California Public Employees Retirement System’s West Pharmaceutical WST Stock Holding History

California Public Employees Retirement System’s Portfolio WST Stock Details WST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$58.4M	Buy	232,917 +109,581	+89%	+$27.3M	0.04%	310
2025 Q4	$33.9M	Buy	123,336 +830	+0.7%	+$227K	0.02%	471
2025 Q3	$32.1M	Buy	122,506 +28,250	+30%	+$6.87M	0.02%	503
2025 Q2	$20.6M	Buy	94,256 +4,562	+5%	+$975K	0.01%	603
2025 Q1	$20.1M	Sell	89,694 -26,116	-23%	-$7.2M	0.01%	594
2024 Q4	$37.9M	Buy	115,810 +16,595	+17%	+$5.22M	0.03%	456
2024 Q3	$29.8M	Sell	99,215 -31,826	-24%	-$9.75M	0.02%	531
2024 Q2	$43.2M	Sell	131,041 -4,729	-3%	-$1.67M	0.03%	414
2024 Q1	$53.7M	Sell	135,770 -5,141	-4%	-$1.9M	0.04%	388
2023 Q4	$49.6M	Sell	140,911 -3,041	-2%	-$1.08M	0.04%	388
2023 Q3	$54M	Buy	143,952 +4,760	+3%	+$1.84M	0.05%	359
2023 Q2	$53.2M	Sell	139,192 -31,205	-18%	-$11.1M	0.05%	356
2023 Q1	$59M	Sell	170,397 -185,946	-52%	-$54.3M	0.05%	332
2022 Q4	$83.9M	Sell	356,343 -179,028	-33%	-$42.4M	0.07%	271
2022 Q3	$132M	Sell	535,371 -9,573	-2%	-$2.92M	0.12%	163
2022 Q2	$165M	Sell	544,944 -8,435	-2%	-$2.74M	0.15%	142
2022 Q1	$227M	Sell	553,379 -7,987	-1%	-$3.13M	0.18%	128
2021 Q4	$263M	Sell	561,366 -10,868	-2%	-$4.68M	0.18%	123
2021 Q3	$243M	Buy	572,234 +7,725	+1%	+$3.26M	0.18%	124
2021 Q2	$203M	Buy	564,509 +15,114	+3%	+$4.99M	0.15%	146
2021 Q1	$155M	Buy	549,395 +270,054	+97%	+$77.3M	0.12%	175
2020 Q4	$79.1M	Buy	279,341 +110,391	+65%	+$31M	0.06%	310
2020 Q3	$46.4M	Buy	168,950 +3,904	+2%	+$1.03M	0.04%	381
2020 Q2	$37.5M	Sell	165,046 -798	-0.5%	-$157K	0.04%	405
2020 Q1	$25.3M	Sell	165,844 -9,608	-5%	-$1.48M	0.03%	430
2019 Q4	$26.4M	Sell	175,452 -2,798	-2%	-$407K	0.02%	532
2019 Q3	$25.3M	Buy	178,250 +47,277	+36%	+$6.51M	0.03%	502
2019 Q2	$16.4M	Buy	130,973 +3,293	+3%	+$389K	0.02%	580
2019 Q1	$14.1M	Sell	127,680 -5,041	-4%	-$524K	0.02%	656
2018 Q4	$13M	Sell	132,721 -9,395	-7%	-$1.02M	0.02%	654
2018 Q3	$17.5M	Sell	142,116 -175	-0.1%	-$19.6K	0.02%	641
2018 Q2	$14.1M	Sell	142,291 -17,416	-11%	-$1.6M	0.02%	727
2018 Q1	$14.1M	Sell	159,707 -2,765	-2%	-$259K	0.02%	723
2017 Q4	$16M	Buy	162,472 +4,713	+3%	+$462K	0.02%	687
2017 Q3	$15.2M	Sell	157,759 -11,541	-7%	-$1.04M	0.02%	663
2017 Q2	$16M	Buy	169,300 +7,200	+4%	+$662K	0.03%	626
2017 Q1	$13.2M	Sell	162,100 -16,600	-9%	-$1.39M	0.02%	705
2016 Q4	$15.2M	Sell	178,700 -19,200	-10%	-$1.51M	0.03%	630
2016 Q3	$14.7M	Sell	197,900 -4,700	-2%	-$373K	0.02%	651
2016 Q2	$15.4M	Sell	202,600 -5,100	-2%	-$371K	0.02%	642
2016 Q1	$14.4M	Sell	207,700 -10,800	-5%	-$650K	0.02%	666
2015 Q4	$13.2M	Hold	218,500	–	–	0.02%	717
2015 Q3	$11.8M	Sell	218,500 -2,300	-1%	-$134K	0.02%	748
2015 Q2	$12.8M	Buy	220,800 +23,200	+12%	+$1.29M	0.02%	772
2015 Q1	$10M	Hold	197,600	–	–	0.01%	942
2014 Q4	$10M	Sell	197,600 -5,200	-3%	-$260K	0.01%	942
2014 Q3	$9.08M	Buy	202,800 +57,300	+39%	+$2.43M	0.01%	999
2014 Q2	$6.14M	Sell	145,500 -3,600	-2%	-$154K	0.01%	1284
2014 Q1	$6.59M	Buy	149,100 +6,500	+5%	+$306K	0.01%	1212
2013 Q4	$7.06M	Buy	142,600 +9,926	+7%	+$465K	0.01%	1168
2013 Q3	$5.46M	Buy	132,674 +26,400	+25%	+$1.01M	0.01%	1192
2013 Q2	$3.73M	Buy	+106,274	New	+$3.5M	0.01%	1320

Other funds holding WST

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

Artisan Partners Milwaukee, Wisconsin $62.3B AUM 26.25% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

GIM

Generation Investment Management London, United Kingdom $11.2B AUM 0.58% 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

California Public Employees Retirement System's WST Position: Q1 2026 in Review

California Public Employees Retirement System increased its West Pharmaceutical (WST) stake by 89% in Q1 2026, buying an estimated $27.3M and bringing the position to 232,917 shares worth $58.4M. The position accounts for 0.04% of the portfolio, ranked #310.

California Public Employees Retirement System first reported a position in WST in Q2 2013 and has held it in 52 quarters since. The position peaked at $263M in Q4 2021. 753 funds tracked by Wall St. Rank hold WST as of Q1 2026.

California Public Employees Retirement System held 232,917 shares of West Pharmaceutical worth $58.4M as of Q1 2026.
California Public Employees Retirement System bought 109,581 West Pharmaceutical shares in Q1 2026, an estimated $27.3M.
West Pharmaceutical made up 0.04% of California Public Employees Retirement System's portfolio in Q1 2026, its #310 holding.
California Public Employees Retirement System first reported a position in West Pharmaceutical in Q2 2013 and has held it in 52 quarters since.
California Public Employees Retirement System's West Pharmaceutical position peaked at $263M in Q4 2021.
753 funds tracked by Wall St. Rank held West Pharmaceutical as of Q1 2026.

Based on California Public Employees Retirement System's 13F filing for Q1 2026, filed 6 May 2026.