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*
DeWalch D Mark

(Last) (First) (Middle)
1001 FANNIN STREET, SUITE 2020

(Street)
HOUSTON TX 77002

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Black Stone Minerals, L.P. [ BSM ]
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)
04/28/2017
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)
Code V Amount (A) or (D) Price
Common units representing limited partner interests 04/28/2017 C(1) 152 A (1) 2,770 I By wife
Common units representing limited partner interests 04/28/2017 C(1) 61 A (1) 4,733 I By son
Common units representing limited partner interests 04/28/2017 C(1) 61 A (1) 4,718 I By daughter
Common units representing limited partner interests 04/28/2017 C(1) 243 A (1) 15,078 I By Donald Mark DeWalch Trust
Common units representing limited partner interests 83,029 D
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Subordinated units representing limited partner interests (2) 04/28/2017 C(1) 199 (2) (2) Common units representing limited partner interests 199 (1) 3,628 I By wife
Subordinated units representing limited partner interests (2) 04/28/2017 C(1) 79 (2) (2) Common units representing limited partner interests 79 (1) 4,214 I By son
Subordinated units representing limited partner interests (2) 04/28/2017 C(1) 79 (2) (2) Common units representing limited partner interests 79 (1) 4,214 I By daughter
Subordinated units representing limited partner interests (2) 04/28/2017 C(1) 318 (2) (2) Common units representing limited partner interests 318 (1) 19,750 I By Donald Mark DeWalch Trust
Preferred units representing limited partner interests (1) 04/28/2017 C(1) 5 (3) (3) Common and subordinated units representing LP interests (1) (1) 5 I By wife
Preferred units representing limited partner interests (1) 04/28/2017 C(1) 2 (3) (3) Common and subordinated units representing LP interests (1) (1) 3 I By son
Preferred units representing limited partner interests (1) 04/28/2017 C(1) 2 (3) (3) Common and subordinated units representing LP interests (1) (1) 3 I By daughter
Preferred units representing limited partner interests (1) 04/28/2017 C(1) 8 (3) (3) Common and subordinated units representing LP interests (1) (1) 9 I By Donald Mark DeWalch Trust
Subordinated units representing limited partner interests (2) (2) (2) Common units representing limited partner interests 70,865 70,865 D
Explanation of Responses:
1. A portion of the preferred units automatically converted into common units and subordinated units under the terms of the Partnership's Limited Partnership Agreement. Each preferred unit converted into 30.3431 common units and 39.7427 subordinated units.
2. Each subordinated unit will convert into one common unit representing a limited partner interest in the Issuer at the end of the subordination period described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875).
3. Each preferred unit may be converted at any time at the option of the holder thereof into common units at the then-effective conversion rate. In addition, each year from 2016 to 2018 a number of preferred units will automatically convert into common units and subordinated units at the then-effective conversion rate unless redeemed, as described in the Issuer's Registration Statement on Form S-1 (File No. 333-202875).
Remarks:
/s/ Steve Putman, Attorney-in-Fact for D. Mark DeWalch 05/01/2017
** 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).
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