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Insider · CIK 0001299403

Chao Albert

CIK 0001299403 Name as filed on the most recent filing

Filed as Chao Albert (44)

155 transaction lines · from 44 filings · filed 2004-08-18 to 2026-08-11 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-21 05:23 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

155 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-21 05:23 UTC.

Transactions filed by this insider
Direction Date Issuer Code Shares Price Value USD Filing
2026-08-11 Westlake Corp
WLK 		S, Open-market sale 7,489 disposed 79.70 596,873.30 Form 4, filing 0001193125-26-345140
2026-08-11 Westlake Corp
WLK 		S, Open-market sale 31,384 disposed 80.42 2,523,901.28 Form 4, filing 0001193125-26-345140
2025-12-22 Westlake Corp
WLK 		S, Open-market sale 30,604 disposed 73.80 2,258,452.78 Form 4, filing 0001193125-25-329926
2025-12-22 Westlake Corp
WLK 		S, Open-market sale 9,711 disposed 72.82 707,135.60 Form 4, filing 0001193125-25-329926
2025-12-22 Westlake Corp
WLK 		S, Open-market sale 521 disposed 74.44 38,784.80 Form 4, filing 0001193125-25-329926
2022-05-19 Westlake Corp
WLK 		S, Open-market sale 20,815 disposed 130.20 2,710,019.33 Form 4, filing 0001567619-22-011458
2022-05-19 Westlake Corp
WLK 		S, Open-market sale 12,016 disposed 131.11 1,575,450.20 Form 4, filing 0001567619-22-011458
2022-05-19 Westlake Corp
WLK 		S, Open-market sale 5,045 disposed 129.38 652,712.01 Form 4, filing 0001567619-22-011458
2021-12-02 Westlake Chemical Corp
WLK 		S, Open-market sale 20,327 disposed 92.29 1,875,978.83 Form 4, filing 0001567619-21-021628
2021-12-02 Westlake Chemical Corp
WLK 		S, Open-market sale 7,585 disposed 91.52 694,179.20 Form 4, filing 0001567619-21-021628
2021-12-02 Westlake Chemical Corp
WLK 		S, Open-market sale 1,700 disposed 89.25 151,725.00 Form 4, filing 0001567619-21-021628
2021-12-02 Westlake Chemical Corp
WLK 		S, Open-market sale 1,175 disposed 90.12 105,891.00 Form 4, filing 0001567619-21-021628
2021-12-01 Westlake Chemical Corp
WLK 		S, Open-market sale 9,656 disposed 89.47 863,922.32 Form 4, filing 0001567619-21-021537
2021-12-01 Westlake Chemical Corp
WLK 		S, Open-market sale 5,842 disposed 91.83 536,470.86 Form 4, filing 0001567619-21-021537
2021-12-01 Westlake Chemical Corp
WLK 		S, Open-market sale 4,300 disposed 93.98 404,114.00 Form 4, filing 0001567619-21-021537
2021-12-01 Westlake Chemical Corp
WLK 		S, Open-market sale 4,200 disposed 92.78 389,676.00 Form 4, filing 0001567619-21-021537
2021-12-01 Westlake Chemical Corp
WLK 		S, Open-market sale 3,789 disposed 94.80 359,197.20 Form 4, filing 0001567619-21-021537
2021-12-01 Westlake Chemical Corp
WLK 		S, Open-market sale 3,000 disposed 90.47 271,410.00 Form 4, filing 0001567619-21-021537
2021-08-11 Westlake Chemical Corp
WLK 		P, Open-market purchase 3,000 acquired 86.21 258,630.00 Form 4, filing 0001567619-21-015170
2020-11-06 Westlake Chemical Corp
WLK 		S, Open-market sale 28,638 disposed 72.08 2,064,227.04 Form 4, filing 0001567619-20-019004
2020-11-06 Westlake Chemical Corp
WLK 		S, Open-market sale 11,978 disposed 73.30 877,987.40 Form 4, filing 0001567619-20-019004
2020-11-06 Westlake Chemical Corp
WLK 		S, Open-market sale 10,334 disposed 74.29 767,712.86 Form 4, filing 0001567619-20-019004
2020-11-06 Westlake Chemical Corp
WLK 		S, Open-market sale 4,198 disposed 75.12 315,353.76 Form 4, filing 0001567619-20-019004
2020-03-24 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 3,200 acquired 13.46 43,072.00 Form 4, filing 0001567619-20-006978
2020-03-24 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 1,579 acquired 14.18 22,390.22 Form 4, filing 0001567619-20-006978
