Exploring SiTime Corporation (SITM) Investor Profile: Who’s Buying and Why?

If you're looking at SiTime Corporation (SITM) and wondering who's been quietly accumulating shares, you aren't alone; the answer is mostly massive institutional money, which now controls over 84.31% of the stock, with giants like BlackRock, Inc. and Vanguard Group Inc. making big bets. This isn't a passive play, but a clear signal that the market believes in the company's pivot to high-performance timing solutions for the artificial intelligence (AI) and datacenter markets, especially as the stock trades around $326.94 per share as of early November 2025. The financials back this up: SiTime just reported Q3 2025 net revenue of $83.6 million, a 45% jump year-over-year, and management expects full 2025 revenue growth to defintely exceed 50%. Still, you should track the insider activity-executives sold approximately 44,867 shares, totaling about $12.46 million, in the last quarter, which is a significant data point to consider alongside the institutional accumulation. Do you know which specific funds are driving this accumulation and what their long-term thesis is?

Who Invests in SiTime Corporation (SITM) and Why?

You're looking at SiTime Corporation (SITM) and trying to figure out if the smart money agrees with your thesis. Simply put, this stock is dominated by big, institutional players who are betting heavily on its high-performance timing technology for the AI and data center boom. The vast majority of shares-nearly 84.31%-are held by institutions, signaling a strong, conviction-based investor base.

This isn't a retail-driven meme stock; it's a high-growth semiconductor play where the investment motivation is pure market disruption and revenue expansion, not dividends. The core strategy here is long-term growth investing, plain and simple.

Key Investor Types and Ownership Breakdown

The ownership profile of SiTime Corporation is typical for a high-growth, high-multiple technology company: heavy institutional control with a smaller, but still meaningful, retail float. Institutional investors, which include mutual funds, pension funds, and hedge funds, own the lion's share, holding approximately 84.31% of the stock.

This group includes giants like BlackRock, Inc., The Vanguard Group Inc., and Fidelity (Fmr Llc), which are often passive holders through index funds but also active managers seeking growth. The remaining approximately 15.69% is split between retail investors, other public companies (like MegaChips Corp, the former parent), and corporate insiders.

Here's the quick math on the major investor categories:

• Institutional Ownership: ~84.31%
• Corporate Insider Ownership: ~2.30% (though other figures suggest a higher overall insider stake)
• Retail/Public Ownership: ~13.39% (the remaining float)

Hedge fund activity has been notably bullish, with firms like Wellington Management Group LLP boosting their holdings by a significant 36.8% in the third quarter of 2025. This is a strong vote of confidence from sophisticated, active money managers.

Investment Motivations: Why the Big Money is Buying

The primary attraction to SiTime Corporation is its market position as the 'Precision Timing company,' which is essential for next-generation computing, especially in artificial intelligence (AI) and data centers. They are displacing traditional quartz-based timing components with Micro-Electro-Mechanical Systems (MEMS) technology, which offers higher performance and better reliability. Mission Statement, Vision, & Core Values of SiTime Corporation (SITM).

The numbers from the 2025 fiscal year tell the story of a company hitting an inflection point:

• Hyper-Growth: Management expects 2025 year-over-year revenue growth to exceed 50%.
• AI/Data Center Demand: Revenue from the Communications, Enterprise, and Data Center (CED) market grew a massive 137% year-over-year in Q2 2025, representing 51% of Q3 revenue.
• Financial Strength: The company ended Q3 2025 with a robust cash and short-term investments balance of $809.6 million, giving it a massive war chest for R&D and market expansion.
• Profitability Trajectory: While GAAP (Generally Accepted Accounting Principles) results show a net loss of $8.0 million in Q3 2025, the company reported a positive non-GAAP net income of $23.4 million, indicating strong underlying operational profitability.

The company does not pay a dividend, which is typical for a growth stock where all available capital is reinvested to fuel the rapid expansion into new markets, such as the $4 billion resonator market they entered with the Titan Platform™ in September 2025.

