SION

Sionna Therapeutics, Inc. · XNAS

Season: Q2 2026 · as of Jun 30
Holders: 1 of 97 filed · prev 2
Median weight: 0.40%
Sector: Health Care
Type: equity · US

Moves1 this quarter

0.0 pp in · −0.0 pp out

New 0 0.00 pp
Added 0 0.00 pp
Trimmed 0 0.00 pp
Exited 1 −0.01 pp

Streakslongest holders · 6 quarters on record

Viking Andreas Halvorsen, CEO 0.4%6+ quarters

The record for SION begins Q1 2025: 6 quarters.

Over time6 quarters, Q1 2025 to Q2 2026

Managers holding1 Q2 2026

Largest weight0.4% Q2 2026

Holders1 of 97 filed · 1 exited


VikingAndreas Halvorsen, CEO	0.40%	3,195,181	$141M	held	—	6+ q
PolenDan Davidowitz, portfolio manager	—	—	—	exited	−0.01 pp	—