2020-03-23 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 4,780 acquired 13.12 62,713.60 Form 4, filing 0001567619-20-006926
2020-03-20 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 12,281 acquired 13.86 170,214.66 Form 4, filing 0001567619-20-006871
2020-03-20 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 1,400 acquired 14.28 19,992.00 Form 4, filing 0001567619-20-006871
2020-03-19 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 7,035 acquired 14.20 99,897.00 Form 4, filing 0001567619-20-006809
2020-03-19 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 2,100 acquired 12.44 26,124.00 Form 4, filing 0001567619-20-006809
2020-03-18 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 10,178 acquired 11.43 116,334.54 Form 4, filing 0001567619-20-006724
2020-03-18 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 5,796 acquired 12.12 70,247.52 Form 4, filing 0001567619-20-006724
2020-03-17 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 6,856 acquired 13.59 93,173.04 Form 4, filing 0001567619-20-006642
2020-03-17 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 3,680 acquired 14.26 52,476.80 Form 4, filing 0001567619-20-006642
2020-03-16 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 7,535 acquired 14.15 106,620.25 Form 4, filing 0001567619-20-006511
2020-03-13 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 3,580 acquired 15.18 54,344.40 Form 4, filing 0001567619-20-006359
2020-02-21 Westlake Chemical Corp
WLK 		S, Open-market sale 51,592 disposed 62.42 3,220,372.64 Form 4, filing 0001567619-20-004651
2018-11-19 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 10,386 acquired 23.24 241,370.64 Form 4, filing 0001567619-18-006708
2018-11-16 Westlake Chemical Corp
WLK 		S, Open-market sale 17,389 disposed 71.62 1,245,313.24 Form 4, filing 0001567619-18-006577
2018-11-16 Westlake Chemical Corp
WLK 		S, Open-market sale 7,120 disposed 72.09 513,295.04 Form 4, filing 0001567619-18-006577
2018-11-16 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 12,452 acquired 23.27 289,758.04 Form 4, filing 0001567619-18-006578
2018-11-15 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 2,492 acquired 23.20 57,819.38 Form 4, filing 0001567619-18-006578
2018-11-15 Westlake Chemical Corp
WLK 		S, Open-market sale 16,309 disposed 71.48 1,165,702.08 Form 4, filing 0001567619-18-006512
2018-11-15 Westlake Chemical Corp
WLK 		S, Open-market sale 7,100 disposed 70.43 500,060.10 Form 4, filing 0001567619-18-006512
2018-11-15 Westlake Chemical Corp
WLK 		S, Open-market sale 1,100 disposed 71.98 79,181.30 Form 4, filing 0001567619-18-006512
2018-11-14 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 11,385 acquired 23.37 266,056.06 Form 4, filing 0001567619-18-006410
2018-11-14 Westlake Chemical Corp
WLK 		S, Open-market sale 13,202 disposed 71.77 947,494.34 Form 4, filing 0001567619-18-006512
2018-11-14 Westlake Chemical Corp
WLK 		S, Open-market sale 10,519 disposed 70.92 745,954.88 Form 4, filing 0001567619-18-006512
2018-11-14 Westlake Chemical Corp
WLK 		S, Open-market sale 900 disposed 72.50 65,250.00 Form 4, filing 0001567619-18-006512
2018-11-13 Westlake Chemical Partners LP
WLKP 		P, Open-market purchase 6,220 acquired 23.24 144,577.68 Form 4, filing 0001567619-18-006410

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Search the catalog
Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase

Every value is as reported on the Form 4. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 37
  • Open-market sale 118
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. Chao Albert, insider transactions. Retrieved 2026-08-21 from https://ebomi.com/insider/0001299403

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.