[Form 4] Shimmick Corporation Insider Trading Activity

Rhea-AI Filing Summary

Mitchell B. Goldsteen, a Director and 10% Owner of Shimmick Corp (SHIM), reported multiple sales transactions of common stock executed through a pre-established Rule 10b5-1 trading plan from June 23-25, 2025. The transactions included:

• June 23: Sale of 6,000 shares at weighted average price of $1.60
• June 24: Sale of 4,250 shares at weighted average price of $1.66
• June 25: Sale of 900 shares at weighted average price of $1.59

Following these transactions, Goldsteen indirectly owns 21,392,814 shares through GOHO LLC, where he serves as sole managing member. The sales were executed according to a Rule 10b5-1 plan established on August 20, 2024. Goldsteen disclaims beneficial ownership of these securities except for his pecuniary interest. The transactions demonstrate systematic selling activity by a significant insider while maintaining substantial holdings.

Positive

• None.

Negative

• Director and 10% owner Mitchell Goldsteen sold a total of 11,150 shares through planned 10b5-1 transactions at prices between $1.55-$1.72, though maintaining a significant position of over 21.3M shares through GOHO, LLC

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^*

Goldsteen Mitchell B.

(Last) (First) (Middle)

C/O SHIMMICK CORPORATION

530 TECHNOLOGY DRIVE, SUITE 300

(Street)

IRVINE CA 92618

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Shimmick Corp [ SHIM ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
06/23/2025

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

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

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

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, par value $0.01 per share	06/23/2025	06/23/2025	S(1)		6,000	D	$1.6(2)	21,397,964	I	By GOHO, LLC(3)
Common Stock, par value $0.01 per share	06/24/2025	06/24/2025	S(1)		4,250	D	$1.66(4)	21,393,714	I	By GOHO, LLC(3)
Common Stock, par value $0.01 per share	06/25/2025	06/25/2025	S(1)		900	D	$1.59(5)	21,392,814	I	By GOHO, LLC(3)

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 in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 20, 2024.

2. The price reported in column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $1.55 to $1.57, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided.

3. The reporting person owns the securities indirectly through GOHO, LLC, of which Mr. Goldsteen is the sole managing member. Mr. Goldsteen disclaims beneficial ownership of these securities, except to the extent of any pecuniary interest therein.

4. The price reported in column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $1.60 to $1.72, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided.

5. The price reported in column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $1.56 to $1.62, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided.

	/s/ John Carpenter, Power of Attorney for Mitchell B. Goldsteen	06/25/2025
	** 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.

FAQ

How many SHIM shares did Mitchell Goldsteen sell in June 2025?

Mitchell Goldsteen sold a total of 11,150 shares of SHIM common stock across three transactions: 6,000 shares on June 23, 4,250 shares on June 24, and 900 shares on June 25, 2025.

What was the price range of SHIM stock sales by Goldsteen in June 2025?

The shares were sold at varying prices across three days: June 23 ($1.55-$1.57), June 24 ($1.60-$1.72), and June 25 ($1.56-$1.62), with weighted average prices of $1.60, $1.66, and $1.59 respectively.

How many SHIM shares does Mitchell Goldsteen own after the June 2025 transactions?

After the reported transactions, Mitchell Goldsteen indirectly owns 21,392,814 shares through GOHO, LLC, where he serves as the sole managing member.

Was Mitchell Goldsteen's SHIM stock sale part of a planned transaction?

Yes, the sales were executed pursuant to a Rule 10b5-1 sales plan that was adopted by Goldsteen on August 20, 2024, indicating these were pre-planned transactions.

What positions does Mitchell Goldsteen hold at SHIM?

Mitchell Goldsteen serves as both a Director and a 10% Owner of Shimmick Corporation (SHIM), as indicated in the Form 4 filing.