CIK: 0000887818
Total reported value
$10.6B
Reporting period: 2026-06-30 · Number of holdings: 205
FACTORY MUTUAL INSURANCE CO disclosed 205 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $10.6B and a quarterly turnover rate of 29.7%.
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Factory Mutual Insurance Co's disclosed holdings carry a Herfindahl concentration index of 0.019 — mathematically equivalent to about 53 equally-sized positions, well below its 205 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.70), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
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Add DFCF
+122.4% $234.5M
Sold out VGK
Add MU
-11.6% $116.7M
New buy VOO
New buy RSP
Trim DFAE
-70.0% -$67.3M
Showing top 200 holdings (of 205 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 5.33% | -0.37% | -2.39% | |
| 2 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.97% | +0.13% | -0.26% | |
| 3 | AAPL | Apple Inc | Stock-Tech | 4.67% | -0.19% | +1.06% | |
| 4 | DFCF | Dimensional Core Fixed Inc | ETF-Other | 4.00% | +1.84% | +122.41% | |
| 5 | JCPB | Jpmorgan Core Plus Bond ETF | ETF-Other | 3.52% | +0.42% | +36.55% | |
| 6 | MSFT | Microsoft CORP | Stock-Tech | 3.24% | -0.81% | -5.01% | |
| 7 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 3.10% | -0.12% | +0.67% | |
| 8 | AGG | Ishares Core U.s. Aggregate | ETF-Other | 2.74% | +0.70% | +61.33% | |
| 9 | AVGO | Broadcom Inc | Stock-Tech | 2.56% | -0.05% | -3.94% | |
| 10 | XLE | Ss Energy Select Sector | ETF-Other | 2.22% | +0.37% | +65.86% | |
| 11 | KLAC | Kla CORP | Stock-Tech | 1.68% | +0.62% | +827.57% | |
| 12 | DFAX | Dimensional World Ex US Core | ETF-Other | 1.66% | -0.18% | — | |
| 13 | MU | Micron Technology Inc | Stock-Tech | 1.64% | +0.99% | -11.56% | |
| 14 | JPM | Jpmorgan Chase & Co | Stock-Financials | 1.59% | -0.13% | -0.51% | |
| 15 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.50% | -0.34% | -0.56% | |
| 16 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 1.42% | +0.17% | -3.59% | |
| 17 | XLU | St Sr Utl Sl Se Spdr Etf-usd | ETF-Other | 1.36% | -0.30% | -0.86% | |
| 18 | JIRE | Jpmorgan Int Res Enh Eqty | ETF-Other | 1.30% | -0.12% | — | |
| 19 | V | Visa Inc-class A Shares | Stock-Financials | 1.20% | -0.01% | +4.54% | |
| 20 | AMD | Advanced Micro Devices | Stock-Tech | 1.16% | +0.79% | +31.35% | |
| 21 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 1.11% | -0.17% | -0.68% | |
| 22 | TSLA | Tesla Inc | Stock-Consumer Disc | 1.06% | -0.07% | -0.69% | |
| 23 | ASML | ASML Holding N.V. | Stock-Tech | 1.06% | +0.21% | -1.29% | |
| 24 | UNH | Unitedhealth Group Inc | Stock-Healthcare | 1.02% | +0.22% | -0.42% | |
| 25 | CDNS | Cadence Design Sys Inc | Stock-Tech | 0.95% | +0.04% | -7.64% | |
| 26 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.94% | +0.94% | NEW | |
| 27 | HYDB | Ishares High Yield Systemati | ETF-High Yield | 0.93% | -0.18% | — | |
| 28 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.91% | +0.07% | -0.18% | |
| 29 | RSP | Invesco S&p 500 Equal Weight | ETF-Large Cap & Growth | 0.90% | +0.90% | NEW | |
| 30 | IWR | Ishares Russell Mid-cap ETF | ETF-Other | 0.79% | -0.04% | — | |
| 31 | APH | Amphenol Corp-cl A | Stock-Tech | 0.68% | +0.08% | -2.57% | |
| 32 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.67% | -0.21% | -11.56% | |
| 33 | PM | Philip Morris International | Stock-Consumer Staples | 0.67% | -0.13% | -8.44% | |
| 34 | AME | Ametek Inc | Stock-Industrials | 0.64% | +0.12% | +29.77% | |
