CIK: 0000887818
Total reported value
$8.9B
Reporting period: 2026-03-31 · Number of holdings: 196
FACTORY MUTUAL INSURANCE CO disclosed 196 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $8.9B and a quarterly turnover rate of 24.1%.
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Factory Mutual Insurance Co's disclosed holdings carry a Herfindahl concentration index of 0.018 — mathematically equivalent to about 54 equally-sized positions, well below its 196 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 1.62), 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.
Trim AGG
-55.5% -$228.1M
Add XLE
+385.1% $139.6M
Trim MSFT
-3.6% -$127.9M
Trim XLI
-52.0% -$71.6M
Add XOM
+2.7% $35.7M
Trim VGK
-35.4% -$52.5M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 5.69% | +0.17% | -0.69% | |
| 2 | AAPL | Apple INC | Stock-Tech | 4.86% | +0.10% | -1.54% | |
| 3 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.84% | +0.14% | +1.44% | |
| 4 | MSFT | Microsoft CORP | Stock-Tech | 4.05% | -0.90% | -3.59% | |
| 5 | AMZN | Amazon.com INC | Stock-Consumer Disc | 3.22% | +0.11% | +3.25% | |
| 6 | JCPB | Jpmorgan Core Plus Bond ETF | ETF-Other | 3.10% | — | — | |
| 7 | AVGO | Broadcom INC | Stock-Tech | 2.61% | +0.07% | +3.54% | |
| 8 | DFCF | Dimensional Core Fixed INC | ETF-Other | 2.16% | — | — | |
| 9 | AGG | Ishares Core U.s. Aggregate | ETF-Other | 2.04% | -2.11% | -55.49% | |
| 10 | XLE | Ss Energy Select Sector | ETF-Other | 1.85% | +1.60% | +385.06% | |
| 11 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.84% | -0.11% | -2.01% | |
| 12 | DFAX | Dimensional World Ex US Core | ETF-Other | 1.84% | — | — | |
| 13 | JPM | Jpmorgan Chase & Co | Stock-Financials | 1.72% | — | +5.15% | |
| 14 | XLU | St Sr Utl Sl Se Spdr Etf-usd | ETF-Other | 1.66% | +0.01% | -16.08% | |
| 15 | JIRE | Jpmorgan Int Res Enh Eqty | ETF-Other | 1.42% | — | — | |
| 16 | XOM | Exxon Mobil CORP | Stock-Energy | 1.30% | +0.49% | +2.66% | |
| 17 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 1.28% | — | +2.55% | |
| 18 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 1.25% | +0.27% | +3.30% | |
| 19 | V | Visa Inc-class A Shares | Stock-Financials | 1.21% | — | +7.31% | |
| 20 | DFAE | Dimensional Emerging Core Eq | ETF-Emerging Markets | 1.18% | — | — | |
| 21 | TSLA | Tesla INC | Stock-Consumer Disc | 1.13% | -0.07% | +2.61% | |
| 22 | HYDB | Ishares High Yield Systemati | ETF-High Yield | 1.11% | — | — | |
| 23 | KLAC | Kla CORP | Stock-Tech | 1.06% | +0.34% | +9.16% | |
| 24 | VGK | Vanguard Ftse Europe ETF | ETF-Other | 1.04% | -0.43% | -35.38% | |
| 25 | CDNS | Cadence Design Sys INC | Stock-Tech | 0.91% | +0.21% | +32.37% | |
| 26 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.88% | — | -15.88% | |
| 27 | ASML | ASML Holding N.V. | Stock-Tech | 0.85% | +0.19% | -5.69% | |
| 28 | WMT | Walmart INC | Stock-Consumer Staples | 0.85% | — | -0.60% | |
| 29 | CVX | Chevron CORP | Stock-Energy | 0.85% | +0.31% | +3.05% | |
| 30 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.84% | -0.10% | -5.53% | |
| 31 | IWR | Ishares Russell Mid-cap ETF | ETF-Other | 0.83% | — | — | |
| 32 | GLD | Spdr Gold Shares | ETF-Commodities | 0.82% | -0.19% | -33.16% | |
| 33 | XLI | Ss Industrial Select Sector | ETF-Other | 0.81% | -0.64% | -52.01% | |
| 34 | UNH | Unitedhealth Group INC | Stock-Healthcare | 0.80% | — | +9.37% | |
| 35 | PM | Philip Morris International | Stock-Consumer Staples | 0.80% | — | +2.92% | |
| 36 | XLY | Ss Consumer Disc Select Sect | ETF-Other | 0.70% | — | — | |
| 37 | MU | Micron Technology INC | Stock-Tech | 0.65% | +0.21% | +12.14% | |
| 38 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 0.65% | — | +2.61% | |
| 39 | KO | Coca-cola Co/the | Stock-Consumer Staples | 0.62% | — | +2.61% | |
| 40 | MS | Morgan Stanley | Stock-Financials | 0.61% | — | — | |
| 41 | APH | Amphenol Corp-cl A | Stock-Tech | 0.60% | — | +9.48% | |
| 42 | UNP | Union Pacific CORP | Stock-Industrials | 0.57% | — | -8.25% | |
| 43 | LIN | Linde plc | Stock-Materials | 0.57% | — | +3.89% | |
| 44 | ETN | Eaton Corporation plc | Stock-Industrials | 0.56% | — | +0.61% | |
| 45 | USHY | Ishares Broad Usd High Yield | ETF-High Yield | 0.56% | — | — | |
| 46 | PFGC | Performance Food Group Co | Stock-Consumer Staples | 0.55% | +0.37% | +185.72% | |
