LYB

SEC source: 0001209191-17-009209 · doc4.xml · nonDerivative · entry 2

AI New Holdings 2 LLC · CIK 0001696975 · 10% owner

RSB 2 Ltd · CIK 0001697129 · 10% owner

ALTEP 2010 L.P. · CIK 0001509925 · Affiliate of 10% Owner

ALTEP 2011 L.P. · CIK 0001513440 · Affiliate of 10% Owner

ALTEP 2014 L.P. · CIK 0001583039 · Affiliate of 10% Owner

AI Altep Holdings, Inc · CIK 0000877116 · Affiliate of 10% Owner

Blavatnik Len · CIK 0001326628 · 10% owner

ACCESS INDUSTRIES MANAGEMENT, LLC · CIK 0001508226 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 258,175

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.1900 to $92.7450, inclusive. The reporting person undertakes to provide to LyondellBasell Industries N.V., any security holder of LyondellBasell Industries N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F4 · ownership.direct: The securities reported are held directly by Altep 2010 L.P. ("Altep 2010") and may be deemed to be indirectly beneficially owned by AI Altep Holdings, Inc. and Mr. Blavatnik because AI Altep Holdings, Inc. is the general partner of Altep 2010 and Mr. Blavatnik controls AI Altep Holdings, Inc. Each of the reporting persons (other than Altep 2010) disclaims beneficial ownership of these securities, except to the extent of its or his pecuniary interest therein, and this Form shall not be construed as an admission that any such reporting person is the beneficial owner of any such securities.

SEC source: 0001209191-17-009209 · doc4.xml · nonDerivative · entry 1

AI New Holdings 2 LLC · CIK 0001696975 · 10% owner

RSB 2 Ltd · CIK 0001697129 · 10% owner

ALTEP 2010 L.P. · CIK 0001509925 · Affiliate of 10% Owner

ALTEP 2011 L.P. · CIK 0001513440 · Affiliate of 10% Owner

ALTEP 2014 L.P. · CIK 0001583039 · Affiliate of 10% Owner

AI Altep Holdings, Inc · CIK 0000877116 · Affiliate of 10% Owner

Blavatnik Len · CIK 0001326628 · 10% owner

ACCESS INDUSTRIES MANAGEMENT, LLC · CIK 0001508226 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,681,406

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.1900 to $92.7450, inclusive. The reporting person undertakes to provide to LyondellBasell Industries N.V., any security holder of LyondellBasell Industries N.V., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2 · ownership.direct: The securities reported are held directly by AI New Holdings 2 LLC ("AI New") and may be deemed to be indirectly beneficially owned by RSB 2 Limted ("RSB 2"), Access Industries Management, LLC ("AIM LLC") and Len Blavatnik because RSB 2 is the sole member of AI New and as a result may be deemed to share voting and investment control over the shares held directly by AI New. AIM LLC is the manager of AI New and, as a result, may be deemed to have voting and investment control over the shares owned directly by AI New. Mr. Blavatnik controls AIM LLC and, as a result, may be deemed to share voting and investment power over the shares held by AI New.

F3 · ownership.direct: Each of the reporting persons (other than AI New) disclaims beneficial ownership of the securities held directly by AI New except to the extent of any pecuniary interest therein, and this Form shall not be construed as an admission that any such reporting person is the beneficial owner of any such securities.

SEC source: 0001209191-17-006116 · doc4.xml · nonDerivative · entry 1

AIPH Holdings LLC · CIK 0001564326 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by LLC

Disclosed balance after: 0

F1 · kind: Distribution by AIPH Holdings LLC of interests in limited liability company that directly holds ordinary shares pursuant to an internal reorganization.

F1 · price: Distribution by AIPH Holdings LLC of interests in limited liability company that directly holds ordinary shares pursuant to an internal reorganization.

F2 · ownership.direct: Reflects prior transfer of ordinary shares to wholly-owned subsidiary exempt pursuant to Rule 16a-13.