| 35 | CAT | Caterpillar Inc | Stock-Industrials | 0.64% | +0.13% | -0.16% | |
| 36 | XOM | Exxon Mobil CORP | Stock-Energy | 0.63% | -0.67% | -28.30% | |
| 37 | XLY | Ss Consumer Disc Select Sect | ETF-Other | 0.63% | -0.07% | — | |
| 38 | MS | Morgan Stanley | Stock-Financials | 0.62% | +0.01% | -4.08% | |
| 39 | ETN | Eaton Corporation plc | Stock-Industrials | 0.61% | +0.05% | +8.42% | |
| 40 | PFGC | Performance Food Group Co | Stock-Consumer Staples | 0.60% | +0.05% | — | |
| 41 | CRWD | Crowdstrike Holdings Inc - A | Stock-Tech | 0.59% | +0.18% | -12.03% | |
| 42 | WMT | Walmart Inc | Stock-Consumer Staples | 0.59% | -0.26% | -9.22% | |
| 43 | GLD | Spdr Gold Shares | ETF-Commodities | 0.58% | -0.24% | — | |
| 44 | XLI | Ss Industrial Select Sector | ETF-Other | 0.58% | -0.23% | -25.01% | |
| 45 | MRVL | Marvell Technology Inc | Stock-Tech | 0.55% | +0.41% | +55.52% | |
| 46 | KO | Coca-cola Co/the | Stock-Consumer Staples | 0.55% | -0.07% | -0.70% | |
| 47 | DDOG | Datadog Inc - Class A | Stock-Tech | 0.55% | +0.16% | -22.62% | |
| 48 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 0.54% | -0.11% | -0.69% | |
| 49 | UNP | Union Pacific CORP | Stock-Industrials | 0.53% | -0.04% | -0.93% | |
| 50 | ANET | Arista Networks Inc | Stock-Tech | 0.52% | +0.06% | -2.90% |
Performance for Q3 2026
+1.9%
Performance Last 4 Quarters
+20.6%
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 205 | $10.6B | 30 | ||
| 2026 Q1 | 196 | $8.9B | 24 | ||
| 2025 Q4 | 196 | $9.9B | 18 | ||
| 2025 Q3 | 195 | $10.3B | 34 | ||
| 2025 Q2 | 162 | $9.1B | 0 | ||
| 2025 Q1 | 167 | $8.6B | 100 | ||
| 2024 Q4 | 172 | $9.2B | 0 | ||
| 2024 Q3 | 173 | $9.7B | 0 | ||
| 2024 Q2 | 170 | $8.8B | 0 | ||
| 2024 Q1 | 169 | $8.7B | 0 | ||
| 2023 Q4 | 162 | $8.1B | 0 | ||
| 2023 Q3 | 156 | $7.2B | 0 | ||
| 2023 Q2 | 142 | $6.8B | 0 | ||
| 2023 Q1 | 147 | $6.4B | 0 | ||
| 2022 Q4 | 146 | $6.6B | 0 | ||
| 2022 Q3 | 144 | $6.1B | 0 | ||
| 2022 Q2 | 144 | $6.1B | 0 | ||
| 2022 Q1 | 136 | $7.4B | 0 | ||
| 2021 Q4 | 133 | $6.9B | 0 | ||
| 2021 Q3 | 129 | $8.0B | 0 | ||
| 2021 Q2 | 126 | $8.2B | 100 | ||
| 2021 Q1 | 130 | $7.8B | 16 | ||
| 2020 Q4 | 128 | $7.4B | 25 | ||
| 2020 Q3 | 106 | $6.2B | 12 | ||
| 2020 Q2 | 109 | $5.8B | 24 | ||
| 2020 Q1 | 113 | $5.3B | 30 | ||
| 2019 Q4 | 117 | $6.8B | 13 | ||
| 2019 Q3 | 116 | $6.5B | 31 | ||
| 2019 Q2 | 130 | $8.4B | 20 | ||
| 2019 Q1 | 127 | $8.5B | 23 | ||
| 2018 Q4 | 127 | $7.8B | 25 | ||
| 2018 Q3 | 138 | $9.6B | 15 | ||
| 2018 Q2 | 158 | $9.3B | 14 | ||
| 2018 Q1 | 162 | $9.1B | 15 | ||
| 2017 Q4 | 166 | $9.6B | 10 | ||
| 2017 Q3 | 166 | $9.1B | 10 | ||
| 2017 Q2 | 165 | $8.6B | 8 | ||
| 2017 Q1 | 166 | $8.4B | 12 | ||
| 2016 Q4 | 176 | $8.4B | 13 | ||
| 2016 Q3 | 177 | $8.1B | 14 | ||
| 2016 Q2 | 176 | $7.6B | 15 | ||
| 2016 Q1 | 186 | $7.7B | 18 | ||
| 2015 Q4 | 182 | $7.4B | 14 | ||
| 2015 Q3 | 193 | $7.3B | 14 | ||
| 2015 Q2 | 189 | $7.7B | 11 | ||
| 2015 Q1 | 185 | $7.6B | 16 | ||
| 2014 Q4 | 180 | $7.4B | 14 | ||
| 2014 Q3 | 179 | $7.2B | 11 | ||
| 2014 Q2 | 174 | $7.3B | 14 | ||
| 2014 Q1 | 172 | $6.9B | 11 | ||
| 2013 Q4 | 165 | $6.8B | 11 | ||
| 2013 Q3 | 165 | $6.3B | 9 | ||
| 2013 Q2 | 162 | $6.1B | — |
Factory Mutual Insurance Co's most significant position changes for 2026-06-30: New buy: Vanguard S&p 500 ETF (VOO); New buy: Invesco S&p 500 Equal Weight (RSP); Sold out: Vanguard Ftse Europe ETF (VGK); New buy: Ishares Core Intl Stock ETF (IXUS); New buy: Ss Materials Select Sector (XLB).
