Jim Simons
PSIX

Jim Simons’s Power Solutions International PSIX Stock Holding History

Jim Simons’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
2026
Q1 		– Sell
-107,898
Closed -$6.17M – 3778
2025
Q4 		$6.17M Buy
107,898
+1,400
+1% +$99.9K 0.01% 1191
2025
Q3 		$10.5M Buy
106,498
+50,102
+89% +$4.44M 0.01% 1076
2025
Q2 		$3.65M Buy
+56,396
New +$2.09M ﹤0.01% 1721
2016
Q2 		– Sell
-26,946
Closed -$372K – 3539
2016
Q1 		$372K Buy
+26,946
New +$321K ﹤0.01% 2924
2015
Q4 		– Sell
-17,326
Closed -$393K – 3462
2015
Q3 		$393K Sell
17,326
-28,967
-63% -$1.06M ﹤0.01% 2698
2015
Q2 		$2.5M Buy
+46,293
New +$2.72M 0.01% 1917

Other funds holding PSIX

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
BB
Busey Bank Urbana, Illinois $3.68B AUM 26.6% 1-Year Est. Return
SG Americas Securities
SG Americas Securities New York $179B AUM 65.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jim Simons's PSIX Position: Q1 2026 in Review

Jim Simons sold out of Power Solutions International (PSIX) in Q1 2026, closing a stake of 107,898 shares — an estimated $6.17M sold.

Jim Simons first reported a position in PSIX in Q2 2015 and held it in 6 quarters. The position peaked at $10.5M in Q3 2025. 201 funds tracked by Wall St. Rank hold PSIX as of Q1 2026.

  • Jim Simons reported no remaining Power Solutions International position as of Q1 2026 after selling out during the quarter.
  • Jim Simons sold 107,898 Power Solutions International shares in Q1 2026, an estimated $6.17M.
  • Jim Simons first reported a position in Power Solutions International in Q2 2015 and held it in 6 quarters.
  • Jim Simons's Power Solutions International position peaked at $10.5M in Q3 2025.
  • 201 funds tracked by Wall St. Rank held Power Solutions International as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.