SEC source: 0001225208-17-001594 · doc4.xml · nonDerivative · entry 1

Brown Kevin W. · CIK 0001500337 · EVP - Manufacturing & Refining

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,203

F1 · balance_after: Includes 17,999 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,686 granted on January 21, 2015 that vest on January 21, 2018; 3,687 granted on January 21, 2015 that vest on January 21, 2019; 3,686 granted on January 21, 2015 that vest on January 21, 2020; 3,058 granted on February 17, 2015 that vest on February 17, 2018 and 3,882 granted on February 16, 2016 that vest on February 16, 2019.

SEC source: 0001225208-17-001177 · doc4.xml · nonDerivative · entry 1

Patel Bhavesh V. · CIK 0001500293 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,654

F1 · balance_after: Includes 116,964 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 875 granted on February 20, 2014 that vest on February 20, 2017; 23,638 granted on January 12, 2015 that vest on January 12, 2018; 23,638 granted on January 12, 2015 that vest on January 12, 2019; 23,637 granted on January 12, 2015 that vest on January 12, 2020; 19,110 granted on February 17, 2015 that vest on February 17, 2018 and 26,066 granted on February 16, 2016 that vest on February 16, 2019.

SEC source: 0001225208-17-000478 · doc4.xml · nonDerivative · entry 1

Aebischer Thomas · CIK 0001662213 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,758

F1 · balance_after: Includes 6,904 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,452 granted on January 1, 2016 that vest on January 1, 2018 and 3,452 granted on January 1, 2016 that vest on January 1, 2019.

SEC source: 0001225208-17-000481 · doc4.xml · nonDerivative · entry 2

SMITH BRUCE A · CIK 0001111385 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,815

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-17-000481 · doc4.xml · nonDerivative · entry 1

SMITH BRUCE A · CIK 0001111385 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,861

F1 · kind: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · shares: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · price: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-17-000480 · doc4.xml · nonDerivative · entry 2

Buchanan Robin W.T. · CIK 0001519805 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,367

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-17-000480 · doc4.xml · nonDerivative · entry 1

Buchanan Robin W.T. · CIK 0001519805 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,557

F1 · kind: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · shares: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · price: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-17-000479 · doc4.xml · nonDerivative · entry 2

DICCIANI NANCE K · CIK 0001198097 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,606.612

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-17-000479 · doc4.xml · nonDerivative · entry 1

DICCIANI NANCE K · CIK 0001198097 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,661.612

F1 · kind: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · shares: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · price: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $85.78, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-16-042406 · doc4.xml · nonDerivative · entry 1

Guilfoyle James D · CIK 0001649570 · SVP, Global I&D, Supply Chain

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,186

F1 · balance_after: Includes 3,242 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 584 granted on February 28, 2012 vest on February 28, 2017; 446 granted on February 12, 2013 vest on February 12, 2018; 331 granted on February 20, 2014 vest on February 20, 2017; 328 granted on February 17, 2015 vest on February 17, 2018; 92 granted on June 1, 2015 vest on June 1, 2018; and 1,461 granted on February 16, 2016 vest on February 16, 2019.

SEC source: 0001225208-16-040018 · doc4.xml · nonDerivative · entry 2

SMITH BRUCE A · CIK 0001111385 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,344

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-16-040018 · doc4.xml · nonDerivative · entry 1

SMITH BRUCE A · CIK 0001111385 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,418

F1 · kind: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · shares: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · price: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-16-040020 · doc4.xml · nonDerivative · entry 2

DICCIANI NANCE K · CIK 0001198097 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,197.612

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-16-040020 · doc4.xml · nonDerivative · entry 1

DICCIANI NANCE K · CIK 0001198097 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,248.612

F1 · kind: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · shares: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · price: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-16-040019 · doc4.xml · nonDerivative · entry 2

Buchanan Robin W.T. · CIK 0001519805 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,152

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001225208-16-040019 · doc4.xml · nonDerivative · entry 1

Buchanan Robin W.T. · CIK 0001519805 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,358

F1 · kind: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · shares: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F1 · price: Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for his annual retainer, which retainer is paid in quarterly installments. The number of shares issued was calculated based on $77.28, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

F2 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,093 granted on May 12, 2016 that vest on May 12, 2017.

