Sell4

Skye Bioscience, Inc.

SKYE

Total Value

$64.7K

Net $64.7K sold

Filing Date

Sep 18, 2026

2 transactions

Sales

$64.7K

2 transactions

Trade Summary

On Sep 16, 2026, Schwab Andrew J., Insider, sold $64.7K of Skye Bioscience, Inc. (SKYE) across 2 transactions. The filing covers Common Stock and reflects net selling of $64.7K. Reported prices ranged from $1.91. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

SKYE daily price with the insider's sale marked at $1.91.

Sold near the 6-month low · the stock trades 8% lower today.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: Schwab Andrew J.
Role: Insider
Location: SAN FRANCISCO, CA

Filing Details

Filing Date: Sep 18, 2026
Transaction Date: Sep 16, 2026
Accession Number: 0001598549-26-000013
Form Type: 4
Net Trading Amount: -$64.7K

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Sep 16, 2026	Common Stock	32,607	$1.91	Sale	$62.3K
Sep 16, 2026	Common Stock	1,285	$1.91	Sale	$2.5K

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Footnotes

(F1)The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.70 to $2.11 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F2)The securities are directly held by 5AM Ventures II, L.P. ("Ventures II"). 5AM Partners II, LLC ("Partners II") is the sole general partner of Ventures II. The Reporting Person is a managing member of Partners II and may be deemed to have shared voting and investment power over the shares beneficially owned by Ventures II. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
(F3)The securities are directly held by 5AM Co-Investors II, L.P. ("Co-Investors II"). Partners II is the sole general partner of Co-Investors II. The Reporting Person is a managing member of Partners II and may be deemed to have shared voting and investment power over the shares beneficially owned by Co-Investors II. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.
(F4)The securities are directly held by 5AM Ventures VII, L.P. ("Ventures VII"). 5AM Partners VII, LLC ("Partners VII") is the sole general partner of Ventures VII. The Reporting Person is a managing member of Partners VII and may be deemed to have shared voting and investment power over the shares beneficially owned by Ventures VII. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Schwab Andrew J.

(Last)

(First)

(Middle)

C/O 5AM VENTURE MANAGEMENT, LLC

4 EMBARCADERO CENTER, SUITE 3110

(Street)

SAN FRANCISCO

94111

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Skye Bioscience, Inc. [ SKYE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	09/16/2026		S		32,607	D	$1.91⁽¹⁾	142,463	I	By 5AM Ventures II, L.P.⁽²⁾
Common Stock	09/16/2026		S		1,285	D	$1.91⁽¹⁾	5,616	I	By 5AM Co-Investors II, L.P.⁽³⁾
Common Stock								981,269	I	By 5AM Ventures VII, L.P.⁽⁴⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.70 to $2.11 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

2. The securities are directly held by 5AM Ventures II, L.P. ("Ventures II"). 5AM Partners II, LLC ("Partners II") is the sole general partner of Ventures II. The Reporting Person is a managing member of Partners II and may be deemed to have shared voting and investment power over the shares beneficially owned by Ventures II. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

3. The securities are directly held by 5AM Co-Investors II, L.P. ("Co-Investors II"). Partners II is the sole general partner of Co-Investors II. The Reporting Person is a managing member of Partners II and may be deemed to have shared voting and investment power over the shares beneficially owned by Co-Investors II. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

4. The securities are directly held by 5AM Ventures VII, L.P. ("Ventures VII"). 5AM Partners VII, LLC ("Partners VII") is the sole general partner of Ventures VII. The Reporting Person is a managing member of Partners VII and may be deemed to have shared voting and investment power over the shares beneficially owned by Ventures VII. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.

Remarks:

On August 24, 2026, the Issuer effected a 1-for-8 reverse stock split of its Common Stock, which is reflected in the Reporting Person's number of securities beneficially owned reported in this filing.

	/s/ Andrew J. Schwab	09/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0001598549-26-000013.

Skye Bioscience, Inc.

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

Price at the Time of the Trade

SEC Form 4