WLKP Westlake Chemical Partners (WLKP) Insider Trading, Ownership & Congress Trades
Materials · Industrial organic chemicals · CIK 0001604665
SEC filings
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
27
13F, latest reported quarter
Conversions, 180 days
3
Codes C/M, not in net · no price filed
Westlake Chemical Partners insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
No insider purchases or sales are on record for Westlake Chemical Partners LP in the period covered. Source: SEC Form 4 filings, as of 2026-10-28.
Insider
Filed
Shares
Value
Since filing
Context
- 13 earlier Form 4 trades (code P or S) here by this insider (13 buys), the last on Aug 21, 2025.
- +3.2% median (-1.7% mean) 90-day return after 12 previous buys.
- The trade is 0.8% of the 11,803 shares held after it.
- No other insider bought within 30 days.
- 27 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President and CEO Gilson Jean-Marc bought about $2.0K of WLKP on Aug 27, 2025; 27 funds added in the latest 13F quarter.Context
- 12 earlier Form 4 trades (code P or S) here by this insider (12 buys), the last on Aug 20, 2025.
- +3.6% median (-0.3% mean) 90-day return after 11 previous buys.
- The trade is 10.7% of the 11,708 shares held after it.
- No other insider bought within 30 days.
- 27 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President and CEO Gilson Jean-Marc bought about $27.5K of WLKP on Aug 21, 2025; 27 funds added in the latest 13F quarter.Context
- 11 earlier Form 4 trades (code P or S) here by this insider (11 buys), the last on Aug 15, 2025.
- +3.6% median (+1.3% mean) 90-day return after 10 previous buys.
- The trade is 12.0% of the 10,458 shares held after it.
- No other insider bought within 30 days.
- 27 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President and CEO Gilson Jean-Marc bought about $27.3K of WLKP on Aug 20, 2025; 27 funds added in the latest 13F quarter.Context
- 10 earlier Form 4 trades (code P or S) here by this insider (10 buys), the last on May 29, 2025.
- +3.6% median (+2.8% mean) 90-day return after 9 previous buys.
- The trade is 51.0% of the 9,208 shares held after it.
- No other insider bought within 30 days.
- 27 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President and CEO Gilson Jean-Marc bought about $102.6K of WLKP on Aug 15, 2025, the largest insider purchase at the company since 2024; 27 funds added in the latest 13F quarter.Context
- 4 earlier Form 4 trades (code P or S) here by this insider (4 sales), the last on May 28, 2025.
- No other insider sold within 30 days.
- 27 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Senior Chairman Chao James sold about $81.8K of WLKP on May 29, 2025; 27 funds added in the latest 13F quarter.45 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
no insider buys or sells on file
Congress
no House purchase disclosed in the last 12 months
Funds
27 funds bought in last quarter
below 84% of Materials
Revenue
+2.7% year over year
more than 60% of Materials
Margin
4.2% net margin
more than 60% of Materials
Buybacks
no share repurchases reported
Short interest
0.7% of the float short (float per yahoo 2026-10-27) · 5.9 days to cover · settled 2026-10-15
below 84% of Materials
What changed in the last 30 days
Nothing new filed in the last 30 days
Watch WLKP
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+19.6%12M
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns WLKP: institutional holders (13F)
13F holdings, latest reported quarter
4,972,812 sh
$110.7M
1,589,566 sh
$35.4M
719,852 sh
$16.0M
633,569 sh
$14.1M
442,165 sh
$9.8M
Congress trades in WLKP
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
WLKP planned insider sales (Form 144)
No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
WLKP mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
Global X SuperDividend U.S. ETF
$15.7M position · as of 2026-07-31
2.0%
Invesco SteelPath MLP Income Fund
$75.8M position · as of 2026-05-31
1.7%
ClearBridge Tactical Dividend Income Fund
$6.2M position · as of 2026-07-31
1.7%
Invesco SteelPath MLP Select 40 Fund
$37.8M position · as of 2026-05-31
1.6%
FT Energy Income Partners Enhanced Income ETF
$7.1M position · as of 2026-05-31
0.7%
Arrow Dow Jones Global Yield ETF
$230.2K position · as of 2026-07-31
0.6%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Executive pay vs shareholder return · Mr. Albert Chao
CEO pay, headline and as actually paid, against the company's
return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2023
$125.6K
$125.6K
$72.1K
+14%
+14%
2022
$120.1K
$120.1K
$66.0K
+14%
+8%
2021
$116.3K
$116.3K
$63.9K
+21%
+24%
Tagged by the company under SEC Item 402(v). Returns are
cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows 27 funds added last quarter. Each figure is a federal filing, dated the day it went public.
