POWER INTEGRATIONS INC
POWI · Semiconductors & Related Devices · 55.7M shares · -1%/yr ↓ buyback · EDGAR filings ↗
Net buyback after stock comp: $27M (gross $55M, SBC $29M)
Reference price $83.67 · est. market cap ~$4.7B — last insider sale, 2026-05-29 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
C62High-gross-margin, debt-free power-semiconductor maker with strong liquidity, but thin operating margin and an earnings dip.
Strengths
- High gross margin, debt-free — gross margin 54.5% (68th), current ratio 6.51 (84th), no debt
- Strong free cash flow — FCF margin 19.6% (76th), FCF $87.1M
Risks
- Thin operating margin — 2.3% (52nd); net income -31.5% (42nd)
- Modest growth — revenue +5.9% (34th)
- Semiconductor cyclicality and customer concentration — qualitative (per 10-K)
Notable findings
- Customer concentration~98% of revenue from one customer/distributor — International sales represented approximately 98% of net revenue in each of 2025 and 2024
- Exec changeRecent 8-K item 5.02 8-K ↗
- Fund exitedNotable fund(s) exited this quarter: VANGUARD GROUP INC, RENAISSANCE TECHNOLOGIES LLC
- Strong balance sheetStrong balance sheet — $250M cash & investments
- Insider sellingInsider selling — 30 open-market sale(s) by 5 insider(s) (cluster of 5 insiders, ~$29M, last 6mo) Form 4 ↗
- Notable holderHeld by 4 notable fund(s): STATE STREET CORP, GOLDMAN SACHS GROUP INC, CITADEL ADVISORS LLC +1 more (as of 2026-03-31)
- China exposureChanges in global trade, in particular the escalation and imposition of new and higher tariffs and additional export controls, could reduce demand for end products that incorporate our products, which
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
54.5%
Operating margin
2.3%
Net margin
5.0%
Return on equity
3.3%
Return on assets
2.9%
Revenue growth (QoQ)
4.9%
Net-income growth
-31.5%
Current ratio
6.5×
Free cash flow
$87M
Tangible book value
$570M
Cash & investments
$250M
Stock comp / revenue
8.9%
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-05-29 | Gupta Sunil | Sell | 6.9K | $83.67 |
| 2026-05-28 | BALAKRISHNAN BALU | Sell | 95K | $86.25 |
| 2026-05-28 | BALAKRISHNAN BALU | Sell | 29K | $87.05 |
| 2026-05-27 | BRATHWAITE NICHOLAS | Sell | 1.7K | $86.62 |
| 2026-05-26 | BALAKRISHNAN BALU | Sell | 71K | $82.26 |
| 2026-05-26 | Gupta Sunil | Sell | 16K | $82.18 |
| 2026-05-26 | BRATHWAITE NICHOLAS | Sell | 6.7K | $82.71 |
| 2026-05-26 | BALAKRISHNAN BALU | Sell | 48K | $80.93 |
| 2026-05-21 | BALAKRISHNAN BALU | Sell | 54K | $70.71 |
| 2026-05-15 | Balow Michael | Grant | 33K | — |
| 2026-05-13 | BRATHWAITE NICHOLAS | Sell | 6.9K | $72.41 |
| 2026-04-02 | Jain Gagan | Sell | 91 | $51.93 |
| 2026-04-02 | Jain Gagan | Sell | 64 | $51.93 |
| 2026-04-02 | Jain Gagan | Sell | 53 | $51.93 |
| 2026-04-02 | Jain Gagan | Sell | 105 | $51.93 |
| 2026-02-27 | Lloyd Jennifer A | Grant | 73K | — |
| 2026-02-25 | Jain Gagan | Sell | 3.2K | $48.22 |
| 2026-02-25 | Jain Gagan | Sell | 262 | $48.30 |
| 2026-02-10 | Gupta Sunil | Sell | 1.3K | $45.97 |
| 2026-02-10 | BALAKRISHNAN BALU | Sell | 5.0K | $47.20 |
| 2026-02-09 | Jain Gagan | Disposition | 938 | $46.57 |
| 2026-02-09 | BALAKRISHNAN BALU | Sell | 6.4K | $46.53 |
