--- title: Balu Balakrishnan POWI Sale Nears $24M type: news slug: balu-balakrishnan-powi-may-2026-sale-context canonical_url: https://13finsight.com/news/balu-balakrishnan-powi-may-2026-sale-context published_at: 2026-06-18T18:34:48.459Z updated_at: 2026-06-18T18:34:50.938Z author: Alex Rivera author_title: Breaking News Editor author_url: https://13finsight.com/authors/alex-rivera word_count: 1628 locale: en source: 13F Insight --- # Balu Balakrishnan POWI Sale Nears $24M > Power Integrations founder-era leader Balu Balakrishnan sold $24.2 million of POWI shares in May, just as investors were repricing the high-voltage semiconductor story around industrial, EV and data-center demand. Balu Balakrishnan did not just file another routine Form 4. The Power Integrations founder-era leader reported a fresh round of open-market POWI sales in late May, with the visible May 21, May 26 and May 28 rows adding up to roughly $24.2 million of stock. The last filing in that run, accession 0000833640-26-000100, shows two May 28 sale blocks totaling 124,287 shares at weighted average prices of $86.252 and $87.0495. The timing is the story. Power Integrations had just pushed investors back toward a higher-growth narrative: high-voltage power conversion, industrial demand, EV content, grid infrastructure and data-center power architecture. The May sales therefore land at the intersection of an insider liquidity event, a leadership transition, and a stock that had moved sharply above the levels where Balakrishnan was selling in February. The ownership check matters before the headline gets too hot. The latest Form 4 reported 279,516 shares owned after the May 28 transactions, with ownership listed indirectly by trust. The filing is Table I common stock; the recent documents reviewed for this article did not show a Table II derivative position that would change the basic common-stock read, and Balakrishnan was not marked as a ten percent owner. Separately, 13D/G filings around POWI show institutional beneficial owners, not a same-name Balakrishnan control filing. That means the article can say the reported Form 4 common-stock position was reduced, but it should not turn the sales into a total-company exit claim. The filing trail: $24.2 million in May, no purchase offset The May sequence is compact and price-sensitive. On May 21, Balakrishnan sold 53,880 shares at a weighted average price of $70.7133, worth about $3.8 million. On May 26, he sold 47,863 shares at $80.9264 and 70,710 shares at $82.2629, a combined value of about $9.7 million. On May 28, he sold 95,287 shares at $86.252 and 29,000 shares at $87.0495, another $10.7 million. The recent S/P/M review showed sales only for POWI, not cross-company transactions, so this is a clean Power Integrations insider story rather than the kind of board-member mismatch that can invalidate an insider-news angle. The transaction code is also important. These were S-code open-market sales. They were not M-code option exercises, not F-code tax withholdings, and not A-code compensation awards. The two late-May SEC XML filings reviewed for this article list aff10b5One as 0 and do not include a plan-adoption footnote. That does not prove motive, but it does remove the easiest explanation used in many insider-sale stories: a prearranged Rule 10b5-1 checkbox. The cleaner framing is that Balakrishnan reported open-market trust sales into a stronger POWI tape after a company update that gave investors new end-market language to price. For readers tracking the full pattern, Balakrishnan's insider profile is the better base layer than a single filing. 13F Insight shows 1,980 transactions and roughly $179.5 million of reported career sale value across the captured Form 4 history. That long history keeps the May filing from being interpreted as a one-off emotional signal, but the size and timing make it more than clerical noise. Why POWI's operating backdrop made the sale more notable Power Integrations' May 7 Q1 2026 release gave the market several concrete hooks. Revenue was $108.3 million, up 5% sequentially and 3% year over year. Non-GAAP EPS was $0.25. Management guided Q2 revenue to $115 million to $120 million, and the industrial business grew 23% year over year. CEO Jen Lloyd tied the industrial momentum to renewable energy, battery storage, home automation and automotive, then added that EVs and AI data centers increase pressure on the power grid and can pull demand toward the company's PowiGaN and gate-driver technologies. That matters because POWI is not a generic semiconductor ticker. The company's public positioning is high-voltage power conversion, and the market is trying to decide how much of the AI data-center buildout, EV electrification cycle and grid-infrastructure upgrade path can flow through smaller specialized power suppliers. A Q1 earnings-call transcript amplified the same theme: auxiliary power wins for data centers, engagement around future 800-volt DC architectures, and high-power industrial demand tied to renewables, DC transmission and power quality. Against that backdrop, the sales occurred after a visible price reset. Public daily price history shows POWI closing around $70.48 on May 21, $84.09 on May 26 and $87.07 on May 28. In plain English: the biggest May Form 4 blocks came as the stock traded far above the February sale prices in the mid-$40s and after investors had a fresh Q1 demand narrative to debate. That is why the filing deserves context rather than a mechanical "insider sold stock" label. Leadership transition makes Balakrishnan different from a routine director Balakrishnan's role gives the filing another layer. Power Integrations announced in 2025 that he would retire as CEO after serving in that role since 2002 and after being with the company since 1989. The company later named Jennifer Lloyd as the next CEO and described Balakrishnan's transition to executive chairman, with consulting support tied to patent litigation, R&D and innovation. In other words, this is not an outside director trimming an unfamiliar position. This is a long-tenured architect of the company selling into the market during the first year of a handoff. That does not make the sale bearish by itself. Long-tenured executives often diversify after decades of concentrated equity