Typical Investment Strategies in Play

Given the company's profile, the dominant strategy is Growth Investing. Investors are willing to accept a high valuation multiple today because they believe in the long-term compounding of revenue and earnings driven by the shift to MEMS timing solutions in high-value markets like 5G, AI, and automotive.

The large institutional ownership suggests a significant portion of the stock is held by Long-Term Holders. These are the index funds and the active growth funds that buy and hold for years, focusing on the multi-year secular trend of silicon timing adoption. This creates a stable ownership base.

However, you also see evidence of Short-Term Trading and profit-taking. For instance, corporate insiders sold a total of 44,867 shares, valued at approximately $12.46 million, over the last quarter of 2025. This is normal diversification for executives, but it's a reminder that even high-conviction stocks see selling after a strong run-up.

The table below summarizes the strategies and their rationale:

What this estimate hides is the potential for volatility; the stock is priced for perfection, so any slowdown in the 137% CED growth could cause a sharp correction. Your action should be clear: use a discounted cash flow (DCF) model to see if the stock's current price of ~$270.30 per share as of November 2025 justifies the aggressive growth forecasts.

Institutional Ownership and Major Shareholders of SiTime Corporation (SITM)

You are looking at SiTime Corporation (SITM), a leader in the silicon timing space, and the first thing that jumps out is the sheer concentration of institutional money. This isn't a stock driven by retail chatter; it's a conviction play for major funds. As of the end of the third fiscal quarter of 2025 (Q3 2025), institutional investors held approximately 85% of the company's total shares outstanding, representing roughly 23.7 million shares. That's a massive stake, and it tells you the long-term story is being written by the big players.

The total value of these institutional holdings stood at an estimated $6.459 billion as of September 30, 2025. When a company's ownership is this consolidated, the stock's movement is less about day-to-day news and more about the strategic shifts of a few giants. It's defintely something to watch closely.

Top Institutional Investors and Their Shareholdings

The top shareholders in SiTime Corporation are exactly the names you'd expect to see holding significant positions in a high-growth semiconductor company. These are funds that tend to buy and hold, providing a bedrock of stability for the stock. Blackrock, Inc., Vanguard Group Inc, and Fmr Llc (Fidelity) lead the pack, which is common given their massive index and mutual fund operations.

Here is the quick math on the top three holders as of the September 30, 2025, reporting date:

The table shows that the passive giants-Blackrock and Vanguard-were net buyers, increasing their stakes by 1.931% and 4.669%, respectively, in the third quarter of 2025. This accumulation is a positive signal, suggesting continued inclusion in their index-tracking funds and a favorable long-term view.

Recent Shifts: Who's Buying and Who's Selling?

Looking at the recent activity, the institutional landscape for SiTime Corporation (SITM) is a mixed bag, which is normal for a growth stock navigating market cycles. Overall, there was a net positive accumulation, with 214 institutional holders increasing their positions versus 144 decreasing their stakes in Q3 2025. That's a healthy ratio of buyers to sellers.

The most notable moves, however, came from the active managers. Fmr Llc, for instance, significantly reduced its position by 573,400 shares, a -16.54% cut. Similarly, Franklin Resources Inc. trimmed its stake by over 16%. This suggests some active funds are taking profits or rebalancing away from the stock, perhaps due to valuation concerns after a strong run.

But on the flip side, you have aggressive accumulation from others. Wellington Management Group Llp, for example, boosted its holding by a substantial 36.805%, acquiring an additional 144,671 shares. This tells you that while some are stepping back, others see the recent pullback or consolidation as a clear buying opportunity, likely betting on the company's expansion into the $4 billion resonator market with its new Titan Platform™, announced in September 2025.

• Passive funds (Blackrock, Vanguard) are accumulating shares.
• Active funds show divergence, with significant profit-taking and aggressive new buying.
• Net institutional activity shows more holders increasing than decreasing positions.

The Impact of Institutional Investors on SITM's Strategy

Institutional investors don't just affect the stock price; they are a critical force in a company's corporate governance (the system of rules, practices, and processes by which a company is directed and controlled). With over 85% ownership, their voice is the one that matters most. They provide a crucial layer of stock price stability, as their trades are often large and less frequent than retail investors, but their influence extends into the boardroom.

