Vanguard Group
PSIX

Vanguard Group’s Power Solutions International PSIX Stock Holding History

Vanguard Group’s Portfolio PSIX Stock Details PSIX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		$30.9M Buy
539,978
+37,597
+7% +$2.68M ﹤0.01% 2425
2025
Q3 		$49.3M Buy
502,381
+140,743
+39% +$12.5M ﹤0.01% 2159
2025
Q2 		$23.4M Buy
361,638
+86,945
+32% +$3.22M ﹤0.01% 2487
2025
Q1 		$6.94M Buy
+274,693
New +$9.47M ﹤0.01% 3042
2017
Q2 		– Sell
-181,008
Closed -$1.83M – 4084
2017
Q1 		$1.83M Buy
181,008
+59,976
+50% +$372K ﹤0.01% 3407
2016
Q4 		$908K Sell
121,032
-67,562
-36% -$741K ﹤0.01% 3587
2016
Q3 		$1.93M Buy
188,594
+14,766
+8% +$212K ﹤0.01% 3411
2016
Q2 		$3.1M Buy
173,828
+7,610
+5% +$111K ﹤0.01% 3201
2016
Q1 		$2.29M Buy
166,218
+11,142
+7% +$133K ﹤0.01% 3318
2015
Q4 		$2.83M Buy
155,076
+150
+0.1% +$3.23K ﹤0.01% 3256
2015
Q3 		$3.52M Buy
154,926
+3,338
+2% +$122K ﹤0.01% 3130
2015
Q2 		$8.19M Buy
151,588
+3,822
+3% +$225K ﹤0.01% 2777
2015
Q1 		$9.5M Buy
147,766
+8,550
+6% +$446K ﹤0.01% 2671
2014
Q4 		$7.19M Buy
139,216
+3,995
+3% +$237K ﹤0.01% 2702
2014
Q3 		$9.33M Buy
135,221
+18,476
+16% +$1.25M ﹤0.01% 2531
2014
Q2 		$8.4M Buy
116,745
+4,392
+4% +$337K ﹤0.01% 2582
2014
Q1 		$8.45M Buy
112,353
+14,941
+15% +$1.08M ﹤0.01% 2561
2013
Q4 		$7.32M Buy
97,412
+7,400
+8% +$485K ﹤0.01% 2602
2013
Q3 		$5.32M Buy
+90,012
New +$4.38M ﹤0.01% 2711

Other funds holding PSIX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
SA
Situational Awareness San Francisco, California $13.7B AUM 334.5% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
AP
Antipodes Partners Royal Exchange, Australia $5.19B AUM 36.17% 1-Year Est. Return
BB
Busey Bank Urbana, Illinois $3.68B AUM 26.6% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Vanguard Group's PSIX Position: Q4 2025 in Review

Vanguard Group increased its Power Solutions International (PSIX) stake by 7.5% in Q4 2025, buying an estimated $2.68M and bringing the position to 539,978 shares worth $30.9M. The position accounts for ﹤0.01% of the portfolio, ranked #2425.

Vanguard Group first reported a position in PSIX in Q3 2013 and has held it in 19 quarters since. The position peaked at $49.3M in Q3 2025. 193 funds tracked by Wall St. Rank hold PSIX as of Q4 2025.

  • Vanguard Group held 539,978 shares of Power Solutions International worth $30.9M as of Q4 2025.
  • Vanguard Group bought 37,597 Power Solutions International shares in Q4 2025, an estimated $2.68M.
  • Power Solutions International made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #2425 holding.
  • Vanguard Group first reported a position in Power Solutions International in Q3 2013 and has held it in 19 quarters since.
  • Vanguard Group's Power Solutions International position peaked at $49.3M in Q3 2025.
  • 193 funds tracked by Wall St. Rank held Power Solutions International as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.