| 2026-02-09 | Lloyd Jennifer A | Sell | 3.3K | $46.57 |
| 2026-02-09 | Gupta Sunil | Sell | 1.4K | $46.57 |
| 2026-02-06 | BALAKRISHNAN BALU | Grant | 12K | — |
| 2026-02-06 | Gupta Sunil | Grant | 3.8K | — |
| 2026-02-06 | Jain Gagan | Grant | 2.5K | — |
| 2026-02-06 | Lloyd Jennifer A | Grant | 5.9K | — |
| 2026-02-03 | BALAKRISHNAN BALU | Sell | 3.5K | $44.75 |
| 2026-02-03 | BALAKRISHNAN BALU | Sell | 6.6K | $44.75 |
| 2026-02-03 | Gupta Sunil | Sell | 768 | $45.58 |
| 2026-02-03 | Gupta Sunil | Sell | 1.4K | $45.58 |
| 2026-02-03 | Jain Gagan | Sell | 63 | $45.58 |
| 2026-02-03 | Jain Gagan | Sell | 94 | $45.58 |
| 2026-02-02 | Erba Nancy | Grant | 64K | — |
| 2026-01-29 | Jain Gagan | Sell | 995 | $46.50 |
| 2026-01-29 | BALAKRISHNAN BALU | Sell | 5.6K | $46.59 |
| 2026-01-29 | Gupta Sunil | Sell | 1.7K | $46.50 |
| 2026-01-27 | Jain Gagan | Grant | 16K | — |
| 2026-01-27 | Gupta Sunil | Grant | 23K | — |
| 2026-01-27 | Jain Gagan | Grant | 11K | — |
| 2026-01-27 | Gupta Sunil | Grant | 33K | — |
| 2025-11-24 | Jain Gagan | Sell | 1.0K | $33.80 |
| 2025-11-04 | Verity Robert Eric | Sell | 110 | $40.21 |
| 2025-11-04 | Jain Gagan | Sell | 111 | $40.22 |
| 2025-11-03 | Verity Robert Eric | Grant | 2.4K | — |
| 2025-09-24 | Jain Gagan | Sell | 456 | $41.43 |
| 2025-08-22 | Bailey Doug | Sell | 15K | $47.38 |
| 2025-08-18 | Bailey Doug | Sell | 17K | $46.41 |
| 2025-08-14 | Bailey Doug | Sell | 17K | $46.86 |
| 2025-08-12 | Jain Gagan | Sell | 2.0K | $46.05 |
| 2025-08-01 | Lloyd Jennifer A | Grant | 52K | — |
| 2025-08-01 | Lloyd Jennifer A | Grant | 21K | — |
| 2025-07-01 | Vig Ravi | Grant | 3.5K | — |
| 2025-07-01 | BRATHWAITE NICHOLAS | Grant | 3.5K | — |
| 2025-07-01 | Ganti Anita | Grant | 3.5K | — |
| 2025-07-01 | IYER BALAKRISHNAN S | Grant | 3.5K | — |
| 2025-07-01 | Gioia Nancy Lee | Grant | 3.5K | — |
| 2025-07-01 | Arienzo Wendy | Grant | 3.5K | — |
| 2025-07-01 | LOWE GREGG A | Grant | 3.5K | — |
| 2025-04-02 | WALKER CLIFFORD | Sell | 1.1K | $50.89 |
| 2025-04-02 | NAYYAR SANDEEP | Sell | 1.9K | $50.89 |
| 2025-04-02 | Jain Gagan | Sell | 96 | $50.89 |
| 2025-04-02 | Jain Gagan | Sell | 104 | $50.89 |
| 2025-04-02 | Jain Gagan | Sell | 51 | $50.89 |
| 2025-04-02 | Jain Gagan | Sell | 62 | $50.89 |
| 2025-04-02 | Jain Gagan | Sell | 89 | $50.89 |
| 2025-04-02 | Barsan Radu | Sell | 1.7K | $50.89 |
| 2025-04-02 | BALAKRISHNAN BALU | Sell | 9.5K | $51.19 |
| 2025-04-02 | Bailey Doug | Sell | 1.1K | $50.89 |
| 2025-02-20 | Barsan Radu | Sell | 10K | $66.08 |
| 2025-02-18 | LOWE GREGG A | Grant | 728 | — |
| 2025-02-11 | NAYYAR SANDEEP | Sell | 3.4K | $57.28 |
| 2025-02-11 | Gupta Sunil | Sell | 1.3K | $57.28 |
| 2025-02-11 | Barsan Radu | Sell | 1.7K | $57.28 |
| 2025-02-11 | BALAKRISHNAN BALU | Sell | 5.2K | $58.36 |
| 2025-02-11 | Bailey Doug | Sell | 698 | $57.28 |
| 2025-02-11 | Bailey Doug | Sell | 11K | $58.38 |
| 2025-02-11 | WALKER CLIFFORD | Sell | 865 | $57.28 |
| 2025-02-10 | Gupta Sunil | Disposition | 1.3K | $58.01 |
| 2025-02-10 | NAYYAR SANDEEP | Sell | 1.9K | $58.01 |
| 2025-02-10 | WALKER CLIFFORD | Sell | 1.1K | $58.01 |
| 2025-02-10 | Barsan Radu | Sell | 1.4K | $58.01 |
