Adicet Bio: Zedek filers each report 5.4% stake

The two reported 5.4% beneficial ownership interests carry different shared voting and dispositive power counts.

Rhea-AI Filing Summary

Adicet Bio, Inc. (ACET) is the issuer whose shares joint filers Daniel Clayton Zedek and Lauren Marie Zedek each reported beneficially owning. Each reported 502,309 shares, or 5.4% of the class. Daniel Clayton Zedek reported shared voting and dispositive power over 495,309 shares; Lauren Marie Zedek reported shared voting and dispositive power over 414,515 shares. Both reported zero sole voting and dispositive power.

Key Figures

Beneficial ownership — Daniel Clayton Zedek: 502,309 shares Beneficial ownership — Lauren Marie Zedek: 502,309 shares Percent of class — Daniel Clayton Zedek: 5.4% +3 more

6 metrics

Beneficial ownership — Daniel Clayton Zedek 502,309 shares 5.4% of the class

Beneficial ownership — Lauren Marie Zedek 502,309 shares 5.4% of the class

Percent of class — Daniel Clayton Zedek 5.4% Beneficial ownership reported

Percent of class — Lauren Marie Zedek 5.4% Beneficial ownership reported

Shared voting and dispositive power — Daniel Clayton Zedek 495,309 shares Shared power reported

Shared voting and dispositive power — Lauren Marie Zedek 414,515 shares Shared power reported

Key Terms

beneficially owned, Shared Voting Power, Shared Dispositive Power, Percent of class

4 terms

beneficially owned regulatory

"Amount beneficially owned: 502309"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Shared Voting Power regulatory

"Shared Voting Power 495,309.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

Shared Dispositive Power regulatory

"Shared Dispositive Power 495,309.00"

Percent of class regulatory

"Percent of class: 5.4 %"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

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

How many ACET shares did Daniel Clayton Zedek and Lauren Marie Zedek report owning?

Each reported beneficial ownership of 502,309 Adicet Bio shares, representing 5.4% of the class for each person.

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

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Available on EDGAR 10/23/2026 - 05:49 PM EDT Accepted by SEC EDGAR 10/23/2026 - 05:48 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Adicet Bio, Inc.

(Name of Issuer)

Common Stock, $0.0001 par vaue

(Title of Class of Securities)

007002207

(CUSIP Number)

10/19/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 007002207

1

Names of Reporting Persons

Zedek Daniel Clayton

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 495,309.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 495,309.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

502,309.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.4 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

CUSIP Number(s): 007002207

1

Names of Reporting Persons

Zedek Lauren Marie

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 414,515.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 414,515.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

502,309.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.4 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Adicet Bio, Inc.
(b)	Address of issuer's principal executive offices: 131 DARTMOUTH STREET, 3RD FLOOR, BOSTON, MASSACHUSETTS, 02116
Item 2.
(a)	Name of person filing: Daniel Clayton Zedek
(b)	Address or principal business office or, if none, residence: 8 Aldershot Ct Chapel Hill, NC 27517
(c)	Citizenship: United States
(d)	Title of class of securities: Common Stock, $0.0001 par vaue
(e)	CUSIP Number(s): 007002207
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 502309
(b)	Percent of class: 5.4 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 495309
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 495309
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Zedek Daniel Clayton

Signature:	Daniel Clayton Zedek
Name/Title:	Individual/Joint filer
Date:	10/23/2026

Zedek Lauren Marie

Signature:	Lauren Marie Zedek
Name/Title:	Individual/Joint Filer
Date:	10/23/2026