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Islandia Today
By the People, for the People
M3F Inc. Reduces Stake in Pioneer Bancorp
Investment firm lowers ownership in regional bank by nearly 10% in third quarter
Mar. 3, 2026 at 12:31am
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M3F Inc., an investment management firm, has reduced its stake in Pioneer Bancorp, Inc. (NASDAQ:PBFS) by 9.9% in the third quarter, according to a recent 13F filing with the Securities and Exchange Commission. M3F now owns approximately 1.88 million shares of the regional bank, making it the fifth-largest position in the firm's investment portfolio.
Why it matters
This reduction in ownership by a major institutional investor could signal a shift in sentiment around Pioneer Bancorp, which has seen its stock price fluctuate over the past year. As a regional bank serving the Long Island market, Pioneer Bancorp's performance is closely tied to economic conditions in its local area.
The details
According to the 13F filing, M3F sold 206,361 shares of Pioneer Bancorp during the third quarter, lowering its total stake to 7.51% of the company's outstanding shares. The investment firm cited portfolio rebalancing and risk management as reasons for the sale. Pioneer Bancorp's stock price has ranged from $10.60 to $15.18 over the past 52 weeks.
- M3F Inc. filed its 13F report for the third quarter on March 1, 2026.
- The reduction in M3F's stake in Pioneer Bancorp occurred during the third quarter of 2025.
The players
M3F Inc.
An investment management firm that owns a significant stake in Pioneer Bancorp, Inc.
Pioneer Bancorp, Inc.
A regional bank headquartered in Islandia, New York, that provides banking services to individuals, small businesses, and nonprofit organizations across Long Island.
The takeaway
The reduction in M3F's stake in Pioneer Bancorp could signal a shift in investor sentiment towards the regional bank, which may be impacted by economic conditions in its local market. As a major institutional investor, M3F's portfolio decisions can provide insights into the broader outlook for the banking sector.