| 47 | AME | Ametek INC | Stock-Industrials | 0.52% | — | +1.02% | |
| 48 | HD | Home Depot INC | Stock-Consumer Disc | 0.51% | — | +2.44% | |
| 49 | CAT | Caterpillar INC | Stock-Industrials | 0.51% | — | +0.79% | |
| 50 | MPWR | Monolithic Power Systems INC | Stock-Tech | 0.49% | — | +1.78% |
Performance for Q3 2026
+2.4%
Performance Last 4 Quarters
+21.9%
Based on 79% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 196 | $8.9B | 24 | |
| 2025-12-31 | 196 | $9.9B | 18 | |
| 2025-09-30 | 195 | $10.3B | 34 | |
| 2025-06-30 | 162 | $9.1B | 0 | |
| 2025-03-31 | 167 | $8.6B | 100 | |
| 2024-12-31 | 172 | $9.2B | 0 | |
| 2024-09-30 | 173 | $9.7B | 0 | |
| 2024-06-30 | 170 | $8.8B | 0 | |
| 2024-03-31 | 169 | $8.7B | 0 | |
| 2023-12-31 | 162 | $8.1B | 0 | |
| 2023-09-30 | 156 | $7.2B | 0 | |
| 2023-06-30 | 142 | $6.8B | 0 | |
| 2023-03-31 | 147 | $6.4B | 0 | |
| 2022-12-31 | 146 | $6.6B | 0 | |
| 2022-09-30 | 144 | $6.1B | 0 | |
| 2022-06-30 | 144 | $6.1B | 0 | |
| 2022-03-31 | 136 | $7.4B | 0 | |
| 2021-12-31 | 133 | $6.9B | 0 | |
| 2021-09-30 | 129 | $8.0B | 0 | |
| 2021-06-30 | 126 | $8.2B | 100 | |
| 2021-03-31 | 130 | $7.8B | 16 | |
| 2020-12-31 | 128 | $7.4B | 25 | |
| 2020-09-30 | 106 | $6.2B | 12 | |
| 2020-06-30 | 109 | $5.8B | 24 | |
| 2020-03-31 | 113 | $5.3B | 30 | |
| 2019-12-31 | 117 | $6.8B | 13 | |
| 2019-09-30 | 116 | $6.5B | 31 | |
| 2019-06-30 | 130 | $8.4B | 20 | |
| 2019-03-31 | 127 | $8.5B | 23 | |
| 2018-12-31 | 127 | $7.8B | 25 | |
| 2018-09-30 | 138 | $9.6B | 15 | |
| 2018-06-30 | 158 | $9.3B | 14 | |
| 2018-03-31 | 162 | $9.1B | 15 | |
| 2017-12-31 | 166 | $9.6B | 10 | |
| 2017-09-30 | 166 | $9.1B | 10 | |
| 2017-06-30 | 165 | $8.6B | 8 | |
| 2017-03-31 | 166 | $8.4B | 12 | |
| 2016-12-31 | 176 | $8.4B | 13 | |
| 2016-09-30 | 177 | $8.1B | 14 | |
| 2016-06-30 | 176 | $7.6B | 15 | |
| 2016-03-31 | 186 | $7.7B | 18 | |
| 2015-12-31 | 182 | $7.4B | 14 | |
| 2015-09-30 | 193 | $7.3B | 14 | |
| 2015-06-30 | 189 | $7.7B | 11 | |
| 2015-03-31 | 185 | $7.6B | 16 | |
| 2014-12-31 | 180 | $7.4B | 14 | |
| 2014-09-30 | 179 | $7.2B | 11 | |
| 2014-06-30 | 174 | $7.3B | 14 | |
| 2014-03-31 | 172 | $6.9B | 11 | |
| 2013-12-31 | 165 | $6.8B | 11 | |
| 2013-09-30 | 165 | $6.3B | 9 | |
| 2013-06-30 | 162 | $6.1B | — |
Factory Mutual Insurance Co's most significant position changes for 2026-03-31: Sold out: Ss Technology Select Sector (XLK); Sold out: Ishares Core Intl Stock ETF (IXUS); Sold out: Vanguard S&p 500 ETF (VOO); Sold out: Ss Materials Select Sector (XLB); New buy: Crowdstrike Holdings INC - A (CRWD).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | XLE | Ss Energy Select Sector | +1.6% | +385.06% | Add |
| 2 | XOM | Exxon Mobil CORP | +0.5% | +2.66% | Add |
| 3 | PFGC | Performance Food Group Co | +0.4% | +185.72% | Add |
| 4 | KLAC | Kla CORP | +0.3% | +9.16% | Add |
| 5 | CVX | Chevron CORP | +0.3% | +3.05% | Add |
| 6 | TSM | Taiwan Semiconductor-sp Adr | +0.3% | +3.30% | Add |
| 7 | ALGN | Align Technology INC | +0.2% | +55.95% | Add |
| 8 | MU | Micron Technology INC | +0.2% | +12.14% | Add |
| 9 | CDNS | Cadence Design Sys INC | +0.2% | +32.37% | Add |
| 10 | ASML | ASML Holding N.V. | +0.2% | -5.69% | Trim |
| 11 | DDOG | Datadog INC - Class A | +0.2% | +93.29% | Add |
| 12 | SLB | Slb LTD | +0.2% | +24.73% | Add |
| 13 | NVDA | Nvidia CORP | +0.2% | -0.69% | Trim |
| 14 | CNQ | Canadian Natural Resources | +0.2% | +3.37% | Add |
| 15 | GOOG | Alphabet Inc-cl C | +0.1% | +1.44% | Add |
| 16 | AMZN | Amazon.com INC | +0.1% | +3.25% | Add |
| 17 | AAPL | Apple INC | +0.1% | -1.54% | Trim |
| 18 | AVGO | Broadcom INC | +0.1% | +3.54% | Add |
| 19 | XLU | St Sr Utl Sl Se Spdr Etf-usd | 0% | -16.08% | Trim |
| 20 | TSLA | Tesla INC | -0.1% | +2.61% | Add |
| 21 | KKR | Kkr & Co INC | -0.1% | +5.75% | Add |
| 22 | CB | Chubb Limited | -0.1% | -29.87% | Trim |
| 23 | ACN | Accenture plc | -0.1% | +1.45% | Add |
| 24 | PLTR | Palantir Technologies Inc-a | -0.1% | -9.59% | Trim |
| 25 | LLY | Eli Lilly & Co | -0.1% | -5.53% | Trim |
| 26 | ORCL | Oracle CORP | -0.1% | -10.24% | Trim |
| 27 | META | Meta Platforms Inc-class A | -0.1% | -2.01% | Trim |
| 28 | TMO | Thermo Fisher Scientific INC | -0.1% | -18.79% | Trim |
| 29 | BKNG | Booking Holdings INC | -0.1% | -24.12% | Trim |
| 30 | ADBE | Adobe INC | -0.2% | -97.31% | Trim |
