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buyModerate

Jean-Marc Gilson bought $164k of WLKP

President and CEO at Westlake Chemical Partners LP. 7,461 shares at an average of $21.93, traded Nov 27, 2024, filed Aug 28, 2025.

Conviction score
46
Value
$164k
7,461 shares
Holdings after
11,708
+176% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $164k at market
    +11
  • Relative to holdings
    Holdings up 176%
    +10
  • Price context
    No price history yet
    0
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -5.7%, 3m -12.0%, 6m +3.2%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

WLKPOct 12, 2026 · close 21.08
Since filing Aug 28, 2025: +3.7%SPY +21.5% · excess -17.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0002030037-25-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 27, 2024POpen-market purchase
Common Units
+85$23.57$2,0024,332Aug 28, 2025
Feb 25, 2025POpen-market purchase
Common Units
+83$24.75$2,0424,414Aug 28, 2025
May 29, 2025POpen-market purchase
Common Units
+94$22.20$2,0814,508Aug 28, 2025
Aug 15, 2025POpen-market purchase
Common Units
+4,700$21.84$103k9,208Aug 28, 2025
Aug 20, 2025POpen-market purchase
Common Units
+1,250$21.86$27k10,458Aug 28, 2025
Aug 21, 2025POpen-market purchase
Common Units
+1,250$22.02$28k11,708Aug 28, 2025

Related signals

Other insiders at Westlake Chemical Partners LP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
20Weak
WLKPbuy
Westlake Chemical Partners LP
Jean-Marc Gilson
President and CEO
$2,025
95 shares
+1%
28Weak
WLKPbuy
Westlake Chemical Partners LP
Jean-Marc Gilson
President and CEO
$7,344
320 shares
+10%
49Moderate
WLKPsell
Westlake Chemical Partners LP
James Chao
Senior Chairman
$82k
3,700 shares
-100%
53Moderate
WLKPsell
Westlake Chemical Partners LP
James Chao
Senior Chairman
$226k
10,208 shares
-73%
27Weak
WLKPbuy
Westlake Chemical Partners LP
Andrew Kenner
SVP, Olefin Material & Corp Pr
$51k
2,291 shares
+1%
31Weak
WLKPbuy
Westlake Chemical Partners LP
Andrew Kenner
SVP, Olefin Material & Corp Pr
$158k
7,178 shares
+4%
35Weak
WLKPbuy
Westlake Chemical Partners LP
Andrew Kenner
SVP, Olefin Material & Corp Pr
$221k
10,000 shares
+7%
30Weak
WLKPbuy
Westlake Chemical Partners LP
Andrew Kenner
SVP, Olefin Material & Corp Pr
$111k
5,000 shares
+3%
30Weak
WLKPbuy
Westlake Chemical Partners LP
Andrew Kenner
SVP, Olefin Material & Corp Pr
$94k
4,230 shares
+3%
30Weak
WLKPbuy
Westlake Chemical Partners LP
Andrew Kenner
SVP, Olefin Material & Corp Pr
$112k
5,000 shares
+4%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Jean-Marc Gilson bought $164k of WLKP | InsiderTell