Port Capital Reports Large Second-Quarter Stock Purchases

Port Capital purchased 738,980 shares of Old Market Capital Corporation (OMCC), valued at about $30.24 million, representing roughly 10.70% of OMCC. Notably, OMCC was formerly Nicholas Financial and rebranded in September 2024.
There is a discrepancy between sources on Port Capital’s RLI Corp. stake: Holdings Channel reports 1,345,839 shares valued at about $79.499 million, constituting 3.2% of Port Capital’s portfolio and placing RLI as its 12th largest position, whereas the summary notes about 1.34% of holdings.
Port Capital’s stake in RBC Bearings Incorporated totals 290,280 shares, valued at approximately $186.96 million, making up 7.6% of its portfolio and making RBC Bearings its 2nd biggest position.
In Phillips 66, Port Capital acquired 2,103 shares for about $356,000. Separately, insider activity included CFO Kevin J. Mitchell selling 11,021 shares on July 9 (around $190.03 per share) and EVP Vanessa Allen Sutherland selling 3,523 shares on July 21.
Prosperity Bancshares represents a 461,055-share stake, valued at about $33.671 million, or roughly 1.4% of Port Capital’s portfolio, making PB its 27th largest holding; institutional investors own about 80.69% of PB.
Port Capital LLC made aggressive moves in the second quarter, purchasing stakes across five companies totaling hundreds of millions of dollars. The firm's largest new position was RBC Bearings Incorporated at 290,280 shares worth roughly $186.96 million, making it Port Capital's second-biggest holding overall tickerreport. The portfolio additions reflect a diversified strategy spanning energy, manufacturing, and financial services.
RBC Bearings emerged as Port Capital's major bet, with the 290,280-share stake accounting for 7.6% of the portfolio. At roughly $186.96 million in value, the manufacturing company became only the second-largest holding in Port Capital's lineup tickerreport. The investment signals confidence in the aerospace and defense supplier's growth trajectory.
Port Capital bought 1.35 million shares of RLI Corp., valued at about $79.5 million and representing roughly 3.2% of the portfolio, making it the firm's 12th largest position tickerreport. The insurer stake reflects broad institutional interest in mid-cap equities. Meanwhile, Port Capital acquired 738,980 shares of Old Market Capital Corporation for $30.24 million, or roughly 10.7% of OMCC—the rebranded successor to Nicholas Financial tickerreport.
Prosperity Bancshares received a smaller allocation: 461,055 shares worth about $33.7 million, or 1.4% of Port Capital's holdings, placing it as the 27th largest position tickerreport. Institutional investors own roughly 80.7% of Prosperity Bancshares overall, indicating strong institutional backing for the regional bank.
Port Capital took a small position in energy giant Phillips 66, buying just 2,103 shares for approximately $356,000 tickerreport. The limited stake suggests the firm is maintaining selective energy exposure rather than making a major bet. Meanwhile, Phillips 66 insiders recently trimmed holdings—CFO Kevin Mitchell sold 11,021 shares on July 9, and EVP Vanessa Sutherland sold 3,523 shares on July 21 tickerreport.
Port Capital's moves reflect broader trends of institutional investors reshuffling mid-cap and large-cap equity stakes. During the same quarter, Port Capital also initiated smaller positions elsewhere, including $1.39 million in CSW Industrials and $797,000 in Ares Capital Corporation tickerreport. The pattern shows disciplined, selective deployment across multiple sectors rather than concentrated bets.
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