1.

Name of Reporting Persons

Alyn R. Holt

2.

Check the appropriate box if a member of a group (see instructions)

(a)  [X]         (b)  [   ]

3.

SEC use only

4.

Source of Funds (see instructions)

PF

5.

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)     ____

6.

Citizen or Place of Organization

U.S.A.

Number of
Shares
Beneficially
Owned By
Each
Reporting
Person With

7.

Sole Voting Power
998,804

8.

Shared Voting Power
265,427

9.

Sole Dispositive Power
998,804

10.

Shared Dispositive Power
704,025

11.

Aggregate Amount Beneficially Owned by Each Reporting Person

1,702,829

12.

Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares (see instructions)

[   ]

13.

Percent of Class Represented by amount in Row (11)

16.4%

14.

Type of Reporting Person*

IN

1.

Name of Reporting Persons

Connie Holt GST Exempt Residuary Trust u/a dated 12/10/14

2.

Check the appropriate box if a member of a group (see instructions)

(a)  [X]         (b)  [   ]

3.

SEC use only

4.

Source of Funds (see instructions)

OO

5.

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)     ____

6.

Citizen or Place of Organization

New Jersey

Number of
Shares
Beneficially
Owned By
Each
Reporting
Person With

7.

Sole Voting Power
-0-

8.

Shared Voting Power
150,427

9.

Sole Dispositive Power
-0-

10.

Shared Dispositive Power
150,427

11.

Aggregate Amount Beneficially Owned by Each Reporting Person

150,427

12.

Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares (see instructions)

[   ]

13.

Percent of Class Represented by amount in Row (11)

1.4%

14.

Type of Reporting Person*

OO

1.

Name of Reporting Persons

Kristen Holt Thompson

2.

Check the appropriate box if a member of a group (see instructions)

(a)  [X]         (b)  [   ]

3.

SEC use only

4.

Source of Funds (see instructions)

OO

5.

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)     ____

6.

Citizen or Place of Organization

U.S.A.

Number of
Shares
Beneficially
Owned By
Each
Reporting
Person With

7.

Sole Voting Power
178,598

8.

Shared Voting Power
260,000

9.

Sole Dispositive Power
-0-

10.

Shared Dispositive Power
438,598

11.

Aggregate Amount Beneficially Owned by Each Reporting Person

438,598

12.

Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares (see instructions)

[   ]

13.

Percent of Class Represented by amount in Row (11)

4.2%

14.

Type of Reporting Person*

IN

1.

Name of Reporting Persons

Holt Charitable Remainder Unitrust u/a Dated 5/22/00

2.

Check the appropriate box if a member of a group (see instructions)

(a)  [X]         (b)  [   ]

3.

SEC use only

4.

Source of Funds (see instructions)

OO

5.

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)     ____

6.

Citizen or Place of Organization

New Jersey

Number of
Shares
Beneficially
Owned By
Each
Reporting
Person With

7.

Sole Voting Power
-0-

8.

Shared Voting Power
115,000

9.

Sole Dispositive Power
-0-

10.

Shared Dispositive Power
115,000

11.

Aggregate Amount Beneficially Owned by Each Reporting Person

115,000

12.

Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares (see instructions)

[   ]

13.

Percent of Class Represented by amount in Row (11)

1.1%

14.

Type of Reporting Person*

OO

1.

Name of Reporting Persons

Alyn R. Holt Trust fbo Kristen Holt Thompson u/a Dated 4/14/03

2.

Check the appropriate box if a member of a group (see instructions)

(a)  [X]         (b)  [   ]

3.

SEC use only

4.

Source of Funds (see instructions)

OO

5.

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)     ____

6.

Citizen or Place of Organization

New Jersey

Number of
Shares
Beneficially
Owned By
Each
Reporting
Person With

7.

Sole Voting Power
-0-

8.

Shared Voting Power
260,000

9.

Sole Dispositive Power
-0-

10.

Shared Dispositive Power
260,000

11.

Aggregate Amount Beneficially Owned by Each Reporting Person

260,000

12.

Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares (see instructions)

[   ]

13.

Percent of Class Represented by amount in Row (11)

2.5%

14.

Type of Reporting Person*

OO

Item 1.

Security and Issuer

The Securities consist of shares of the Common Stock, par value $0.01, of inTEST Corporation, a Delaware corporation (the "Corporation"), the principal executive office of which is 804 East Gate Drive, Suite 200, Mount Laurel, NJ 08054.

Item 2.

Identity and Background

a.

This Sixth Amendment is being filed by Alyn R. Holt and Kristen Holt Thompson (collectively, the "Holt Family Members"), the Holt Charitable Remainder Unitrust u/a Dated 5/22/00 (the "2000 Trust"), the Alyn R. Holt Trust fbo Kristen Holt Thompson u/a Dated 4/14/03 (the "2003 Trust"), and the Connie Holt GST Exempt Residuary Trust u/a Dated 12/10/14 (the "2014 Trust"; and collectively with the 2000 Trust and the 2003 Trust, the "Holt Trusts"; and the Holt Family Members and the Holt Trusts, collectively, the "Reporting Persons").