| 2025-02-10 | Bailey Doug | Sell | 1.1K | $58.01 |
| 2025-02-10 | Jain Gagan | Sell | 420 | $58.01 |
| 2025-02-10 | BALAKRISHNAN BALU | Sell | 6.0K | $58.26 |
| 2025-02-07 | NAYYAR SANDEEP | Grant | 4.1K | — |
| 2025-02-07 | Jain Gagan | Grant | 994 | — |
| 2025-02-07 | WALKER CLIFFORD | Grant | 2.7K | — |
| 2025-02-07 | Gupta Sunil | Grant | 3.4K | — |
| 2025-02-07 | Barsan Radu | Grant | 3.5K | — |
| 2025-02-07 | BALAKRISHNAN BALU | Grant | 11K | — |
| 2025-02-07 | Bailey Doug | Grant | 2.5K | — |
| 2025-02-04 | Gupta Sunil | Sell | 784 | $60.75 |
| 2025-02-04 | WALKER CLIFFORD | Sell | 672 | $60.75 |
| 2025-02-04 | WALKER CLIFFORD | Sell | 675 | $60.75 |
| 2025-02-04 | WALKER CLIFFORD | Sell | 1.1K | $60.75 |
| 2025-02-04 | NAYYAR SANDEEP | Sell | 1.3K | $60.75 |
| 2025-02-04 | NAYYAR SANDEEP | Sell | 1.2K | $60.75 |
| 2025-02-04 | NAYYAR SANDEEP | Sell | 2.7K | $60.75 |
| 2025-02-04 | Jain Gagan | Sell | 65 | $60.75 |
| 2025-02-04 | Jain Gagan | Sell | 97 | $60.75 |
| 2025-02-04 | Gupta Sunil | Sell | 675 | $60.75 |
| 2025-02-04 | Gupta Sunil | Sell | 1.5K | $60.75 |
| 2025-02-04 | Barsan Radu | Sell | 1.0K | $60.75 |
| 2025-02-04 | Barsan Radu | Sell | 1.1K | $60.75 |
| 2025-02-04 | Barsan Radu | Sell | 1.6K | $60.75 |
| 2025-02-04 | BALAKRISHNAN BALU | Sell | 3.1K | $60.64 |
| 2025-02-04 | BALAKRISHNAN BALU | Sell | 6.5K | $60.64 |
| 2025-02-04 | BALAKRISHNAN BALU | Sell | 2.8K | $60.64 |
| 2025-02-04 | Bailey Doug | Sell | 560 | $60.75 |
| 2025-02-04 | Bailey Doug | Sell | 579 | $60.75 |
| 2025-02-04 | Bailey Doug | Sell | 995 | $60.75 |
| 2025-01-28 | WALKER CLIFFORD | Grant | 14K | — |
| 2025-01-28 | NAYYAR SANDEEP | Grant | 30K | — |
| 2025-01-28 | Jain Gagan | Grant | 9.6K | — |
| 2025-01-28 | Gupta Sunil | Grant | 16K | — |
| 2025-01-28 | Barsan Radu | Grant | 18K | — |
| 2025-01-28 | BALAKRISHNAN BALU | Grant | 60K | — |
| 2025-01-28 | Bailey Doug | Grant | 12K | — |
All non-derivative Form 4 activity (SEC), newest first.
Notable events (8-K)
| Date | Items | |
|---|---|---|
| 2026-06-04 | Shareholder vote | filing ↗ |
| 2026-05-07 | ResultsExec/director changeExhibits | filing ↗ |
| 2026-02-05 | Material agreementResults2.05OtherExhibits | filing ↗ |
| 2026-01-30 | Exec/director change5.03Exhibits | filing ↗ |
| 2025-11-18 | Exec/director changeExhibits | filing ↗ |
| 2025-11-05 | ResultsExhibits | filing ↗ |
| 2025-09-22 | Exec/director changeExhibits | filing ↗ |
| 2025-08-06 | ResultsExhibits | filing ↗ |
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-06-04 | 2026-06-03 | 0001213900-26-065273 ↗ |
| 8-K | 2026-05-07 | 2026-05-04 | 0000833640-26-000076 ↗ |
| 10-Q | 2026-05-07 | 2026-03-31 | 0000833640-26-000078 ↗ |
| 10-K | 2026-02-06 | 2025-12-31 | 0000833640-26-000037 ↗ |
| 8-K | 2026-02-05 | 2026-02-01 | 0000833640-26-000028 ↗ |
| 8-K | 2026-01-30 | 2026-01-27 | 0000833640-26-000016 ↗ |
| 8-K | 2025-11-18 | 2025-11-14 | 0000833640-25-000199 ↗ |
| 10-Q | 2025-11-05 | 2025-09-30 | 0000833640-25-000190 ↗ |
| 8-K | 2025-11-05 | 2025-11-05 | 0000833640-25-000188 ↗ |
| 8-K | 2025-09-22 | 2025-09-16 | 0000833640-25-000174 ↗ |
| 10-Q | 2025-08-06 | 2025-06-30 | 0000833640-25-000157 ↗ |
| 8-K | 2025-08-06 | 2025-08-06 | 0000833640-25-000155 ↗ |