Exome Asset Management LLC: IONIS PHARMACEUTICALS INC (IONS): Quarterly 13F Position History
As of Q1 2026, Exome Asset Management LLC reported 110,064 shares of IONIS PHARMACEUTICALS INC (IONS), worth $8.3M and representing 4.9% of its 13F equity book. Quarter-over-quarter share count change: 6,451 (-5.5%) . The position first appeared in Q4 2024 and has been disclosed across 6 13F-HR filings in Pactolio's tracked window.
- 110,064Shares Held (Latest Filing)
- $8.3MReported Market Value (Latest Filing)
- 4.9%Portfolio Weight (% of 13F Equity Book)
- 6,451Quarter-over-Quarter Share Change
- -$952.8KQuarter-over-Quarter Value Change
- 135,616Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 6 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 110,064 | 6,451 | -5.5% | $8.3M | 4.9% | $75.1 |
| Q4 2025 | 116,515 | 14,501 | -11.1% | $9.2M | 4.6% | $79.1 |
| Q3 2025 | 131,016 | +9,900 | +8.2% | $8.6M | 5.7% | $65.4 |
| Q2 2025 | 121,116 | 14,500 | -10.7% | $4.8M | 3.9% | $39.5 |
| Q1 2025 | 135,616 | +74,249 | +121.0% | $4.1M | 3.7% | $30.2 |
| Q4 2024 | 61,367 | — | — | $2.1M | 1.6% | $35.0 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Exome Asset Management LLC first disclose a IONS position in 13F-HR filings?
Exome Asset Management LLC first reported IONIS PHARMACEUTICALS INC (IONS) on its 13F-HR filing for the period ending 2024-12-31 (Q4 2024). The position has appeared on 6 reported quarters within Pactolio's tracked window.
What was Exome Asset Management LLC's most recent quarter-over-quarter share-count change in IONS?
Between Q4 2025 and Q1 2026, Exome Asset Management LLC reduced its IONS position by 6,451 shares (-5.5%), leaving 110,064 shares at a market value of $8.3M.
Does the implied price-per-share represent Exome Asset Management LLC's cost basis in IONS?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.