[SCHEDULE 13G/A] 2seventy bio, Inc. SEC Filing

Rhea-AI Filing Summary

The reporting persons — Beryl Capital Management LLC, Beryl Capital Management LP, Beryl Capital Partners II LP and David A. Witkin — submitted a Schedule 13G/A with respect to 2seventy bio, Inc.'s common stock. Each reporting person disclaims beneficial ownership except to the extent of any pecuniary interest and reports zero shares and 0% ownership. The cover information lists reporting-person classifications including IA, OO, PN, HC, and IN.

The filing contains certifications that the securities were acquired and are held in the ordinary course of business and were not acquired to influence control. The submission states no sole or shared voting or dispositive power for any reporting person and attaches Exhibit 99.1 (agreement regarding joint filing).

Positive

• Clear disclosure that each reporting person holds 0 shares (0%) of the issuer's common stock
• Certifications stating securities were acquired and are held in the ordinary course of business
• Attachment of Exhibit 99.1 documenting the agreement regarding joint filing, supporting transparency

Negative

• None.

Insights

Financial Analyst

TL;DR: Beryl and affiliates report no economic or voting interest in 2seventy bio; this filing is informational and has no effect on the cap table.

The Schedule 13G/A discloses 0 shares (0%) beneficially owned by each named reporting person and confirms no sole or shared voting/dispositive powers. From a market-impact perspective, the filing conveys no change to ownership concentration or potential activism risk. The certifications that holdings are in the ordinary course further indicate this is a routine disclosure rather than a strategic acquisition or control attempt.

Corporate Governance Expert

TL;DR: No reported ownership or control rights by the filers; governance and shareholder structure remain unchanged.

The document includes explicit disclaimers that the filers do not claim beneficial ownership beyond pecuniary interest and shows no voting or dispositive authority. The attached joint-filing agreement (Exhibit 99.1) documents coordination on the filing but does not reflect share accumulation. For governance analysis, there are no new shareholder nominees, control assertions, or changes to board voting dynamics arising from this filing.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

2seventy bio, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

901384107

(CUSIP Number)

06/30/2025

(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)

SCHEDULE 13G

CUSIP No. 901384107

1

Names of Reporting Persons

Beryl Capital Management LLC

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0 %

12

Type of Reporting Person (See Instructions)

IA, OO

SCHEDULE 13G

CUSIP No. 901384107

1

Names of Reporting Persons

Beryl Capital Management LP

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP No. 901384107

1

Names of Reporting Persons

Beryl Capital Partners II LP

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

CUSIP No. 901384107

1

Names of Reporting Persons

David A. Witkin

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: 2seventy bio, Inc.
(b)	Address of issuer's principal executive offices: 60 BINNEY STREET CAMBRIDGE MASSACHUSETTS 02210
Item 2.
(a)	Name of person filing: Beryl Capital Management LLC, a Delaware limited liability company ("Beryl") Beryl Capital Management LP, a Delaware limited partnership ("Beryl GP") Beryl Capital Partners II LP, a Delaware limited partnership (the "Partnership") David A. Witkin Each reporting person disclaims beneficial ownership of Common Stock except to the extent of that person's pecuniary interest therein. In addition, the filing of this Schedule 13G on behalf of the Partnership should not be construed as an admission that it is, and it disclaims that it is, a beneficial owner, as defined in Rule 13d-3 under the Act, of any Common Stock covered by this Schedule 13G.
(b)	Address or principal business office or, if none, residence: 225 Avenue I, Suite 205 Redondo Beach, CA 90277
(c)	Citizenship: See Item 4 of the cover sheet for each reporting person.
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 901384107
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: Beryl: 0 Beryl GP: 0 Partnership: 0 David A Witkin: 0
(b)	Percent of class: Beryl: 0% Beryl GP: 0% Partnership: 0% David A. Witkin: 0%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Beryl: 0 Beryl GP: 0 Partnership: 0 David A. Witkin: 0
	(ii) Shared power to vote or to direct the vote: Beryl: 0 Beryl GP: 0 Partnership: 0 David A Witkin: 0
	(iii) Sole power to dispose or to direct the disposition of: Beryl: 0 Beryl GP: 0 Partnership: 0 David A. Witkin: 0
	(iv) Shared power to dispose or to direct the disposition of: Beryl: 0 Beryl GP: 0 Partnership: 0 David A Witkin: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. Beryl is the investment adviser to the Partnership and other accounts. Beryl is the general partner of Beryl GP, which is the general partner of the Partnership and other private investment funds. Mr. Witkin is the control person of Beryl.
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 acquired and are held in the ordinary course of business and 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. 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.

Beryl Capital Management LLC

Signature:	/s/ Andrew Nelson
Name/Title:	Chief Operating Officer
Date:	07/31/2025

Beryl Capital Management LP

Signature:	/s/ Andrew Nelson
Name/Title:	Chief Operating Officer of Beryl Capital Management LLC, General Partner of Beryl Capital Management LP
Date:	07/31/2025

Beryl Capital Partners II LP

Signature:	/s/ Andrew Nelson
Name/Title:	COO of Beryl Capital Management LLC, General Partner of Beryl Capital Management LP, General Partner of Beryl Capital Partners II LP
Date:	07/31/2025

David A. Witkin

Signature:	/s/ David A. Witkin
Name/Title:	Reporting person
Date:	07/31/2025

Exhibit Information

Exhibit 99.1 - Agreement Regrding Joint Filing of Statement on Schedule 13D or 13G

FAQ

How many shares of 2seventy bio (TSVT) do the reporting persons own?

The filing reports 0 shares beneficially owned by each reporting person, representing 0% of the class.

Which entities and individuals filed the Schedule 13G/A for TSVT?

The filing was made by Beryl Capital Management LLC, Beryl Capital Management LP, Beryl Capital Partners II LP, and David A. Witkin.

Do the filers claim voting or dispositive power over TSVT shares?

No. The schedule reports no sole or shared voting power and no sole or shared dispositive power for any reporting person.

Does this Schedule 13G/A indicate an attempt to influence control of 2seventy bio?

No. The certifications state the securities were acquired and are held in the ordinary course of business and were not acquired to change or influence control.

Is there any agreement or exhibit attached to the filing?

Yes. The filing references Exhibit 99.1, an agreement regarding the joint filing of the statement.