Nicholas Brathwaite is Director at POWER INTEGRATIONS INC (POWI). They have made 25 open-market trades across 3 companies since 2006, most recently 2026-05-27.
CIK 0001182401
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $75K since 2008, against 24 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| FLEX | 160,085 | $14.5M |
| POWI | 22,226 | $990K |
| TSRA | 13,797 | $616K |
| IPHI | 1,478 | $255K |
| PHTN | 833 | — |
| Total | $16.3M |
Shares reported on the most recent Form 4, priced at the 2026-05-29 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| POWI | SELL | 2026-05-27 | 2026-05-29 | $86.62 | $150K | -11.3% | -6.0% | -34.2% |
| POWI | SELL | 2026-05-26 | 2026-05-28 | $82.71 | $550K | -13.6% | -8.7% | -36.6% |
| POWI | SELL | 2026-05-13 | 2026-05-15 | $72.41 | $499K | +18.0% | +12.9% | -15.6% |
| POWI | SELL | 2024-02-20 | 2024-02-22 | $72.25 | $578K | -0.9% | -3.0% | +8.4% |
| POWI | SELL | 2023-08-08 | 2023-08-10 | $84.41 | $1.0M | -1.4% | -5.9% | -16.2% |
| POWI | SELL | 2022-08-11 | 2022-08-16 | $80.55 | $1.6M | -4.5% | -15.4% | -4.1% |
| POWI | SELL | 2020-12-01 | 2020-12-03 | $72.71 | $1.2M | +5.1% | +11.6% | +17.5% |
| POWI | SELL | 2020-05-12 | 2020-05-14 | $107.24 | $858K | +12.6% | +16.2% | +18.7% |
| IPHI | SELL | 2019-11-18 | 2019-11-20 | $72.89 | $400K | -2.8% | +5.6% | +17.9% |
| POWI | SELL | 2019-10-30 | 2019-11-01 | $92.12 | $392K | +0.1% | -6.1% | +3.5% |
| POWI | SELL | 2018-11-01 | 2018-11-05 | $57.24 | $458K | +3.4% | +4.1% | +16.7% |
| POWI | SELL | 2018-06-13 | 2018-06-14 | $80.00 | $333K | -2.5% | -3.4% | -16.2% |
| POWI | SELL | 2017-07-19 | 2017-07-21 | $80.00 | $320K | -14.0% | -15.8% | -10.6% |
| POWI | SELL | 2017-06-26 | 2017-06-28 | $74.33 | $446K | -2.3% | -4.3% | -7.2% |
| POWI | SELL | 2016-05-24 | 2016-05-25 | $50.00 | $200K | +4.4% | +2.4% | +18.6% |
| POWI | SELL | 2016-03-07 | 2016-03-08 | $48.23 | $289K | +2.9% | -2.3% | +5.1% |
| POWI | SELL · 10b5-1 | 2015-03-20 | 2015-03-24 | $57.52 | $192K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2015-03-05 | 2015-03-09 | $56.50 | $188K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2015-03-02 | 2015-03-03 | $56.00 | $187K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2014-08-04 | 2014-08-05 | $55.03 | $275K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2014-02-19 | 2014-02-20 | $59.48 | $556K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2012-02-28 | 2012-02-29 | $37.82 | $605K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2010-11-30 | 2010-12-01 | $39.68 | $60K | -9.0% | +0.6% | +0.6% |
| POWI | BUY | 2008-11-03 | 2008-11-04 | $21.00 | $75K | -9.0% | +0.6% | +0.6% |
| FLEX | SELL | 2007-04-30 | 2007-05-02 | $11.43 | $435K | -11.8% | +0.5% | +0.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.