SEC FORM 4

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

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

1. Name and Address of Reporting Person^*

Thompson Peter A.

(Last)

(First)

(Middle)

C/O ALPINE IMMUNE SCIENCES, INC.

188 EAST BLAINE STREET, SUITE 200

(Street)

SEATTLE

98102

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
ALPINE IMMUNE SCIENCES, INC. [ ALPN ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2024

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	05/18/2024		U		2,416,181	D	⁽¹⁾⁽²⁾	0	I	See Footnotes⁽³⁾⁽⁴⁾
Common Stock	05/18/2024		U		264,315	D	⁽¹⁾⁽²⁾	0	I	See Footnotes⁽⁴⁾⁽⁵⁾

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)
Stock Option (Right to buy)	$11.31⁽⁶⁾	05/20/2024		D			7,650	⁽⁷⁾	01/01/2028	Common Stock	7,650	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾
Stock Option (Right to buy)	$4.09⁽⁶⁾	05/20/2024		D			7,650	⁽⁷⁾	01/01/2029	Common Stock	7,650	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾
Stock Option (Right to buy)	$3.6233⁽⁶⁾	05/20/2024		D			7,650	⁽⁷⁾	01/01/2030	Common Stock	7,650	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾
Stock Option (Right to buy)	$13.45⁽⁶⁾	05/20/2024		D			7,650	⁽⁷⁾	01/03/2031	Common Stock	7,650	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾
Stock Option (Right to buy)	$13.89⁽⁶⁾	05/20/2024		D			10,000	⁽⁷⁾	01/02/2032	Common Stock	10,000	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾
Stock Option (Right to buy)	$7.43⁽⁶⁾	05/20/2024		D			10,000	⁽⁷⁾	01/02/2033	Common Stock	10,000	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾
Stock Option (Right to buy)	$19⁽⁶⁾	05/20/2024		D			17,500	⁽¹⁰⁾	01/01/2034	Common Stock	17,500	⁽⁸⁾⁽⁹⁾	0	D⁽⁴⁾

Explanation of Responses:

1. This Form 4 reports securities disposed of pursuant to the Agreement and Plan of Merger (the Merger Agreement), dated April 10, 2024, among Alpine Immune Sciences, Inc., a Delaware corporation (the Company), Vertex Pharmaceuticals Incorporated, a Massachusetts corporation (Parent), and Adams Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (Merger Sub). Pursuant to the Merger Agreement, Merger Sub completed a tender offer for shares of the Company Common Stock, par value $0.001 per share (Company Common Stock), effective May 18, 2024 (the Offer Closing), and thereafter merged with and into the Company (the Merger, and together with the Offer Closing, the Transactions), effective May 20, 2024 (the Effective Time), with the Company surviving the Merger as a wholly owned subsidiary of Parent.

2. (Continued from Footnote 1) In connection with the consummation of the Transactions, each share of the Company Common Stock was either (x) purchased at the Offer Closing for $65.00 in cash per share (the Offer Price), without interest thereon and subject to any applicable tax withholding or (y) automatically converted in the Merger at the Effective Time into the right to receive the Offer Price in cash, without interest thereon (the Merger Consideration), subject to any applicable tax withholding.

3. These securities are held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VI. By virtue of such relationships, GP VI and OrbiMed Advisors may be deemed to have voting power and investment power over the securities held by OPI VI and as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and W. Carter Neild, each of whom disclaims beneficial ownership of the shares held by OPI VI.

4. Each of the Reporting Person, GP VI, Genesis GP and Advisors disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) of the Exchange Act, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any such entity or person, including the Reporting Person, is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

5. These securities are held of record by OrbiMed Genesis Master Fund, L.P. ("Genesis"). OrbiMed Genesis GP LLC ("Genesis GP") is the general partner of Genesis, and OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting power and investment power over the securities held by Genesis and as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and W. Carter Neild, each of whom disclaims beneficial ownership of the shares held by Genesis.

6. The exercise price is equal to the closing price per share of Common Stock as reported on the Nasdaq Global Market on the date of grant.

7. The option to purchase shares of Company Common Stock (the Company Option) is fully vested and exercisable.

8. Pursuant to the Merger Agreement, as of immediately prior to the Effective Time, each option to purchase shares of Company Common Stock (a Company Option) that was then outstanding but not then vested or exercisable became immediately vested and exercisable in full. At the Effective Time, each Company Option that was then outstanding was automatically cancelled and, if such Company Option had a per share exercise price less than the Merger Consideration, the holder thereof became entitled to receive a cash payment, without interest thereon and subject to any applicable tax withholding, equal to the product obtained by multiplying (i) the total number of shares of Company Common Stock underlying such Company Option by (ii) the excess of the Merger Consideration over the exercise price per share such Company Option.

9. (Continued from Footnote 8) Any Company Option that had an exercise price per share that was equal to or exceeded the Merger Consideration was cancelled without any cash payment or other consideration being made in respect thereof.

10. 1/12 of the shares subject to the option become vested and exercisable on February 2, 2024 and 1/12 of the shares subject to the option shall vest monthly thereafter.

Remarks:

	/s/ James Paul Rickey, attorney-in-fact	05/20/2024
	** 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).
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