CSS LLC

SEC CIK: 0001103646
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MCRB holding history

Seres Therapeutics, Inc. in every 13F filed by CSS LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MCRB overview All 13F holders of MCRB Full Q2 2026 holdings

Shares (Q3 2021): 0; Sold out in Q3 2021
Value: $0
% of portfolio: 0.0%
Quarters held: 1; Since Q2 2021

Holdings of MCRB by CSS LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q3 2021	0	$0	0.0%	−44,240−100.0%	Sold out	Holders
Q2 2021	44,240	$1.05M	0.1%	+44,240	New	Holders