Ruane Cunniff's Strategic Moves: MSA Safety Inc. Takes Center Stage with 2.74% Portfolio Impact

Ruane Cunniff's Q2 2025 13F filing shows the firm added six stocks to their portfolio, with MSA Safety Inc. being the largest addition at 2.74% of the portfolio. The firm also increased stakes in seven stocks, including Icon PLC and Taiwan Semiconductor Manufacturing Co Ltd, and completely exited Builders FirstSource Inc. Additionally, Ruane Cunniff reduced positions in 17 stocks, including Meta Platforms Inc. and Liberty Broadband Corp.

Ruane Cunniff, a prominent investment firm founded in 1969, recently submitted its 13F filing for the second quarter of 2025. The filing provides insights into the firm's investment moves during this period. Ruane Cunniff operates on the belief that investing in great businesses at reasonable prices can outperform the stock market, a strategy that has built an impressive track record [1].

The firm added six stocks to its portfolio in the second quarter. The most significant addition was MSA Safety Inc. (NYSE:MSA), with the firm acquiring 949,067 shares, accounting for 2.74% of the portfolio and a total value of $158.997 million [1]. Other notable additions include Bio-Techne Corp (NASDAQ:TECH) and Dollar General Corp (NYSE:DG) [1].

Ruane Cunniff also increased stakes in seven stocks. The most notable increase was in Icon PLC (NASDAQ:ICLR), with an additional 453,833 shares, bringing the total to 1,708,183 shares and a 36.18% increase in share count [1]. The firm also increased its position in Taiwan Semiconductor Manufacturing Co Ltd (NYSE:TSM) by 51,388 shares, bringing the total to 1,917,681 shares [1].

The firm completely exited one holding: Builders FirstSource Inc (NYSE:BLDR), selling all 4,700 shares [1]. Additionally, Ruane Cunniff reduced positions in 17 stocks, including Meta Platforms Inc (NASDAQ:META) and Liberty Broadband Corp (NASDAQ:LBRDK) [1].

As of the second quarter of 2025, Ruane Cunniff's portfolio included 44 stocks, with the top holdings being Charles Schwab Corp (NYSE:SCHW), Liberty Media Corp (NASDAQ:FWONK), and Intercontinental Exchange Inc (NYSE:ICE) [1].

References
[1] https://finance.yahoo.com/news/ruane-cunniffs-strategic-moves-msa-160033369.html