Shares from Microsoft, Amazon, Apple & Co.: This is what happened in Jeremy Grantham’s portfolio in Q1 2026

11th place: The ranking

Once a quarter, institutional investors in the USA have to reveal their cards: Anyone who manages more than 100 million US dollars is obliged to submit Form 13F to the Securities and Exchange Commission (SEC). This also applies to Grantham, Mayo & van Otterloo (GMO), the investment company of star investor Jeremy Grantham. At the end of the quarter, GMO had approximately $39.1 billion in equity assets under management. The following overview shows the ten largest positions in the portfolio, sorted according to their percentage share of the overall portfolio. The data is as of March 31, 2026.

Source: sec.gov, Image: Lane Turner/Boston Globe/Getty Images

10th place: US Bancorp

The major US bank US Bancorp will appear in the top ten of the Grantham portfolio in the first quarter of 2026. This is because the star investor increased his investment by 712,639 shares to a total of 19,113,643 shares. The stake was worth $994.1 million as of the reporting date, which represents 2.53 percent of the total portfolio.

Source: sec.gov, Image: US Bancorp

9th place: Broadcom

GMO also increased its shareholding at Broadcom and acquired 211,786 new shares in the reporting period, so that its holding now includes a total of 3,348,517 Broadcom shares. With an equivalent value of $1.036 billion, this represents 2.64 percent of the total portfolio.

Source: sec.gov, Image: Ken Wolter / Shutterstock.com

8th place: Thermo Fisher Scientific

Thermo Fisher Scientific’s investment was once again in eighth place in the first quarter. Here too, GMO took action and bought 90,143 securities. The total of 2,502,206 shares had a value of 1.23 billion US dollars at the end of the year – with a portfolio share of 3.13 percent.

Source: sec.gov, Image: Michael Vi / Shutterstock.com

7th place: Amazon

The Amazon investment again landed in seventh place in the top 10 in Q1. After the hedge fund reduced its holdings by 124,038 shares, the number of Internet group shares in the portfolio shrank to 6,229,375 shares. With a value of 1.297 billion US dollars, the investment has a portfolio share of 3.3 percent.

Source: sec.gov, Image: Hadrian / Shutterstock.com

6th place: Lam Research

The investment in Lam Research slipped one place to sixth place. After GMO took the red pencil here and threw 2,439,874 shares out of the portfolio, the remaining 6,904,206 shares still had a value of 1.475 billion US dollars at the end of the year. This means that the investment in the US technology company has a portfolio share of 3.76 percent.

Source: sec.gov, Image: Michael Vi / Shutterstock.com

5th place: Meta Platforms

Meta participation slipped from the top three to fifth place. And this despite the fact that GMO increased the investment by 164,479 shares to a total of 3,073,041 papers. As of the reporting date, the investment in the Facebook Group was worth $1.758 billion, resulting in a portfolio share of 4.48 percent.

Source: sec.gov, Image: rafapress / Shutterstock.com

4th place: Apple

Apple was able to defend its ranking in the reporting period with a market value of the shares it held of $1.76 billion and a portfolio share of 4.48 percent. Here too, GMO made gains and acquired 230,457 new shares, meaning that a total of 6,937,574 iGroup shares were in the portfolio as of the reporting date.

Source: sec.gov, Image: Andrey Bayda / Shutterstock.com

3rd place: Johnson & Johnson

Johnson & Johnson shares went from sixth to third place. With a value of 1.779 billion US dollars, the investment has a portfolio share of 4.53 percent. During the reporting period, GMO purchased 189,727 shares in the pharmaceutical company and thus held a total of 7,278,866 shares.

Source: sec.gov, Image: josefkubes / Shutterstock.com

2nd place: Alphabet A

The A shares of Google parent Alphabet were once again in second place in the first quarter of the year. GMO added 228,986 securities to the portfolio. With 6,900,577 shares remaining, the investment achieved a market value of 1.984 billion US dollars and a portfolio share of 5.05 percent.

Source: sec.gov, Image: Fenixx666 / Shutterstock.com

1st place: Microsoft

Microsoft will once again be undefeated in first place in the first quarter of 2026. GMO increased its stake in the tech group by 908,452 shares to a total of 6,176,138 shares in the reporting period. With a value of 2.286 billion US dollars, Microsoft has a portfolio share of 5.82 percent.

Source: sec.gov, Image: Volodymyr Kyrylyuk / Shutterstock.com