WLKP financials
Revenue growth
+2.7%
XBRL, annual
Net margin
4.2%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$1.2B
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM WLKP
| FY Dec 2025 | $1.2B |
| FY Dec 2024 | $1.1B |
| FY Dec 2023 | $1.2B |
| FY Dec 2022 | $1.6B |
| FY Dec 2021 | $1.2B |
| Jun 2026 | $297.1M |
| Mar 2026 | $305.7M |
| Dec 2025 | $323.0M |
| Sep 2025 | $308.9M |
| Jun 2025 | $297.1M |
| Mar 2025 | $237.6M |
| Dec 2024 | $290.1M |
| Sep 2024 | $277.0M |
At each fiscal year end
Single quarter
Net margin, TTM
+4.7%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM WLKP
| FY Dec 2025 | +4.2% |
| FY Dec 2024 | +5.5% |
| FY Dec 2023 | +4.6% |
| FY Dec 2022 | +4.0% |
| FY Dec 2021 | +6.8% |
| Jun 2026 | +4.8% |
| Mar 2026 | +4.6% |
| Dec 2025 | +4.5% |
| Sep 2025 | +4.7% |
| Jun 2025 | +4.9% |
| Mar 2025 | +2.1% |
| Dec 2024 | +5.2% |
| Sep 2024 | +6.5% |
At each fiscal year end
Single quarter
Free cash flow, TTM
$409.1M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM WLKP
| FY Dec 2025 | $201.7M |
| FY Dec 2024 | $436.0M |
| FY Dec 2023 | $405.2M |
| FY Dec 2022 | $409.6M |
| FY Dec 2021 | $327.3M |
| Jun 2026 | $117.4M |
| Mar 2026 | $104.6M |
| Dec 2025 | $111.5M |
| Sep 2025 | $75.6M |
| Jun 2025 | -$15.3M |
| Mar 2025 | $29.8M |
| Dec 2024 | $119.0M |
| Sep 2024 | $110.5M |
At each fiscal year end
Single quarter
Debt to equity
n/a
no debt line filed
Debt to equity WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
n/a
no debt line filed
Cash flow to debt WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
n/a
no equity line filed
Return on equity WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
+4.6%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets WLKP
| FY Dec 2025 | +3.8% |
| FY Dec 2024 | +4.8% |
| FY Dec 2023 | +4.0% |
| FY Dec 2022 | +4.5% |
| FY Dec 2021 | +5.8% |
| Jun 2026 | +4.6% |
| Mar 2026 | +4.4% |
| Dec 2025 | +3.8% |
| Sep 2025 | +3.8% |
| Jun 2025 | +4.1% |
| Mar 2025 | +3.9% |
| Dec 2024 | +4.8% |
| Sep 2024 | +4.7% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
no debt line filed
Return on invested capital WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
+29.6%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed WLKP
| FY Dec 2025 | +26.2% |
| FY Dec 2024 | +31.3% |
| FY Dec 2023 | +27.9% |
| FY Dec 2022 | +26.0% |
| FY Dec 2021 | +30.5% |
| Jun 2026 | +29.6% |
| Mar 2026 | +29.9% |
| Dec 2025 | +26.2% |
| Sep 2025 | +26.2% |
| Jun 2025 | +27.5% |
| Mar 2025 | +27.8% |
| Dec 2024 | +31.3% |
| Sep 2024 | +31.2% |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
fewer than four consecutive quarters of diluted EPS
P/E, trailing WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
n/a
no debt line filed
Enterprise value WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
+54.9%
TTM free cash flow over market value at close 2026-10-27
FCF yield WLKP
| FY Dec 2025 | +30.1% |
| FY Dec 2024 | +53.5% |
| FY Dec 2023 | +53.1% |
| FY Dec 2022 | +49.5% |
| FY Dec 2021 | +34.6% |
| Jun 2026 | +52.1% |
| Mar 2026 | +35.5% |
| Dec 2025 | +30.1% |
| Sep 2025 | +28.3% |
| Jun 2025 | +31.4% |
| Mar 2025 | +45.6% |
| Dec 2024 | +53.5% |
| Sep 2024 | +52.2% |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
fewer than four consecutive quarters of diluted EPS
PEG, trailing WLKP
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-27. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Revenue | $1.2B | $1.1B | $1.2B | $1.6B |
| Gross profit | $347.8M | $418.9M | $387.5M | $377.4M |
| Operating income | $319.6M | $390.4M | $357.7M | $347.7M |
| Net income | $48.7M | $62.4M | $54.3M | $64.2M |
| Operating cash flow | $280.5M | $485.0M | $452.0M | $463.7M |
| Cash | $44.3M | $58.3M | $58.6M | $64.8M |
SEC XBRL, fiscal years, as known on 2026-10-28
WLKP Stock Sonar score 4/7 axes
Find similar shapesCompareWLKP ranks highest on risk and compliance (93rd percentile) and profitability (81st), and lowest on institutional and government (17th), among Materials peers.
4 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
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