Apparatus and methods are described herein for anchoring a prosthetic heart valve. In some embodiments, an apparatus includes a tether attachment member that includes a base member (240) that defines at least a portion of a tether passageway (235) through which a portion of a tether (228) extending from a prosthetic heart valve can be received there through. The base member defines a locking pin channel (234) that intersects the tether passageway. A locking pin (226) is disposable within the locking pin channel and movable between a first position in which the locking pin is at a spaced distance from the tether passageway, and a second position in which the locking pin intersects the tether passageway and can engage the portion of a tether disposed therein to secure the tether to the tether attachment member.
