電源解決方案國際公司
US ˙ NasdaqCM ˙ US73933G2021

SecurityPSIX / Power Solutions International, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership167,037 shares
Latest Disclosed Value $ 10,169,213
Morgan Stanley reports 4.42% decrease in ownership of PSIX / Power Solutions International, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 167,037 shares of Power Solutions International, Inc. (US:PSIX) valued at $10,169,213 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 174,754 shares of Power Solutions International, Inc.. This represents a change in shares of -4.42% during the quarter. The current value of the position is $6,272,239 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 167,037 -7,717 -4.42 10,169 1.84 0.0006
2026-05-27 2025-12-31 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 174,754 -22,786 -11.53 9,985 -48.54 0.0006
2026-02-13 2025-12-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 174,754 -22,786 9,985 0.0006
2026-05-27 2025-09-30 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 197,540 146,132 284.26 19,402 483.52 0.0012
2025-11-14 2025-09-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 197,540 146,132 19,402 0.0012
2025-08-15 2025-06-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 51,408 32,900 177.76 3,325 611.99 0.0002
2025-05-15 2025-03-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 18,508 14,206 330.22 468 267.72 0.0000
2025-05-15 2024-12-31 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 4,302 4,302 128 0.0000
2025-02-14 2024-12-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 4,302 4,302 128 0.0000
2017-08-11 2017-06-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 0 -19,272 -100.00 0 -100.00
2017-05-22 2017-03-31 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 19,272 794 4.30 194 39.57 0.0001
2017-05-12 2017-03-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 19,272 194
2017-02-22 2016-12-31 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 18,478 12,425 205.27 139 124.19 0.0000
2017-02-13 2016-12-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 18,478 139
2016-11-10 2016-09-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 6,053 523 9.46 62 -36.73 0.0000
2016-08-12 2016-06-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 5,530 -1,241 -18.33 98 4.26 0.0000
2016-05-12 2016-03-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 6,771 -2,551 -27.37 94 -44.71 0.0000
2016-02-09 2015-12-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 9,322 -210 -2.20 170 -21.66 0.0001
2016-02-08 2015-09-30 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 9,532 -2,825 -22.86 217 -67.51 0.0001
2015-11-09 2015-09-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 9,532 217
2015-08-12 2015-06-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 12,357 -723 -5.53 668 -20.48 0.0002
2015-05-14 2015-03-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 13,080 -526 -3.87 840 19.66 0.0003
2015-02-13 2014-12-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 13,606 -11,332 -45.44 702 -59.19 0.0003
2014-12-16 2014-09-30 13F/A-1 POWER SOLUTIONS INTL COM NEW 73933G202 24,938 -10,698 -30.02 1,720 -35.80 0.0007
2014-11-14 2014-09-30 13F POWER SOLUTIONS INTL COM NEW 73933G202 24,938 1,720
2014-05-13 2014-03-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 35,636 31,564 775.15 2,679 775.49 0.0011
2014-02-13 2013-12-31 13F POWER SOLUTIONS INTL COM NEW 73933G202 4,072 -2,410 -37.18 306 40.37 0.0001
2013-08-08 2013-06-30 13F POWER SOLUTIONS INTL INC COM 73933G202 6,482 6,482 218 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.