Bolt Biotherapeutics: Renaissance reports 4.82% stake

Available on EDGAR 11/12/2026 - 03:35 PM EST Accepted by SEC EDGAR 11/12/2026 - 03:35 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Bolt Biotherapeutics, Inc. (BOLT) is the issuer of common stock covered by an amended Schedule 13G from Renaissance Technologies LLC and Renaissance Technologies Holdings Corporation. Each reports beneficial ownership of 92,925 shares, or 4.82% of the class, as of September 30, 2026, with sole voting and dispositive power over 92,925 shares and no shared voting or dispositive power.

Key Figures

Beneficial ownership per reporting person: 92,925 shares Class ownership per reporting person: 4.82% Sole voting power: 92,925 shares +2 more

5 metrics

Beneficial ownership per reporting person 92,925 shares As of September 30, 2026

Class ownership per reporting person 4.82% As of September 30, 2026

Sole voting power 92,925 shares Reported by each reporting person

Sole dispositive power 92,925 shares Reported by each reporting person

Shared voting and dispositive power 0 shares Reported by each reporting person

Key Terms

beneficially owned, Sole Voting Power, Sole Dispositive Power, Shared Voting Power

4 terms

beneficially owned financial

"92,925 shares beneficially owned by each reporting person"

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.

Sole Voting Power regulatory

"Sole Voting Power 92,925.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Sole Dispositive Power regulatory

"Sole Dispositive Power 92,925.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Shared Voting Power regulatory

"Shared Voting Power 0.00"

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.

FAQ

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

How many BOLT shares did Renaissance Technologies report owning?

Renaissance Technologies LLC and Renaissance Technologies Holdings Corporation each reported beneficial ownership of 92,925 shares, equal to 4.82% of the class, as of September 30, 2026.

Who receives dividends from the reported BOLT shares?

Certain funds managed by Renaissance Technologies LLC have the right to receive dividends and proceeds from sales of the securities.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Bolt Biotherapeutics, Inc.

(Name of Issuer)

Common Stock, $0.00001 par value

(Title of Class of Securities)

097702203

(CUSIP Number)

09/30/2026

(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): 097702203

1

Names of Reporting Persons

Renaissance Technologies 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 92,925.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 92,925.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

92,925.00

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)

4.82 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 097702203

1

Names of Reporting Persons

Renaissance Technologies Holdings Corporation

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 92,925.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 92,925.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

92,925.00

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)

4.82 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Bolt Biotherapeutics, Inc.
(b)	Address of issuer's principal executive offices: 900 CHESAPEAKE DRIVE, REDWOOD CITY, CA 94063
Item 2.
(a)	Name of person filing: This Schedule 13G is being filed by Renaissance Technologies LLC ("RTC") and Renaissance Technologies Holdings Corporation ("RTHC").
(b)	Address or principal business office or, if none, residence: 520 Madison Avenue, New York, New York 10022
(c)	Citizenship: RTC is a Delaware limited liability company, and RTHC is a Delaware corporation.
(d)	Title of class of securities: Common Stock, $0.00001 par value
(e)	CUSIP No.: 097702203
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: 92925
(b)	Percent of class: 4.82 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 92925
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 92925
	(iv) Shared power to dispose or to direct the disposition of: 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.
	If any other 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, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Certain funds managed by RTC have the right to receive dividends and proceeds from the sale of the securities which are the subject of this report.
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 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.

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.

Renaissance Technologies LLC

Signature:	Brian Felczak
Name/Title:	Chief Financial Officer
Date:	11/12/2026

Renaissance Technologies Holdings Corporation

Signature:	Brian Felczak
Name/Title:	Vice President
Date:	11/12/2026

Exhibit Information

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned agrees to the filing on behalf of each of a Statement on Schedule 13G, and all amendments thereto, with respect to the shares of Common Stock, $0.00001 par value of Bolt Biotherapeutics, Inc.