PDT Partners’s LyondellBasell Industries LYB Stock Holding History

PDT Partners’s Portfolio LYB Stock Details LYB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$10.7M	Buy	132,400 +31,155	+31%	+$1.85M	0.63%	34
2025 Q4	$4.38M	Sell	101,245 -24,642	-20%	-$1.12M	0.28%	123
2025 Q3	$6.17M	Buy	+125,887	New	+$7.1M	0.39%	65
2022 Q3	–	Sell	-17,410	Closed	-$1.52M	–	973
2022 Q2	$1.52M	Buy	+17,410	New	+$1.81M	0.13%	244
2021 Q3	–	Sell	-8,100	Closed	-$833K	–	848
2021 Q2	$833K	Buy	+8,100	New	+$877K	0.06%	407
2020 Q1	–	Sell	-2,500	Closed	-$236K	–	772
2019 Q4	$236K	Buy	+2,500	New	+$229K	0.01%	606
2015 Q4	–	Sell	-144,216	Closed	-$12M	–	710
2015 Q3	$12M	Buy	144,216 +99,801	+225%	+$8.88M	0.27%	98
2015 Q2	$4.6M	Buy	+44,415	New	+$4.47M	0.12%	216
2015 Q1	–	Sell	-12,714	Closed	-$1.01M	–	1403
2014 Q4	$1.01M	Sell	12,714 -251,549	-95%	-$21.8M	0.1%	269
2014 Q3	$28.7M	Buy	264,263 +212,627	+412%	+$23M	0.73%	12
2014 Q2	$5.04M	Buy	51,636 +22,168	+75%	+$2.11M	0.13%	182
2014 Q1	$2.62M	Buy	29,468 +22,454	+320%	+$1.89M	0.06%	376
2013 Q4	$563K	Sell	7,014 -96,336	-93%	-$7.38M	0.07%	373
2013 Q3	$7.57M	Buy	103,350 +85,850	+491%	+$5.98M	0.21%	112
2013 Q2	$1.16M	Buy	+17,500	New	+$1.11M	0.03%	760

Other funds holding LYB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

PDT Partners's LYB Position: Q1 2026 in Review

PDT Partners increased its LyondellBasell Industries (LYB) stake by 31% in Q1 2026, buying an estimated $1.85M and bringing the position to 132,400 shares worth $10.7M. The position accounts for 0.63% of the portfolio, ranked #34.

PDT Partners first reported a position in LYB in Q2 2013 and has held it in 15 quarters since. The position peaked at $28.7M in Q3 2014. 926 funds tracked by Wall St. Rank hold LYB as of Q1 2026.

PDT Partners held 132,400 shares of LyondellBasell Industries worth $10.7M as of Q1 2026.
PDT Partners bought 31,155 LyondellBasell Industries shares in Q1 2026, an estimated $1.85M.
LyondellBasell Industries made up 0.63% of PDT Partners's portfolio in Q1 2026, its #34 holding.
PDT Partners first reported a position in LyondellBasell Industries in Q2 2013 and has held it in 15 quarters since.
PDT Partners's LyondellBasell Industries position peaked at $28.7M in Q3 2014.
926 funds tracked by Wall St. Rank held LyondellBasell Industries as of Q1 2026.

Based on PDT Partners's 13F filing for Q1 2026, filed 15 May 2026.