PDEX

SEC source: 0001553350-21-000084 · ownership.xml · derivative · entry 1

Farrell William James III · CIK 0001568046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Common Stock · 4,000 shares

Expires 2032-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000083 · ownership.xml · derivative · entry 5

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,250

Underlying: Common Stock · 4,250 shares

Expires 2040-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000083 · ownership.xml · derivative · entry 4

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,000

Underlying: Common Stock · 4,250 shares

Expires 2038-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000083 · ownership.xml · derivative · entry 3

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,750

Underlying: Common Stock · 4,250 shares

Expires 2036-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000083 · ownership.xml · derivative · entry 2

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,500

Underlying: Common Stock · 4,250 shares

Expires 2034-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000083 · ownership.xml · derivative · entry 1

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,250

Underlying: Common Stock · 4,250 shares

Expires 2032-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000082 · ownership.xml · derivative · entry 5

HOVDA DAVID · CIK 0001237938 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,500

Underlying: Common Stock · 4,000 shares

Expires 2040-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000082 · ownership.xml · derivative · entry 4

HOVDA DAVID · CIK 0001237938 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 4,000 shares

Expires 2038-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000082 · ownership.xml · derivative · entry 3

HOVDA DAVID · CIK 0001237938 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,500

Underlying: Common Stock · 4,000 shares

Expires 2036-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000082 · ownership.xml · derivative · entry 2

HOVDA DAVID · CIK 0001237938 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,500

Underlying: Common Stock · 4,000 shares

Expires 2034-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000082 · ownership.xml · derivative · entry 1

HOVDA DAVID · CIK 0001237938 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,500

Underlying: Common Stock · 4,000 shares

Expires 2032-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000081 · ownership.xml · derivative · entry 5

Philp Katrina Marie Kramer · CIK 0001797788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 4,000 shares

Expires 2040-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000081 · ownership.xml · derivative · entry 4

Philp Katrina Marie Kramer · CIK 0001797788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,000

Underlying: Common Stock · 4,000 shares

Expires 2038-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000081 · ownership.xml · derivative · entry 3

Philp Katrina Marie Kramer · CIK 0001797788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,000

Underlying: Common Stock · 4,000 shares

Expires 2036-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000081 · ownership.xml · derivative · entry 2

Philp Katrina Marie Kramer · CIK 0001797788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,000

Underlying: Common Stock · 4,000 shares

Expires 2034-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000081 · ownership.xml · derivative · entry 1

Philp Katrina Marie Kramer · CIK 0001797788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Common Stock · 4,000 shares

Expires 2032-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000080 · ownership.xml · derivative · entry 5

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 18,000 shares

Expires 2040-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000080 · ownership.xml · derivative · entry 4

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,000

Underlying: Common Stock · 18,000 shares

Expires 2038-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000080 · ownership.xml · derivative · entry 3

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,000

Underlying: Common Stock · 18,000 shares

Expires 2036-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000080 · ownership.xml · derivative · entry 2

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,000

Underlying: Common Stock · 18,000 shares

Expires 2034-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-21-000080 · ownership.xml · derivative · entry 1

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,000

Underlying: Common Stock · 18,000 shares

Expires 2032-07-01

F1 · security: These options were awarded under Pro-Dex's 2016 Equity Incentive Plan. The percentage of options that may vest and become exercisable, if any, are 100%, 50%, and 25%, respectively, based upon the volume-weighted average price of Pro-Dex's common stock equaling or exceeding the applicable exercise price for the 60 trading days immediately preceding the date the option becomes exercisable, six months from the date the option becomes exercisable, or twelve months from the date the option becomes exercisable, respectively. Explanation of Responses:

SEC source: 0001553350-20-001052 · ownership.xml · nonDerivative · entry 2

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 360,846

SEC source: 0001553350-20-001052 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 361,046

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.25 to 38.25, 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.

SEC source: 0001553350-20-001047 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 366,578

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.25 to 37.58, 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.

SEC source: 0001553350-20-001035 · ownership.xml · nonDerivative · entry 2

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 372,601

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.25 to $37.51, 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.

SEC source: 0001553350-20-001035 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 374,807

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.25 to 38.21, 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.

