PDT Partners’s Western Digital WDC Stock Holding History

PDT Partners’s Portfolio WDC Stock Details WDC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-96,400	Closed	-$11.6M	–	654
2025 Q3	$11.6M	Buy	+96,400	New	+$7.88M	0.73%	14
2023 Q4	–	Sell	-75,493	Closed	-$2.6M	–	685
2023 Q3	$2.6M	Hold	75,493	–	–	0.33%	90
2023 Q2	$2.16M	Buy	75,493 +37,967	+101%	+$1.06M	0.3%	106
2023 Q1	$1.07M	Buy	+37,526	New	+$1.1M	0.14%	246
2022 Q2	–	Sell	-7,144	Closed	-$268K	–	1175
2022 Q1	$268K	Buy	+7,144	New	+$293K	0.02%	743
2020 Q4	–	Sell	-26,725	Closed	-$738K	–	868
2020 Q3	$738K	Buy	+26,725	New	+$794K	0.05%	361
2015 Q4	–	Sell	-4,763	Closed	-$286K	–	962
2015 Q3	$286K	Sell	4,763 -42,865	-90%	-$2.58M	0.01%	1063
2015 Q2	$2.82M	Sell	47,628 -99,192	-68%	-$7.11M	0.07%	319
2015 Q1	$10.1M	Buy	+146,820	New	+$11.5M	0.25%	91
2014 Q4	–	Sell	-24,145	Closed	-$1.78M	–	1119
2014 Q3	$1.78M	Buy	+24,145	New	+$1.81M	0.05%	456
2013 Q3	–	Sell	-124,308	Closed	-$5.83M	–	1736
2013 Q2	$5.83M	Buy	+124,308	New	+$5.45M	0.14%	170

Other funds holding WDC

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

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

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 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

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

PDT Partners's WDC Position: Q4 2025 in Review

PDT Partners sold out of Western Digital (WDC) in Q4 2025, closing a stake of 96,400 shares — an estimated $11.6M sold.

PDT Partners first reported a position in WDC in Q2 2013 and held it in 11 quarters. The position peaked at $11.6M in Q3 2025. 1,170 funds tracked by Wall St. Rank hold WDC as of Q4 2025.

PDT Partners reported no remaining Western Digital position as of Q4 2025 after selling out during the quarter.
PDT Partners sold 96,400 Western Digital shares in Q4 2025, an estimated $11.6M.
PDT Partners first reported a position in Western Digital in Q2 2013 and held it in 11 quarters.
PDT Partners's Western Digital position peaked at $11.6M in Q3 2025.
1,170 funds tracked by Wall St. Rank held Western Digital as of Q4 2025.

Based on PDT Partners's 13F filing for Q4 2025, filed 17 Feb 2026.