Holocene Advisors, LP

SEC CIK: 0001700574
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

SION holding history

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

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

Shares (Q4 2025): 0; Sold out in Q4 2025
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q1 2025

Holdings of SION by Holocene Advisors, LP, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q4 2025	0	$0	0.0%	−50,000−100.0%	Sold out	Holders
Q3 2025	50,000	$1.47M	<0.1%	00.0%	Unchanged	Holders
Q2 2025	50,000	$867.5K	<0.1%	00.0%	Unchanged	Holders
Q1 2025	50,000	$523.0K	<0.1%	+50,000	New	Holders