Insider Stefan Berger files initial Form 3 at Meridian3 Industrials (MIACU)

Rhea-AI Filing Summary

Meridian3 Industrials Acquisition Corp director and Chief Investment Officer Stefan Berger filed an initial Form 3 insider ownership report. This filing establishes his status as a reporting person for the company but shows no reported buy, sell, or derivative transactions at this time.

Key Figures

Buy transactions: 0 transactions Sell transactions: 0 transactions Derivative transactions: 0 transactions +1 more

4 metrics

Buy transactions 0 transactions BuyCount in transaction summary

Sell transactions 0 transactions SellCount in transaction summary

Derivative transactions 0 transactions DerivativeTransactionCount in transaction summary

Net buy/sell direction neutral NetBuySellDirection in transaction summary

Key Terms

Form 3, reporting person, Chief Investment Officer

3 terms

Form 3 regulatory

"filed an initial Form 3 insider ownership report"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

reporting person regulatory

"establishes his status as a reporting person for the company"

Chief Investment Officer financial

"director and Chief Investment Officer of Meridian3 Industrials"

A chief investment officer (CIO) is the person responsible for managing a company or organization’s investments and financial strategies. They make key decisions about where to put money to help grow wealth or achieve financial goals, much like a coach plans a team’s game strategy. Their work matters to investors because it influences how effectively an organization’s assets are used to generate returns.

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Available on EDGAR 07/04/2026 - 12:13 PM Accepted by SEC EDGAR 07/01/2026 - 02:10 PM Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Berger Stefan

(Last) (First) (Middle)

1330 AVENUE OF THE AMERICAS, SUITE 23A

(Street)

NEW YORK CITY NEW YORK 10019

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
07/01/2026

3. Issuer Name and Ticker or Trading Symbol
Meridian3 Industrials Acquisition Corp [ MIAC ]

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Stefan Berger	07/01/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the Meridian3 (MIACU) Form 3 filing for Stefan Berger show?

The Form 3 filing shows that Stefan Berger is a director and Chief Investment Officer of Meridian3 Industrials Acquisition Corp. It establishes him as an insider reporting person but does not list any buy, sell, or derivative transactions in this filing.

Did Stefan Berger report any stock purchases or sales in Meridian3 (MIACU) on this Form 3?

No purchases or sales are reported on this Form 3. The transaction summary shows zero buy, sell, gift, exercise, tax-withholding, or restructuring transactions, indicating this is an initial ownership report without trading activity details.

What insider role does Stefan Berger hold at Meridian3 Industrials Acquisition Corp (MIACU)?

Stefan Berger is identified as both a director and an officer of Meridian3 Industrials Acquisition Corp, serving as Chief Investment Officer. This dual role makes him a key insider subject to ongoing ownership and transaction reporting rules.

Are there any derivative securities reported for Stefan Berger in the Meridian3 (MIACU) Form 3?

The Form 3 shows no derivative transactions or positions for Stefan Berger. The derivative transaction count is zero and the derivative summary section is empty, indicating no options, warrants, or similar instruments are reported in this filing.

Why is the Meridian3 (MIACU) Form 3 for Stefan Berger important to investors?

The Form 3 is important because it formally identifies Stefan Berger as an insider subject to future reporting. While it shows no transactions, it creates a baseline so subsequent Forms 4 or 5 will reveal any future trading or equity awards.