Summit Midstream Partners, LP Announces Extension of Expiration Date in Series A Preferred Unit Exchange Offer News provided by Share this article Share this article HOUSTON, April 7, 2021 /PRNewswire/ -- Summit Midstream Partners, LP (NYSE: SMLP) (the "Partnership") announced today that it has amended its offer to exchange (the "Exchange Offer") its 9.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (Liquidation Preference $1,000) (the "Series A Preferred Units") tendered in the Exchange Offer for up to 2,400,000 newly issued common units representing limit...