exposure, and a trust sale can reflect estate, liquidity or portfolio planning. But it does change the question investors should ask. The key question is whether the transaction is consistent with a long-running monetization pattern while the new leadership team tries to convert high-voltage technology claims into revenue growth, or whether the pace of selling becomes more meaningful if POWI's operating momentum stalls. The best way to follow that distinction is not to overread a single Form 4. Watch the Balakrishnan transaction history alongside POWI's revenue guide, industrial mix and data-center commentary. If new filings keep appearing at similar prices without a 10b5-1 marker, that would make the cadence more relevant. If the filings pause while the company executes against the Q2 guide, the May sales look more like opportunistic diversification after a strong move. What the holder base says after the insider supply Institutional ownership does not erase an insider sale, but it helps calibrate market absorption. 13F Insight's POWI holder view shows 328 current holders. BlackRock was listed with 8,521,749 POWI shares in the latest holder snapshot. Vanguard Portfolio Management, classified as passive index exposure on the platform, held 4,975,859 shares. Neuberger Berman held 3,933,099 shares, Wellington Management held 3,356,153 shares, and State Street held 3,077,843 shares. That mix is useful because some of the largest names are index or broad-market holders, while others are active managers with more discretion. Vanguard Capital Management also appeared among the larger POWI holders, and William Blair Investment Management was another notable holder in the snapshot. The takeaway is not that these firms endorsed Balakrishnan's sale. It is that the float has a deep institutional audience even as a founder-era insider reduced his trust-held common-stock position. For a retail investor, that creates a cleaner checklist. First, separate insider motive from transaction code: these were S-code sales, not tax withholding or option exercise noise. Second, separate direct Form 4 ownership from broader beneficial ownership: the latest Form 4 says 279,516 shares remained after the May 28 sale, held by trust. Third, separate company narrative from stock narrative: Power Integrations is pitching industrial, EV, grid and data-center power demand, while the stock already repriced enough for a large insider sale to happen near the high-$80s. What to watch next The next hard anchor is the company's own Q2 guidance range of $115 million to $120 million in revenue. If Power Integrations delivers against that range and keeps industrial demand strong, the May insider sale will probably be read as a founder-era monetization event against a healthier tape. If the Q2 setup weakens, the fact that a long-time leader sold more than $24 million in May will look more uncomfortable in hindsight. The second anchor is future Form 4 language. A future filing that checks the Rule 10b5-1 box or discloses a plan-adoption date would move the interpretation toward scheduled liquidity. A future filing with no plan marker, at similar or larger dollar value, would make the open-market cadence more relevant. That is why the correct reaction is neither alarm nor dismissal; it is to keep the transaction code, price, ownership line and company demand narrative in the same frame. FAQ Why did Balu Balakrishnan sell POWI shares in May 2026? Balu Balakrishnan's May 2026 Form 4s report open-market sales, not purchases or option exercises. The filings reviewed here do not mark the transactions as Rule 10b5-1 plan trades, so the safer read is timing plus context: sales followed a sharp POWI rebound and a Q1 update that emphasized industrial, EV and data-center demand. How much POWI stock did Balu Balakrishnan sell? The recent May Form 4 rows show about $24.2 million of POWI sales across May 21, May 26 and May 28, 2026. His 13F Insight profile shows $179.5 million of career reported sale value across the full Form 4 history captured on the platform. How many POWI shares did Balakrishnan report after the latest sale? The May 28, 2026 Form 4 reported 279,516 shares owned after the final listed sale, held indirectly by a trust. That is the Form 4 common-stock figure, not a claim that it captures every possible economic exposure outside the filing. Which institutional holders matter for POWI after the sale? POWI's current holder base includes BlackRock, Vanguard Portfolio Management, Neuberger Berman, Wellington Management and State Street among the largest reported holders on 13F Insight. That holder map is useful because Balakrishnan's Form 4 shows insider supply while the stock still has broad institutional ownership. ## FAQ ### Why did Balu Balakrishnan sell POWI shares in May 2026? Balu Balakrishnan's May 2026 Form 4s report open-market sales, not purchases or option exercises. The filings do not mark the transactions as Rule 10b5-1 plan trades, so the safer read is timing plus context: sales followed a sharp POWI rebound and a Q1 update that emphasized industrial, EV and data-center demand. ### How much POWI stock did Balu Balakrishnan sell? The recent May Form 4 rows show about $24.2 million of POWI sales across May 21, May 26 and May 28, 2026. His 13F Insight profile shows $179.5 million of career reported sale value across the full Form 4 history captured on the platform. ### How many POWI shares did Balakrishnan report after the latest sale? The May 28, 2026 Form 4 reported 279,516 shares owned after the final listed sale, held indirectly by a trust. That is the Form 4 common-stock figure, not a claim that it captures every possible economic exposure outside the filing. ### Which institutional holders matter for POWI after the sale? POWI's current holder base includes BlackRock, Vanguard Portfolio Management, Neuberger Berman, Wellington Management and State Street among the largest reported holders on 13F Insight. That holder map is useful because Balakrishnan's Form 4 shows insider supply while the stock still has broad institutional ownership. --- Source: 13F Insight — https://13finsight.com/news/balu-balakrishnan-powi-may-2026-sale-context Author: Alex Rivera — https://13finsight.com/authors/alex-rivera Last updated: 2026-06-18T18:34:50.938Z