UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

DECIPHERA PHARMACEUTICALS, INC.

(Name of Issuer)

Common Stock, $0.01 par value

(Title of Class of Securities)

24344T101

(CUSIP Number)

December 31, 2023

(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)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Continued on following pages

Page 1 of 8 Pages

CUSIP No. 24344T101

Page 2 of 8 Pages

1	NAMES OF REPORTING PERSONS
	BRAIDWELL LP

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(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-

		6	SHARED VOTING POWER
			2,385,623¹

		7	SOLE DISPOSITIVE POWER
			-0-

		8	SHARED DISPOSITIVE POWER
			2,385,623¹

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	2,385,623¹

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	2.92%²

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IA, PN

¹	Consists of 1,169,490 Shares (as defined herein) and 1,216,133 Shares issuable upon the exercise of immediately exercisable pre-funded warrants (“Warrants”), all of which are directly owned by Braidwell Partners Master Fund LP.

Based on 80,503,338 Shares outstanding as of December 31, 2023, as reported in the Issuer’s annual report on Form 10-K for the fiscal year ended December 31, 2023 filed with the Securities and Exchange Commission (the “SEC”) on February 7, 2024, plus the 1,216,133 Shares the Reporting Persons have the right to acquire upon exercise of Warrants, which amount has been added to the Shares outstanding in accordance with Rule 13d-3(d)(1)(i) under the Act.

CUSIP No. 24344T101

Page 3 of 8 Pages

1	NAMES OF REPORTING PERSONS
	BRAIDWELL MANAGEMENT LLC

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(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-

		6	SHARED VOTING POWER
			2,385,623¹

		7	SOLE DISPOSITIVE POWER
			-0-

		8	SHARED DISPOSITIVE POWER
			2,385,623¹

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	2,385,623¹

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	2.92%²

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	HC, OO

CUSIP No. 24344T101

Page 4 of 8 Pages

1	NAMES OF REPORTING PERSONS
	ALEXANDER T. KARNAL

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			-0-

		6	SHARED VOTING POWER
			2,385,623¹

		7	SOLE DISPOSITIVE POWER
			-0-

		8	SHARED DISPOSITIVE POWER
			2,385,623¹

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	2,385,623¹

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	2.92%²

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN, HC

CUSIP No. 24344T101

Page 5 of 8 Pages

1	NAMES OF REPORTING PERSONS
	BRIAN J. KREITER

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)☐
	(b)☐
3	SEC USE ONLY


4	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER
			-0-

		6	SHARED VOTING POWER
			2,385,623¹

		7	SOLE DISPOSITIVE POWER
			-0-

		8	SHARED DISPOSITIVE POWER
			2,385,623¹

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	2,385,623¹

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	☐

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	2.92%²

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	HC, OO

CUSIP No. 24344T101

Page 6 of 8 Pages

Item 1(a).

Name of Issuer:

Deciphera Pharmaceuticals, Inc.

Item 1(b).

Address of Issuer’s Principal Executive Offices:

200 Smith Street

Waltham, MA, 02451

Item 2(a).

Name of Person Filing

This filing is being jointly filed by Braidwell LP, Braidwell Management LLC, Alexander Karnal and Brian Kreiter (the “Reporting Persons”).

Item 2(b).

Address of Principal Business Office or, if None, Residence:

The business address of each Reporting Person is:

2200 Atlantic St

4^th Floor

Stamford, CT 06902

Item 2(c).

Citizenship:

Braidwell LP is a limited partnership organized under the laws of the State of Delaware.

Braidwell Management LLC is a limited liability company organized under the laws of the State of Delaware. Alexander Karnal and Brian Kreiter are both citizens of the United States of America.

Item 2(d).

Title of Class of Securities:

Common Stock, $0.01 par value (the “Shares”)

Item 2(e).

CUSIP Number:

24344T101

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:

(e) An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E)

(g) A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G)

Item 4.

Ownership:

Item 4(a).

Amount Beneficially Owned:

Items 5-9 of each cover page are incorporated by reference. As of December 31, 2023, each Reporting Person may be deemed to be the beneficial owner 2,385,623 Shares, which amount consists of 1,169,490 Shares and 1,216,133 Shares issuable upon the exercise of Warrants, all of which are directly owned by Braidwell Partners Master Fund LP.

CUSIP No. 24344T101

Page 7 of 8 Pages

Item 4(b).

Percent of Class:

As of December 31, 2023, each Reporting Person may be deemed to beneficially own approximately 2.92% of the Shares, which is calculated based on 80,503,338 Shares outstanding as of December 31, 2023, as reported in the Issuer’s annual report on Form 10-K for the fiscal year ended December 31, 2023 filed with the SEC on February 7, 2024, plus the 1,216,133 Shares the Reporting Persons have the right to acquire upon exercise of Warrants, which amount has been added to the Shares outstanding in accordance with Rule 13d-3(d)(1)(i) under the Act.

Item 4(c).

Number of Shares as to which such person has:

(i)	Sole power to vote or direct the vote:	-0-
(ii)	Shared power to vote or direct the vote:	2,385,623
(iii)	Sole power to dispose or direct the disposition of:	-0-
(iv)	Shared power to dispose or direct the disposition of:	2,385,623

Item 5.

Ownership of Five Percent or Less of a Class:

If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owners of more than five percent of the class of securities, check the following ☒.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person:

n/a

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person:

The information in Item 4 is incorporated herein.

Item 8.

Identification and Classification of Members of the Group:

n/a

Item 9.

Notice of Dissolution of Group:

n/a

Item 10.

Certification:

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.

CUSIP No. 24344T101

Page 8 of 8 Pages

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.

February 14, 2024
	BRAIDWELL MANAGEMENT LLC AS GENERAL PARTNER OF BRAIDWELL LP

	BY:	/S/ MANISH K. MITAL
		NAME: MANISH K. MITAL
		TITLE: AUTHORIZED SIGNATORY

	BRAIDWELL MANAGEMENT LLC

	BY:	/S/ MANISH K. MITAL
		NAME: MANISH K. MITAL
		TITLE: AUTHORIZED SIGNATORY

	ALEXANDER T. KARNAL

	/S/ ALEXANDER T. KARNAL

	BRIAN J. KREITER

	/S/ BRIAN J. KREITER

Deciphera Pharmaceuticals, Inc. SC 13G/A