Each of the Reporting Persons directly owns shares of the Securities and may be deemed to share either voting or investment power, or both, and may be deemed to be a "group" within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). An agreement among the Reporting Persons to file this Schedule 13D jointly in accordance with Rule 13d-1(k) of the Exchange Act is filed herewith as Exhibit 99.1. Each of the Reporting Persons disclaims beneficial ownership (within the meaning of Rule 13d-3 under the Exchange Act) of all of the shares that may be deemed to be beneficially owned by it except with respect to any shares directly owned by the respective Reporting Person or for which the Reporting Person has beneficial ownership by virtue of serving as trustee of a trust. Neither the filing of this Schedule 13D nor any of its contents shall be deemed to constitute an admission that any of the Reporting Persons is the beneficial owner of any shares not directly owned by the respective Reporting Person.

b.

The principal business address for each member of the Reporting Persons is: c/o inTEST Corporation, 804 East Gate Dr., Suite 200, Mt. Laurel, NJ 08054.

c.

Alyn R. Holt is the Executive Chairman of the Corporation. Kristen Holt Thompson is not employed.

d.

During the last five years, none of the Reporting Persons has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

e.

During the last five years, none of the Reporting Persons was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

f.

Each of the Holt Family Members is a citizen of the U.S.A. Each of the Holt Trusts was formed under the laws of the State of New Jersey.

Item 3.

Source and Amount of Funds or Other Consideration

The shares covered by this Schedule 13D/A were acquired by the Reporting Persons at various times between 1997 and 2008, except that the shares of the 2014 Trust were acquired by the 2014 Trust by testamentary transfer upon the death of Connie E. Holt in 2014. Funds used to acquire the shares were personal funds, excepting that certain of the shares were acquired by the Reporting Persons as gifts, donations, or shares awarded as part of an employee's compensation.

Item 4

Purpose of Transaction

The shares were acquired by the Reporting Persons for investment purposes. The Reporting Persons do not have any plans or proposals which relate to or would result in any of the following, except as noted:

a.

The acquisition by any person of additional securities of the issuer, or the disposition of securities of the issuer, except that the Reporting Persons may from time to time agree to coordinate the sale of shares owned by one or more of them, which sales may be conducted in accordance with Rule 144 under the Securities Act or otherwise in compliance with the Securities Act;

b.

An extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the issuer or any of its subsidiaries;

c.

A sale or transfer of a material amount of assets of the issuer or any of its subsidiaries;

d.

Any change in the present board of directors or management of the issuer, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the board;

e.

Any material change in the present capitalization or dividend policy of the issuer;

f.

Any other material change in the issuer's business or corporate structure, including but not limited to, if the issuer is a registered closed-end investment company, any plans or proposals to make any changes in its investment policy for which a vote is required by Section 13 of the Investment Company Act of 1940;

g.

Changes in the issuer's charter, bylaws or instruments corresponding thereto or other actions which may impede the acquisition of control of the issuer by any person;

h.

Causing a class of securities of the issuer to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association;

i.

A class of equity securities of the issuer becoming eligible for termination of registration pursuant to Section 12(9)(4) of the Act; or

j.

Any action similar to any of those enumerated above.

Item 5.

Interest in Securities of the Issuer.

a.

See Items 11 and 13 on the cover page.

b.

See Items 7 through 10 on the cover page.

c.

During the past sixty days, Alyn R. Holt sold 103,768 shares of the Securities.

d.

No person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported on herein, other than the direct owner of such shares.

e.

Not applicable.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

There are no contracts, arrangements, understandings or relationships (legal or otherwise) among the persons named in Item 2 and between such persons and any person with respect to any securities of the Corporation, other than understandings regarding the coordination of sales of shares owned by one or more of them from time to time, which sales may be conducted in accordance with Rule 144 under the Securities Act or otherwise in compliance with the Securities Act.

Item 7.

Material to be Filed as Exhibits

Exhibit 99.1

Joint Filing Agreement dated December 22, 2016, by and among the Reporting Persons.

Exhibit 99.2

Power of Attorney.

By:

/s/ Alyn R. Holt
Alyn R. Holt

By:

/s/ Alyn R. Holt
Alyn R. Holt, Trustee
Holt Charitable Remainder Unitrust u/a Dated 5/22/00

By:

/s/ Kristen Holt Thompson
Kristen Holt Thompson

By:

/s/ Kristen Holt Thompson
Kristen Holt Thompson, Trustee
Alyn R. Holt Trust fbo Kristen Holt Thompson u/a Dated 4/14/03

By:

/s/ Alyn R. Holt
Alyn R. Holt, Trustee
Connie Holt GST Exempt Residuary Trust u/a Dated 12/10/14