did the CFO sell on September 9, 2026 and at what prices?

The CFO sold 1,500 shares at a weighted average price of $61.05 and 800 shares at a weighted average price of $61.76 on September 9, 2026, all in open-market transactions.

What were the trading price ranges for the PDEX CFO’s September 9, 2026 stock sales?

For the 1,500-share sale, trades occurred between $60.59 and $61.41. For the 800-share sale, trades occurred between $61.674 and $61.92, with the reported prices being weighted averages of those ranges.

Were the PDEX CFO’s September 9, 2026 stock sales under a Rule 10b5-1 plan?

No. The filing indicates that no Rule 10b5-1 trading plan is reported in connection with the Chief Financial Officer’s stock sales on September 9, 2026.

Does the Form 4 state how many PDEX shares the CFO held after these sales?

No. The transaction entries do not report a total shares following transaction figure, so the post-transaction holdings are not disclosed in this Form 4 data.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 08:19 PM Accepted by SEC EDGAR 09/10/2026 - 08:19 PM Learn about SEC filing dates

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^*

Charlton Alisha

(Last) (First) (Middle)

C/O 2361 MCGAW AVENUE

(Street)

IRVINE CALIFORNIA 92614

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PRO DEX INC [ PDEX ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026

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	09/09/2026		S		1,500	D	$61.05(1)	22,670	D
Common Stock	09/09/2026		S		800	D	$61.76(2)	21,870	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:

1. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $60.59 to $61.41, inclusive. The reporting person undertakes to provide Pro-Dex, Inc., any security holder of Pro-Dex, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form.

2. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $61.674 to $61.92, inclusive. The reporting person undertakes to provide Pro-Dex, Inc., any security holder of Pro-Dex, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form.

	/s/ Alisha Charlton	09/10/2026
	** 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)