SEC source: 0001553350-20-000993 · ownership.xml · nonDerivative · entry 5

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 387,912

F4 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.55 to $37.96, 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.

SEC source: 0001553350-20-000993 · ownership.xml · nonDerivative · entry 4

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 389,112

SEC source: 0001553350-20-000993 · ownership.xml · nonDerivative · entry 3

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 389,115

F3 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $37.50 to $38.42, 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.

SEC source: 0001553350-20-000993 · ownership.xml · nonDerivative · entry 2

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 417,608

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $39.195 to $39.515, 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.

SEC source: 0001553350-20-000993 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 418,508

F1 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $38.00 to $38.95, 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.

SEC source: 0001553350-20-000988 · farrell4.xml · nonDerivative · entry 2

Farrell William James III · CIK 0001568046 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By IRA

Disclosed balance after: 5,600

SEC source: 0001214659-20-008075 · marketforms-49747.xml · nonDerivative · entry 2

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,910

SEC source: 0001214659-20-008075 · marketforms-49747.xml · nonDerivative · entry 1

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,510

SEC source: 0001553350-20-000865 · charlton4.xml · nonDerivative · entry 1

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,752

SEC source: 0001553350-20-000855 · vankirk4.xml · derivative · entry 2

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2020-10-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001553350-20-000855 · vankirk4.xml · nonDerivative · entry 1

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,175

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001553350-20-000684 · vankirk4.xml · nonDerivative · entry 1

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,175

F1 · kind: These purchases were made pursuant to an Employee Stock Purchase Plan in exempt transactions pursuant to Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001553350-20-000637 · vankirk4.xml · nonDerivative · entry 4

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,869

F3 · kind: Represents shares withheld to satisfy tax withholding obligations of the reporting person.

SEC source: 0001553350-20-000637 · vankirk4.xml · nonDerivative · entry 3

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,978

F2 · kind: Represents shares issued under a performance award agreement granted to the reporting person on December 5, 2017, pursuant to the Pro-Dex, Inc. 2016 Equity Incentive Plan.

SEC source: 0001553350-20-000636 · charlton4.xml · nonDerivative · entry 2

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,252

F2 · kind: Represents shares withheld to satisfy tax withholding obligations of the reporting person.

SEC source: 0001553350-20-000636 · charlton4.xml · nonDerivative · entry 1

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,778

F1 · kind: Represents shares issued under a performance award agreement granted to the reporting person on December 5, 2017, pursuant to the Pro-Dex, Inc. 2016 Equity Incentive Plan.

SEC source: 0001553350-20-000148 · charlton4.xml · nonDerivative · entry 1

Charlton Alisha · CIK 0001431777 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,478

SEC source: 0001553350-20-000637 · vankirk4.xml · nonDerivative · entry 2

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,178

F1 · kind: These purchases were made pursuant to an Employee Stock Purchase Plan in exempt transactions pursuant to Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001553350-20-000637 · vankirk4.xml · nonDerivative · entry 1

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,818

F1 · kind: These purchases were made pursuant to an Employee Stock Purchase Plan in exempt transactions pursuant to Rule 16b-3(c) and Rule 16b-3(d).

SEC source: 0001553350-19-000522 · vankirk4.xml · nonDerivative · entry 3

Van Kirk Richard Lee Jr · CIK 0001575056 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,597

SEC source: 0001553350-19-000508 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 425,111

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting persons on December 4, 2018.

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $17.50 to $17.76, 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.

SEC source: 0001553350-19-000488 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 429,023

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting persons on December 4, 2018.

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $17.50 to $17.69, 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.

SEC source: 0001553350-19-000458 · ownership.xml · nonDerivative · entry 1

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 430,123

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting persons on December 4, 2018.

F2 · price: The price reported on Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $17.50 to $17.95, 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.

SEC source: 0001553350-19-000439 · ownership.xml · nonDerivative · entry 22

CABILLOT RAYMOND E · CIK 0001361476 · Director · 10% owner

FARNAM STREET PARTNERS LP /MN · CIK 0001058465 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Farnam Street Partners, L.P

Disclosed balance after: 439,100

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting persons on December 4, 2018.