When you have firms like Blackrock and Vanguard as major holders, they push for long-term, sustainable growth and robust environmental, social, and governance (ESG) standards. They also ensure management is focused on maximizing shareholder value over the long haul. A clear action point for management is to maintain a transparent dialogue with these major holders, especially following key events like the October 2025 board change that brought in Ganesh Moorthy, an executive with a background in scaling multi-billion-dollar organizations. His expertise is a direct nod to the growth expectations of the institutional base.

The high institutional ownership also means that any major selling event could trigger a sharp, albeit short-lived, drop in price due to the sheer volume of shares involved. Conversely, sustained institutional buying provides a strong floor for the stock. For a deeper dive into the company's foundation, you should read SiTime Corporation (SITM): History, Ownership, Mission, How It Works & Makes Money.

Finance: Track the top 10 institutional holders' 13F filings for Q4 2025 to gauge the continued conviction in the growth story.

Key Investors and Their Impact on SiTime Corporation (SITM)

You need to know who is really calling the shots at SiTime Corporation (SITM) because a stock's trajectory is defintely tied to the conviction of its largest owners. The key takeaway here is that SiTime is overwhelmingly an institutional favorite, with major passive and active funds holding the vast majority of the equity, which acts as a strong, stabilizing anchor for the stock.

As of late 2025, institutional investors-meaning large funds, pension managers, and endowments-collectively own an estimated 84.31% to 92.29% of the company's stock, holding a total institutional value of approximately $6.459 billion. This is a high concentration. This high level of institutional ownership means their collective buying and selling drives the stock price more than any individual retail investor.

The total institutional value of holdings is $6,459 million.

The Big Three: BlackRock, Vanguard, and FMR

The top shareholders are the usual suspects in the institutional world, but their sheer size here is what matters. These are primarily passive investors, meaning they generally follow an index and aren't looking to shake up management, but their votes on proxy matters are massive. Their presence lends significant credibility and liquidity to SiTime Corporation's stock.

• BlackRock, Inc.: Held 3,373,832 shares as of September 30, 2025, showing a modest increase of 1.931% in their position during the quarter.
• Fmr Llc: Held 2,893,259 shares as of September 30, 2025, but notably reduced their position by 16.54%.
• Vanguard Group Inc: Held 2,764,066 shares as of September 30, 2025, increasing their stake by 4.669%.

Here's the quick math on the value of the top three holdings based on the September 30, 2025, share counts and the November 19, 2025, share price of $270.30/share:

The influence of these giants is subtle but crucial. They primarily file a Schedule 13G, indicating a passive stake, but their sheer size means they are essentially permanent holders, reducing the available float (the number of shares available for trading) and acting as a backstop against extreme volatility. Their focus is long-term governance, especially around executive compensation and board structure.

Recent Investor Moves and What They Signal

In the near term, you want to watch the active managers and hedge funds, as their trading signals a view on the company's immediate prospects. The third quarter of 2025 saw some significant accumulation, suggesting confidence in SiTime Corporation's growth trajectory following its strong Q3 performance, where it reported $83.57 million in revenue.

• Wellington Management Group LLP significantly boosted its holdings in Q3 2025, acquiring an additional 144,671 shares, representing a 36.8% increase in their position. This is a strong vote of confidence from a respected active manager.
• Intech Investment Management LLC also increased its stake by an impressive 241.3% in the second quarter of 2025, acquiring 20,078 additional shares.

This accumulation by active funds maps directly to the company's positive earnings surprise in Q3 2025, where it posted $0.87 EPS, topping analyst consensus estimates of $0.71. When active funds increase their stake so sharply, it signals they see the company's revenue growth-up 44.8% year-over-year-as sustainable.

