Alta Partners Reports 48,819 Warrant-Convertible Shares in Bolt Projects (BSLK)

Rhea-AI Filing Summary

Bolt Projects Holdings, Inc. received an updated Schedule 13G/A showing that Alta Partners LLC beneficially owns 48,819 ordinary shares, representing 2.3% of the outstanding common stock. The filing clarifies these shares are issuable upon exercise of warrants and that Alta Partners has sole voting and dispositive power over all 48,819 shares. The report is dated an event on 09/30/2025 and was signed by Steven Cohen as Managing Member on 10/10/2025. The filer certifies the holdings were acquired in the ordinary course of business and not for the purpose of changing control.

Positive

• Full disclosure of beneficial ownership and voting/dispositive powers for 48,819 shares
• Clear certification that holdings were acquired in the ordinary course and not to change control

Negative

• None.

Insights

Institutional Ownership Analyst

Small, disclosed stake by an institutional investor; transparency reduces uncertainty.

The filing shows an institutional investor, Alta Partners LLC, holds 48,819 shares equal to 2.3% of the class, with sole voting and dispositive power. The shares are noted as issuable upon exercise of warrants, which affects the effective ownership calculation until exercised.

The main dependencies are warrant exercise timing and total share count; both determine whether this remains a 2.3% stake. Monitor outstanding warrant schedules and equity filings over the next 12 months for any change in ownership percentage.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Bolt Projects Holdings, Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

09769B206

(CUSIP Number)

09/30/2025

(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. 09769B206

1

Names of Reporting Persons

Alta Partners 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

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 48,819.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 48,819.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

48,819.00

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)

2.3 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Bolt Projects Holdings, Inc.
(b)	Address of issuer's principal executive offices: 2261 MARKET STREET, SUITE 5447, SAN FRANCISCO, CALIFORNIA, 94114.
Item 2.
(a)	Name of person filing: Alta Partners LLC
(b)	Address or principal business office or, if none, residence: 1205 Partners LLC Garden City, New York, 11530
(c)	Citizenship: New York Limited Liability Company
(d)	Title of class of securities: Common Stock, par value $0.0001 per share
(e)	CUSIP No.: 09769B206
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: 48,819 Ordinary Shares, representing shares issuable upon exercise of warrants.
(b)	Percent of class: 2.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 48,819 Ordinary Shares.
	(ii) Shared power to vote or to direct the vote: 0 Ordinary Shares.
	(iii) Sole power to dispose or to direct the disposition of: 48,819 Ordinary Shares.
	(iv) Shared power to dispose or to direct the disposition of: 0 Ordinary Shares.
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.
	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. 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.

Alta Partners LLC

Signature:	/s/ Steven Cohen
Name/Title:	Steven Cohen, Managing Member
Date:	10/10/2025

FAQ

What stake does Alta Partners LLC report in Bolt Projects Holdings (BSLK)?

Alta Partners LLC reports beneficial ownership of 48,819 shares, equal to 2.3% of the class.

Are the reported Bolt Projects shares actual shares or warrants (BSLK)?

The filing states the 48,819 Ordinary Shares are shares issuable upon exercise of warrants.

Does Alta Partners have voting control over the reported BSLK shares?

Yes. The filing shows sole voting power and sole dispositive power for all 48,819 shares.

When was the Schedule 13G/A event date for the BSLK filing?

The date of the event requiring the filing is 09/30/2025, and the signature date is 10/10/2025.

Was the stake reported as intended to change control of Bolt Projects (BSLK)?

No. The certifying statement indicates the securities were not acquired or held to change or influence control of the issuer.