Deep Track Capital, LP

SEC CIK: 0001856083
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

BIIB holding history

Biogen Inc. in every 13F filed by Deep Track Capital, LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q2 2023): 0; Sold out in Q2 2023
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q4 2022

Holdings of BIIB by Deep Track Capital, LP, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2023	0	$0	0.0%	−200,000−100.0%	Sold out	Holders
Q1 2023	200,000	$55.6M	2.4%	−100,000−33.3%	Reduced	Holders
Q4 2022	300,000	$83.1M	3.6%	+300,000	New	Holders