Pro-Dex CEO sells 19K shares around $60

Available on EDGAR 09/10/2026 - 08:21 PM EDT Accepted by SEC EDGAR 09/10/2026 - 08:20 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

PRO DEX INC (PDEX) reported that its Chief Executive Officer and director, Richard Lee Van Kirk Jr, sold a total of 19,235 shares of common stock on September 9, 2026 in a series of open-market transactions under a Rule 10b5-1 trading plan adopted on May 28, 2026, at weighted average prices generally in the high-$50s to mid-$60s per share, each calculated from multiple trades within disclosed price ranges.

Insider Trade Summary 10b5-1

Net Seller: 19,235 shares

Net Sell 9 txns

Insider Van Kirk Richard Lee Jr

Role Chief Executive Officer

Sold 19,235 shs ($1.17M)

Share of Position Sold 19.4%

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	2,160	$58.92	$127K
Sale	Common Stock F1, F3	2,691	$59.84	$161K
Sale	Common Stock F1, F4	4,274	$60.72	$260K
Sale	Common Stock F1, F5	1,157	$61.88	$72K
Sale	Common Stock F1, F6	935	$62.93	$59K
Sale	Common Stock F1, F7	2,144	$63.85	$137K
Sale	Common Stock F1, F8	300	$64.70	$19K
Sale	Common Stock F1, F9	806	$58.659	$47K
Sale	Common Stock F1, F10	4,768	$59.45	$283K

Holdings After Transaction: Common Stock — 79,993 shares (Direct)

Holdings Before and After: Common Stock, 99,228 to 79,993 shares (Direct)

Other Insiders: 1 other insider reported open-market sales of this stock in the 30 days up to this filing.

Footnotes (10)

1. F1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 28, 2026.
2. F2. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $58.36 to $59.33, 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.
3. F3. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $59.38 to $60.24, 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 (3) to this Form.
4. F4. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $60.38 to $61.24, 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 (4) to this Form.
5. F5. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $61.49 to $62.36, 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 (5) to this Form.
6. F6. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $62.61 to $63.60, 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 (6) to this Form.
7. F7. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $63.65 to $64.46, 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 (7) to this Form.
8. F8. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $64.70 to $64.71, 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 (8) to this Form.
9. F9. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $58.04 to $59.00, 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 (9) to this Form.
10. F10. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $59.10 to $60.02, 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 (10) to this Form.

Key Figures

Shares sold: 19,235 shares Number of sale transactions: 9 transactions Representative weighted average prices: $58.92–$64.70 per share +3 more

6 metrics

Shares sold 19,235 shares Total common shares sold by the CEO on September 9, 2026

Number of sale transactions 9 transactions Separate non-derivative sales of PDEX common stock on September 9, 2026

Representative weighted average prices $58.92–$64.70 per share Filed weighted average prices across the nine reported sales

Underlying trade price range $58.04–$64.71 per share Lowest and highest individual trade prices disclosed in the footnote ranges

Rule 10b5-1 plan adoption date May 28, 2026 Date the CEO adopted the trading plan governing these sales

Net share direction -19,235 shares Net effect of reported insider common stock trades in this Form 4

Key Terms

Rule 10b5-1 trading plan, weighted average price, open market or private transaction

3 terms

Rule 10b5-1 trading plan regulatory

"sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

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 or private transaction financial

"Sale in open market or private transaction"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did PDEX disclose in this Form 4?

PDEX disclosed that CEO and director Richard Lee Van Kirk Jr sold 19,235 shares of common stock on September 9, 2026 in a series of open-market transactions, all reported as non-derivative sales of common stock.

At what prices did the PDEX CEO sell the 19,235 shares?

Each sale was reported at a weighted average price, including prices such as $58.92, $59.84, $60.72, $61.88, $62.93, $63.85, $64.70, $58.659 and $59.45 per share, based on multiple trades within specified intraday price ranges.

Were the September 9, 2026 PDEX insider sales under a Rule 10b5-1 plan?

Yes. A footnote states the sales were effected under a Rule 10b5-1 trading plan adopted by the reporting person on May 28, 2026, indicating the trades were pre-arranged according to that plan.

How many separate sale transactions did the PDEX CEO report?

The Form 4 lists nine separate non-derivative sale transactions in PDEX common stock on September 9, 2026, all coded as open-market or private sales of common stock.

What were the intraday price ranges for the PDEX CEO’s sales?

Footnotes state that the weighted average prices reflect multiple trades in ranges including $58.04–$59.00, $58.36–$59.33, $59.38–$60.24, $60.38–$61.24, $61.49–$62.36, $62.61–$63.60, $63.65–$64.46, $64.70–$64.71 and $59.10–$60.02 per share.

What role does the reporting person hold at PRO DEX INC (PDEX)?

The reporting person, Richard Lee Van Kirk Jr, is identified as both a director and an officer, serving as the company’s Chief Executive Officer at the time of the reported transactions.

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

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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).

X

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^*

Van Kirk Richard Lee Jr

(Last) (First) (Middle)

2361 MCGAW ST

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive 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)		2,160	D	$58.92(2)	97,068	D
Common Stock	09/09/2026		S(1)		2,691	D	$59.84(3)	94,377	D
Common Stock	09/09/2026		S(1)		4,274	D	$60.72(4)	90,103	D
Common Stock	09/09/2026		S(1)		1,157	D	$61.88(5)	88,946	D
Common Stock	09/09/2026		S(1)		935	D	$62.93(6)	88,011	D
Common Stock	09/09/2026		S(1)		2,144	D	$63.85(7)	85,867	D
Common Stock	09/09/2026		S(1)		300	D	$64.7(8)	85,567	D
Common Stock	09/09/2026		S(1)		806	D	$58.659(9)	84,761	D
Common Stock	09/09/2026		S(1)		4,768	D	$59.45(10)	79,993	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 sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 28, 2026.

2. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $58.36 to $59.33, 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.

3. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $59.38 to $60.24, 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 (3) to this Form.

4. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $60.38 to $61.24, 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 (4) to this Form.

5. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $61.49 to $62.36, 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 (5) to this Form.

6. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $62.61 to $63.60, 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 (6) to this Form.

7. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $63.65 to $64.46, 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 (7) to this Form.

8. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $64.70 to $64.71, 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 (8) to this Form.

9. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $58.04 to $59.00, 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 (9) to this Form.

10. The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $59.10 to $60.02, 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 (10) to this Form.

	/s/ Alisha Charlton as attorney-in-fact for Richard Van Kirk	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)