Squadron funds disclose 6.5% Spruce Biosciences (SPRB) ownership in 13G/A

Rhea-AI Filing Summary

Spruce Biosciences investor Squadron Master Fund LP and related parties report beneficial ownership of 70,000 shares of common stock, or 6.5% of the company. This percentage is based on 1,070,370 shares outstanding as of November 7, 2025, as disclosed by Spruce Biosciences.

The stake is held through private funds advised by Squadron Capital Management LLC, an exempt reporting adviser. Squadron, along with partners Matthew Sesterhenn and William Blank, share voting and dispositive power over the 70,000 shares but have no sole authority. They may be deemed beneficial owners yet expressly disclaim beneficial ownership and state the position is held in the ordinary course, without intent to change or influence control.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

SPRUCE BIOSCIENCES, INC.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

85209E208

(CUSIP Number)

12/31/2025

(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. 85209E208

1

Names of Reporting Persons

Squadron Master Fund 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 70,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 70,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

70,000.00

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)

6.5 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

CUSIP No. 85209E208

1

Names of Reporting Persons

Squadron 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 70,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 70,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

70,000.00

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)

6.5 %

12

Type of Reporting Person (See Instructions)

IA, HC

SCHEDULE 13G

CUSIP No. 85209E208

1

Names of Reporting Persons

Matthew Sesterhenn

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 70,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 70,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

70,000.00

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)

6.5 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

CUSIP No. 85209E208

1

Names of Reporting Persons

William Blank

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 70,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 70,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

70,000.00

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)

6.5 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: SPRUCE BIOSCIENCES, INC.
(b)	Address of issuer's principal executive offices: 611 GATEWAY BOULEVARD, SUITE 740, SOUTH SAN FRANCISCO, CALIFORNIA, 94080.
Item 2.
(a)	Name of person filing: Squadron Master Fund LP Squadron Capital Management, LLC Matthew Sesterhenn William Blank
(b)	Address or principal business office or, if none, residence: Squadron Master Fund LP c/o Squadron Capital Management, LLC 999 Oakmont Plaza Drive, Suite 600 Westmont, IL 60559 Squadron Capital Management, LLC 999 Oakmont Plaza Drive, Suite 600 Westmont, IL 60559 Matthew Sesterhenn c/o Squadron Capital Management, LLC 999 Oakmont Plaza Drive, Suite 600 Westmont, IL 60559 William Blank c/o Squadron Capital Management, LLC 999 Oakmont Plaza Drive, Suite 600 Westmont, IL 60559
(c)	Citizenship: Squadron Master Fund LP - Delaware Squadron Capital Management, LLC - Delaware Matthew Sesterhenn - United States William Blank - United States
(d)	Title of class of securities: Common Stock, par value $0.0001 per share
(e)	CUSIP No.: 85209E208
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: Squadron Capital Management, LLC is an investment adviser that is registered as an Exempt Reporting Adviser with the Securities and Exchange Commission. Squadron Capital Management, LLC, which serves as investment adviser to private funds, including but not limited to Squadron Master Fund LP (collectively, the "Funds"), may be deemed to be the beneficial owner of all shares of Common Stock held by the Funds. Mr. Sesterhenn and Mr. Blank, as Partners of Squadron Capital Management, LLC, with the power to exercise investment and voting discretion, may be deemed to be the beneficial owner of all shares of Common Stock held by the Funds. Pursuant to Rule 13d-4 under the Securities Exchange Act of 1934, as amended, Squadron Capital Management, LLC and Mr. Sesterhenn and Mr. Blank expressly disclaim beneficial ownership over any of the securities reported in this statement, and the filing of this statement shall not be construed as an admission that Squadron Capital Management, LLC or Mr. Sesterhenn and Mr. Blank are the beneficial owner of any of the securities reported herein. Squadron Master Fund LP - 70,000 shares Squadron Capital Management, LLC - 70,000 shares Matthew Sesterhenn - 70,000 shares William Blank - 70,000 shares
(b)	Percent of class: Ownership percentage is based on 1,070,370 shares of common stock outstanding, par value $0.0001 per share, as of November 7, 2025, as reported by the Issuer on Form 10-Q filed with the Securities and Exchange Commission on November 10, 2025. Squadron Master Fund LP - 6.5% Squadron Capital Management, LLC - 6.5% Matthew Sesterhenn - 6.5% William Blank - 6.5%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Squadron Master Fund LP - 0 Squadron Capital Management, LLC - 0 Matthew Sesterhenn - 0 William Blank - 0
	(ii) Shared power to vote or to direct the vote: Squadron Master Fund LP - 70,000 shares Squadron Capital Management, LLC - 70,000 shares Matthew Sesterhenn - 70,000 shares William Blank - 70,000 shares
	(iii) Sole power to dispose or to direct the disposition of: Squadron Master Fund LP - 0 Squadron Capital Management, LLC - 0 Matthew Sesterhenn - 0 William Blank - 0
	(iv) Shared power to dispose or to direct the disposition of: Squadron Master Fund LP - 70,000 shares Squadron Capital Management, LLC - 70,000 shares Matthew Sesterhenn - 70,000 shares William Blank - 70,000 shares
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.
	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. The Funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of Common Stock covered by this Statement.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Notes above.
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.

Squadron Master Fund LP

Signature:	/s/ Matthew Sesterhenn
Name/Title:	Partner, Squadron Partners LLC, its General Partner
Date:	02/17/2026

Squadron Capital Management LLC

Signature:	/s/ Matthew Sesterhenn
Name/Title:	Partner
Date:	02/17/2026

Matthew Sesterhenn

Signature:	/s/ Matthew Sesterhenn
Name/Title:	Matthew Sesterhenn
Date:	02/17/2026

William Blank

Signature:	/s/ William Blank
Name/Title:	William Blank
Date:	02/17/2026

FAQ

What ownership stake in SPRB does Squadron Master Fund report?

Squadron Master Fund LP and related parties report beneficial ownership of 70,000 Spruce Biosciences shares, representing 6.5% of the common stock. This percentage is calculated using 1,070,370 shares outstanding as of November 7, 2025, as reported by the company.

Who are the reporting persons in the Spruce Biosciences (SPRB) Schedule 13G/A?

The filing lists Squadron Master Fund LP, Squadron Capital Management LLC, and individuals Matthew Sesterhenn and William Blank as reporting persons. Squadron Capital Management advises the funds holding the shares, and Sesterhenn and Blank are partners with investment and voting discretion.

How much voting and dispositive power do the Squadron entities have over SPRB shares?

The reporting persons disclose no sole voting or dispositive power, but shared voting and shared dispositive power over 70,000 shares of Spruce Biosciences common stock. All four reporting persons report identical shared voting and dispositive power figures in the ownership breakdown.

On what share count is Squadron’s 6.5% SPRB ownership based?

The 6.5% ownership figure is based on 1,070,370 shares of Spruce Biosciences common stock outstanding as of November 7, 2025. That outstanding share count was reported by Spruce Biosciences in its Form 10-Q filed with the Securities and Exchange Commission.

Do Squadron and its principals claim full beneficial ownership of SPRB shares?

Squadron Capital Management, Matthew Sesterhenn, and William Blank state they may be deemed beneficial owners of all shares held by the funds but expressly disclaim beneficial ownership of the securities, citing Rule 13d-4. The filing clarifies this is not an admission of beneficial ownership.

Is Squadron’s SPRB position intended to influence control of Spruce Biosciences?

The certification states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Spruce Biosciences. It also notes they are not held in connection with any control-related transaction.