STOCK TITAN

Director trades 5,005 units at Westlake Chemical Partners (WLKP)

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Westlake Chemical Partners LP director Lisa A. Friel exercised 5,005 Phantom Units, each economically equivalent to one Common Unit, into 5,005 Common Units on August 6, 2026. She then disposed of 2,502 Common Units to the issuer at $21.35 per unit, leaving 0 Phantom Units from this award.

Positive

  • None.

Negative

  • None.
Insider Friel Lisa A.
Role Director
Type Security Shares Price Value
Exercise Phantom Units F1 5,005 $0.00 $0.00
Exercise Common Units F1 5,005 -- --
Disposition Common Units 2,502 $21.35 $53K
Holdings After Transaction: Phantom Units — 0 shares (Direct); Common Units — 9,666 shares (Direct)
Footnotes (1)
  1. F1. Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer.
Phantom Units Exercised 5,005 Phantom Units Derivative exercise into Common Units on August 6, 2026
Common Units Acquired via Exercise 5,005 Common Units Received upon exercise of Phantom Units on August 6, 2026
Common Units Disposed to Issuer 2,502 Common Units Disposition to issuer on August 6, 2026
Disposition Price $21.35 per unit Price for 2,502 Common Units disposed to issuer
Phantom Units Remaining 0 Phantom Units Total Phantom Units following the derivative exercise
Phantom Units financial
"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."
Phantom units are a form of employee compensation that mimics ownership in a company without issuing real shares: recipients receive cash or stock value tied to the company’s share price or performance when the units vest. They matter to investors because phantom units align employee incentives with shareholder value while avoiding share dilution; however, they create future cash obligations and can affect a company’s financial statements and cash flow.
Common Units financial
"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."
Common units are the basic ownership stakes in a company, limited partnership, or trust that function like common stock: they give holders a claim on profits and often voting rights. Think of them as the ordinary seats at a table—the most directly affected by the business’s success or failure, so they typically offer higher upside but carry greater risk than preferred claims or creditors, which matters to investors evaluating potential return and safety.
derivative security financial
"Transaction code M reflects an exercise or conversion of a derivative security."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
Disposition to issuer financial
"Transaction code D is described as a Disposition to issuer."

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates

FAQ

What insider transaction did WLKP director Lisa A. Friel report?

Lisa A. Friel reported exercising 5,005 Phantom Units into 5,005 Common Units of Westlake Chemical Partners LP (WLKP). On the same date, she disposed of 2,502 Common Units back to the issuer at $21.35 per unit in a disposition-to-issuer transaction.

How many WLKP Phantom Units did Lisa A. Friel exercise and what did she receive?

She exercised 5,005 Phantom Units, each economically equivalent to one Common Unit of WLKP. This exercise converted into 5,005 Common Units, reflecting a derivative-security conversion rather than an open-market purchase, with the Phantom Units balance for this award going to zero afterward.

How many WLKP Common Units did Lisa A. Friel dispose of and at what price?

Friel disposed of 2,502 Common Units of WLKP in a transaction coded as a disposition to the issuer. The reported transaction price was $21.35 per unit, and this event occurred on August 6, 2026 as part of the same reporting sequence.

What are WLKP Phantom Units as reported in this Form 4 filing?

The filing explains that each Phantom Unit is the economic equivalent of one Common Unit of WLKP. They function as a derivative-based compensation instrument, settling in Common Units upon exercise or conversion, rather than being standard exchange-traded partnership units.

Were Lisa A. Friel’s WLKP transactions reported under a Rule 10b5-1 plan?

The Form 4’s Rule 10b5-1 checkbox is not marked as affirmatively adopted, and there is no specific footnote indicating a trading plan. The report therefore does not state that these WLKP transactions were executed pursuant to a Rule 10b5-1 trading arrangement.
SEC Form 4
FORM 4UNITED 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*
Friel Lisa A.

(Last)(First)(Middle)
2801 POST OAK BLVD., STE. 600

(Street)
HOUSTON TEXAS 77056

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Westlake Chemical Partners LP [ WLKP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/06/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Units08/06/2026M5,005A(1)12,168D
Common Units08/06/2026D2,502D$21.359,666D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Phantom Units(1)08/06/2026M5,00508/06/202609/06/2026Common Units5,005$00D
Explanation of Responses:
1. Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer.
Remarks:
Ms. Friel is a Director of Westlake Chemical Partners GP LLC, the general partner of Westlake Chemical Partners LP.
Lisa Friel by J Feng POA08/07/2026
** Signature of Reporting PersonDate
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: SEC 1474 (03-26)