Chao Albert
Executive Chairman
SaleAlert
- Shares
- 31,384
- Price
- $80.42
- Value
- $2,523,901
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•63 filings
WLK
WESTLAKE CORP
Net sales of $3.1M over the last 3 months
1 seller account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
−$3,120,775
0 buyers · 1 sellers
12-month purchases
$0.00
0 distinct insiders
12-month sales
$7,185,808
3 distinct insiders
Highlighted alerts
6
0 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
No executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
100
Raw transactions
Everything returned by the filing
6
Voluntary view
P/S trades after deterministic checks
93
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- A
- Shares
- 1,791
- Price
- $0.00
- Footnotes
- 2
Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock. All of the RSUs will vest on August 31, 2029.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Chao Albert
Executive Chairman
SaleAlert
- Shares
- 7,489
- Price
- $79.70
- Value
- $596,873
Buesinger Robert F.
EVP, PEM Segment Head
SaleAlert
- Shares
- 4,000
- Price
- $115.25
- Value
- $461,000
Bender Mark Steven
EVP & CFO
SaleAlert
- Shares
- 16,413
- Price
- $112.54
- Value
- $1,847,037
Bender Mark Steven
EVP & CFO
SaleAlert
- Shares
- 421
- Price
- $101.52
- Value
- $42,738
Bender Mark Steven
EVP & CFO
SaleAlert
- Shares
- 16,988
- Price
- $100.91
- Value
- $1,714,259
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Aug 11, 2026 | Chao Albert Executive Chairman | Sale | 31,384 | $80.42 | $2,523,901 | |
| Aug 11, 2026 | Chao Albert Executive Chairman | Sale | 7,489 | $79.70 | $596,873 | |
| Mar 27, 2026 | Buesinger Robert F. EVP, PEM Segment Head | Sale | 4,000 | $115.25 | $461,000 | |
| Mar 27, 2026 | Bender Mark Steven EVP & CFO | Sale | 16,413 | $112.54 | $1,847,037 | |
| Feb 27, 2026 | Bender Mark Steven EVP & CFO | Sale | 421 | $101.52 | $42,738 | |
| Feb 27, 2026 | Bender Mark Steven EVP & CFO | Sale | 16,988 | $100.91 | $1,714,259 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.