However, it's not all buying. We also saw insider selling, which is a near-term risk to watch. The CEO, Rajesh Vashist, sold 10,000 shares on November 6, 2025, for a total value of $3,290,000.00. While insider selling can be for personal reasons, a sale of this size often raises an eyebrow and suggests a key executive is taking some chips off the table, even as the stock price has risen significantly over the past year. This is why you need to dig deeper into the company's fundamentals, which you can do here: Breaking Down SiTime Corporation (SITM) Financial Health: Key Insights for Investors.

Market Impact and Investor Sentiment

You're looking at SiTime Corporation (SITM) right now and the investor profile is a fascinating mix of strong long-term conviction and near-term market choppiness. The overall sentiment from major shareholders is positive, driven by SiTime's dominant position in high-growth markets like Artificial Intelligence (AI) and data centers, but a weak near-term signal suggests some caution is warranted.

The core of this positive outlook is simple: the company is delivering on its growth story. In the third quarter of 2025, SiTime reported net revenue of $83.6 million, a significant jump of 45% year-over-year. That's a powerful signal to the market. Management is also expecting 2025 year-over-year revenue growth to exceed 50%.

Here's the quick math on where the growth is coming from: the Communications, Enterprise, and Data Center (CED) segment surged 115% year-over-year in Q3 2025 to bring in $42.1 million, making up over half of the revenue. That AI-fueled demand is defintely the main driver. Institutional ownership is exceptionally high at 92.29%, which tells you that big money-firms like Vanguard Fiduciary Trust Co. and Invesco Advisers, Inc.-is deeply committed to the long-term narrative of SiTime's precision timing solutions.

Recent Market Reactions and Ownership Moves

The stock market's reaction to SiTime's performance in late 2025 has been a bit of a tug-of-war. After the strong Q3 2025 earnings report on November 5, 2025, the stock initially reacted well, but we've seen some volatility. For example, the stock traded up 7.6% around November 20, 2025, but it also lost about 6% in the five trading days leading up to November 21, 2025. This kind of back-and-forth suggests that while the fundamentals are strong, the stock's valuation is a major point of contention.

One factor that adds a layer of complexity is the insider activity. Over a three-month period, there were 18 insider selling transactions with no insider buying. For instance, CEO Rajesh Vashist sold 10,000 shares for over $3.29 million on November 6, 2025. While this can be for personal reasons, a wave of selling from executives like the CFO and CEO during a period of strong operational performance can introduce short-term uncertainty into the investment narrative. Still, the company did successfully complete a follow-on public offering in June 2025, raising approximately $387.4 million in net proceeds by selling 2,012,500 shares at $200.00 per share. That capital infusion gives them a strong balance sheet, ending Q3 2025 with $809.6 million in cash and short-term investments.

• Q3 2025 Non-GAAP Net Income: $23.4 million
• Q4 2025 Revenue Guidance: $100 million to $103 million
• Institutional Ownership: 92.29%

Analyst Perspectives: The Price Target Consensus

Wall Street analysts are generally bullish, but they're also realistic about the premium valuation. The consensus analyst rating for SiTime Corporation is a 'Moderate Buy' or 'Hold,' with a clear upward trend in price targets following the Q3 results. Analysts are betting on the company's ability to capitalize on its new product platforms, like the Titan™ resonator, which targets a new $4 billion market.

The average 12-month price target from a group of Wall Street analysts sits between $329.17 and $360.00. UBS Group, for example, upped their price objective to a high of $375.00 on November 6, 2025. To be fair, not everyone is in the same boat; the lowest forecast is $260.00, reflecting the risk of a high Price-to-Sales (P/S) ratio of 23.4x, which is well above the US Semiconductor industry average of 4.2x. What this estimate hides is the need for SiTime to maintain its current breakneck growth pace to justify that multiple.

The bullish case hinges on the non-GAAP profitability, which saw Q3 2025 non-GAAP earnings per diluted share reach $0.87. They are guiding for Q4 non-GAAP EPS in the range of $1.16 to $1.21 per share. This operating leverage is what gives the bulls confidence. If you want a deeper dive into the foundation of the business, you can check out SiTime Corporation (SITM): History, Ownership, Mission, How It Works & Makes Money.