SEC source: 0001209191-17-010682 · doc5.xml · nonDerivative · entry 1

AI International Chemicals S.a r.l. · CIK 0001508220 · 10% owner

AI INVESTMENTS HOLDINGS LLC · CIK 0001508237 · 10% owner

ACCESS INDUSTRIES, LLC · CIK 0001508227 · 10% owner

Access Industries Holdings LLC · CIK 0001391297 · 10% owner

ACCESS INDUSTRIES MANAGEMENT, LLC · CIK 0001508226 · 10% owner

Blavatnik Len · CIK 0001326628 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,144,973

F1 · kind: Exempt purchase pursuant to Rule 16a-6.

F2 · balance_after: Reflects a correction to the end of period holdings of one share.

F3 · ownership.direct: The securities reported are held directly by AI International Chemicals S.a r.l. ("AIIC") and may be deemed to be indirectly beneficially owned by AI Investments Holdings LLC ("AIIH"), Access Industries, LLC, Access Industries Holdings LLC, Access Industries Management, LLC and Len Blavatnik because AIIH holds a majority of the outstanding voting interests in AIIC, Access Industries Holdings LLC holds a majority of the outstanding voting interests in AIIH, Access Industries, LLC holds a majority of the outstanding voting interests in Access Industries Holdings LLC, Access Industries Management, LLC controls Access Industries, LLC, Access Industries Holdings LLC and AIIH, and Mr. Blavatnik controls Access Industries Management, LLC and a majority of the outstanding voting interests in Access Industries, LLC.

F4 · ownership.direct: Each of the reporting persons (other than AIIC) disclaims beneficial ownership of the securities held directly by AIIC except to the extent of any pecuniary interest therein, and this Form shall not be construed as an admission that any such reporting person is the beneficial owner of any such securities.

SEC source: 0001225208-16-040014 · doc4a.xml · nonDerivative · entry 1

SMITH BRUCE A · CIK 0001111385 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,573

F1 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 1,647 granted on May 6, 2015 that vest on May 6, 2016.

SEC source: 0001225208-16-040013 · doc4a.xml · nonDerivative · entry 1

DICCIANI NANCE K · CIK 0001198097 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,456.612

F1 · balance_after: Includes restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 1,647 granted on May 6, 2015 that vest on May 6, 2016.

SEC source: 0001225208-16-040012 · doc4a.xml · nonDerivative · entry 1

Buchanan Robin W.T. · CIK 0001519805 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,616

F1 · balance_after: Includes 1,647 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan on May 6, 2015 that vest on May 6, 2016.

SEC source: 0001562180-18-000957 · primarydocument.xml · nonDerivative · entry 1

Guilfoyle James D · CIK 0001649570 · SVP, Global I&D, Supply Chain

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,465

F1 · shares: Represents shares required to satisfy tax withholding obligations in connection with the vesting of 1,740 shares of qualified performance-based stock granted to the Reporting Person on February 12, 2013.

F2 · balance_after: Includes 4,246 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,004 granted November 28, 2011 vest on November 28, 2016; 584 granted on February 28, 2012 vest on February 28, 2017; 446 granted on February 12, 2013 vest on February 12, 2018; 331 granted on February 20, 2014 vest on February 20, 2017; 328 granted on February 17, 2015 vest on February 17, 2018; 92 granted on June 1, 2015 vest on June 1, 2018. The 1,461 RSUs reported on this Form 4 vest on February 16, 2019.

SEC source: 0001562180-18-002665 · primarydocument.xml · nonDerivative · entry 1

GWIN ROBERT G · CIK 0001277260 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,892

F1 · shares: The Form 4 filed on July 5, 2012 disclosed a number of shares withheld for taxes in connection with the annual vesting of restricted stock units, which have been adjusted in this Amendment to appropriately disclose the number of shares actually withheld. An aggregate of 1 less share from that previously reported were actually withheld. The beneficial ownership amounts have been adjusted accordingly.

F2 · balance_after: Includes 3,367 restricted stock units granted pursuant to LyondellBasell Industries N.V. Long-Term Incentive Plan that vest on the date of the annual general meeting of shareholders in 2015 but will be delivered to the reporting person on June 30, 2015.