| 31 | KIE | Ss Spdr S&p Insurance ETF | -0.2% | -48.02% | Trim |
| 32 | GLD | Spdr Gold Shares | -0.2% | -33.16% | Trim |
| 33 | WFC | Wells Fargo & Co | -0.2% | -30.92% | Trim |
| 34 | XLP | Ss Consumer Staples Sel Sect | -0.3% | -98.31% | Trim |
| 35 | NOW | Servicenow INC | -0.3% | -16.40% | Trim |
| 36 | VGK | Vanguard Ftse Europe ETF | -0.4% | -35.38% | Trim |
| 37 | XLI | Ss Industrial Select Sector | -0.6% | -52.01% | Trim |
| 38 | MSFT | Microsoft CORP | -0.9% | -3.59% | Trim |
| 39 | AGG | Ishares Core U.s. Aggregate | -2.1% | -55.49% | Trim |
| 40 | XLK | Ss Technology Select Sector | — | EXIT | Sold out |
| 41 | IXUS | Ishares Core Intl Stock ETF | — | EXIT | Sold out |
| 42 | VOO | Vanguard S&p 500 ETF | — | EXIT | Sold out |
| 43 | XLB | Ss Materials Select Sector | — | EXIT | Sold out |
| 44 | CRWD | Crowdstrike Holdings INC - A | — | NEW | New buy |
| 45 | UL | Unilever Plc-sponsored Adr | — | EXIT | Sold out |
| 46 | USFD | US Foods Holding CORP | — | EXIT | Sold out |
| 47 | DTE | Dte Energy Company | — | NEW | New buy |
| 48 | PPL | Ppl CORP | — | NEW | New buy |
| 49 | LRCX | Lam Research CORP | — | NEW | New buy |
| 50 | FN | Fabrinet | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-05 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-23 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-10 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-07 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-17 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-24 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-10 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-07-23 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-12 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-23 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-07 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-27 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-08 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-02 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-04 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-08 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-13 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-10 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-12 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-07-14 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-10 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-17 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-10-19 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-07-13 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-04-16 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-01-28 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-10-22 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-07-16 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-04-09 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-01-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-10 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-19 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-04-05 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-01-16 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-10-11 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-07-10 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-04-21 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-01-19 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-10-26 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-07-12 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-04-27 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-01-14 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-10-14 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-07-21 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-04-13 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-01-12 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-11-04 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-12 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-15 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-04 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-10-16 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-07-25 | 13F-HR | View on EDGAR |
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