Chao Albert

Director · Officer · WLK

As of 2026-09-16, Chao Albert has 24 Form 4 transactions on record across 1 company — 16 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $2.7MIndirect: $0$2.7Mas of 2026-09-16
  • Direct $2.7M
  • Indirect $0
WLKdirect38,873 sh$2.7M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

WLK · 24 trades
2026-08-11: Sale, 31,384 sh ($2.5M)2026-08-11: Option exercise, 38,873 sh ($2.4M)2026-08-11: Sale, 7,489 sh ($597K)2026-08-11: Option exercise, 38,873 sh ($0)2026-02-20: Withheld for tax, 2,501 sh ($235K)2026-02-20: Award / grant, 14,945 sh ($0)2026-02-20: Award / grant, 54,763 sh ($0)2026-02-19: Award / grant, 6,193 sh ($0)2026-02-18: Withheld for tax, 5,089 sh ($504K)2026-02-17: Option exercise, 16,555 sh ($0)2026-02-17: Option exercise, 16,555 sh ($0)2025-12-22: Option exercise, 81,673 sh ($3.6M)2025-12-22: Sale, 30,604 sh ($2.3M)2025-12-22: Sale, 9,711 sh ($707K)2025-12-22: Sale, 521 sh ($39K)2025-12-22: Option exercise, 81,673 sh ($0)2025-02-21: Withheld for tax, 13,390 sh ($1.5M)2025-02-21: Award / grant, 12,322 sh ($0)2025-02-21: Award / grant, 37,172 sh ($0)2025-02-20: Award / grant, 33,456 sh ($0)2025-02-19: Withheld for tax, 5,820 sh ($649K)2025-02-19: Withheld for tax, 249 sh ($28K)2025-02-18: Option exercise, 17,972 sh ($0)2025-02-18: Option exercise, 17,972 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-11WLKSale31,384 @ $80.42$2.5M−4.7% of holding642,880Form 4
2026-08-11WLKSale7,489 @ $79.70$597K−1.1% of holding674,264Form 4
2025-12-22WLKSale30,604 @ $73.80$2.3M−4.6% of holding628,243Form 4
2025-12-22WLKSale9,711 @ $72.82$707K−1.5% of holding658,847Form 4
2025-12-22WLKSale521 @ $74.44$39K−0.1% of holding627,722Form 4
19 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-11WLKOption exercise38,873681,753Form 4
2026-08-11WLKOption exercise38,87338,873Form 4
2026-02-20WLKWithheld for tax2,501642,880Form 4
2026-02-20WLKAward / grant14,94514,945Form 4
2026-02-20WLKAward / grant54,76354,763Form 4
2026-02-19WLKAward / grant6,193645,381Form 4
2026-02-18WLKWithheld for tax5,089639,188Form 4
2026-02-17WLKOption exercise16,555644,277Form 4
2026-02-17WLKOption exercise16,5550Form 4
2025-12-22WLKOption exercise81,673668,558Form 4
2025-12-22WLKOption exercise81,6730Form 4
2025-02-21WLKWithheld for tax13,390586,885Form 4
2025-02-21WLKAward / grant12,32212,322Form 4
2025-02-21WLKAward / grant37,17237,172Form 4
2025-02-20WLKAward / grant33,456600,275Form 4
2025-02-19WLKWithheld for tax5,820567,068Form 4
2025-02-19WLKWithheld for tax249566,819Form 4
2025-02-18WLKOption exercise17,9720Form 4
2025-02-18WLKOption exercise17,972572,888Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.