Showing top 200 changes by size (of 211 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | DFCF | Dimensional Core Fixed Inc | +1.8% | +122.41% | Add |
| 2 | MU | Micron Technology Inc | +1% | -11.56% | Trim |
| 3 | VOO | Vanguard S&p 500 ETF | +0.9% | NEW | New buy |
| 4 | RSP | Invesco S&p 500 Equal Weight | +0.9% | NEW | New buy |
| 5 | AMD | Advanced Micro Devices | +0.8% | +31.35% | Add |
| 6 | AGG | Ishares Core U.s. Aggregate | +0.7% | +61.33% | Add |
| 7 | KLAC | Kla CORP | +0.6% | +827.57% | Add |
| 8 | IXUS | Ishares Core Intl Stock ETF | +0.5% | NEW | New buy |
| 9 | XLB | Ss Materials Select Sector | +0.5% | NEW | New buy |
| 10 | JCPB | Jpmorgan Core Plus Bond ETF | +0.4% | +36.55% | Add |
| 11 | MRVL | Marvell Technology Inc | +0.4% | +55.52% | Add |
| 12 | FXI | Ishares China Large-cap ETF | +0.4% | NEW | New buy |
| 13 | XLE | Ss Energy Select Sector | +0.4% | +65.86% | Add |
| 14 | SYY | Sysco CORP | +0.3% | +146.55% | Add |
| 15 | LRCX | Lam Research CORP | +0.2% | +57.49% | Add |
| 16 | UNH | Unitedhealth Group Inc | +0.2% | -0.42% | Trim |
| 17 | ASML | ASML Holding N.V. | +0.2% | -1.29% | Trim |
| 18 | UL | Unilever Plc-sponsored Adr | +0.2% | NEW | New buy |
| 19 | SNDK | Sandisk CORP | +0.2% | NEW | New buy |
| 20 | CRWD | Crowdstrike Holdings Inc - A | +0.2% | -12.03% | Trim |
| 21 | TSM | Taiwan Semiconductor-sp Adr | +0.2% | -3.59% | Trim |
| 22 | DDOG | Datadog Inc - Class A | +0.2% | -22.62% | Trim |
| 23 | ISRG | Intuitive Surgical Inc | +0.2% | +95.04% | Add |
| 24 | INTC | Intel CORP | +0.2% | +33.33% | Add |
| 25 | ADI | Analog Devices Inc | +0.1% | NEW | New buy |
| 26 | GOOG | Alphabet Inc-cl C | +0.1% | -0.26% | Trim |
| 27 | CAT | Caterpillar Inc | +0.1% | -0.16% | Trim |
| 28 | DE | Deere & Co | +0.1% | +41.10% | Add |
| 29 | AME | Ametek Inc | +0.1% | +29.77% | Add |
| 30 | ✓ | +0.1% | NEW | New buy | |
| 31 | ✓ | +0.1% | NEW | New buy | |
| 32 | APH | Amphenol Corp-cl A | +0.1% | -2.57% | Trim |
| 33 | LLY | Eli Lilly & Co | +0.1% | -0.18% | Trim |
| 34 | WDC | Western Digital CORP | +0.1% | NEW | New buy |
| 35 | ANET | Arista Networks Inc | +0.1% | -2.90% | Trim |
| 36 | TXN | Texas Instruments Inc | +0.1% | -0.50% | Trim |
| 37 | PFGC | Performance Food Group Co | +0.1% | — | Unchanged |
| 38 | ETN | Eaton Corporation plc | +0.1% | +8.42% | Add |
| 39 | CRBG | Corebridge Financial Inc | +0.1% | +22.59% | Add |
| 40 | CDNS | Cadence Design Sys Inc | 0% | -7.64% | Trim |
| 41 | GEV | GE Vernova Inc | 0% | — | Unchanged |
| 42 | AJG | Arthur J Gallagher & Co | 0% | +44.60% | Add |
| 43 | ✓ | 0% | NEW | New buy | |
| 44 | ARM | Arm Holdings Plc-adr | 0% | NEW | New buy |
| 45 | GE | General Electric | 0% | -0.79% | Trim |
| 46 | DHR | Danaher CORP | 0% | +25.18% | Add |
| 47 | CVS | Cvs Health CORP | 0% | -0.68% | Trim |
| 48 | BE | Bloom Energy Corp- A | 0% | — | Unchanged |
| 49 | H | Hyatt Hotels CORP - Cl A | 0% | — | Unchanged |
| 50 | FN | Fabrinet | 0% | +25.48% | Add |
Factory Mutual Insurance Co returned an annualized 19.4% over the trailing 36 months — outperforming the S&P 500 by 0.7 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.89 (less volatile than the market) and a 50% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active, with 41.0% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 30 over the past 4 quarters — a shift toward more active trading.
It has added to its XLE position over the past two quarters (+$211.6M, now $236.4M), while trimming MSFT over the same stretch (-$143.3M, still holding $344.6M).
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