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Mesirow Financial Investment Management’s Ionis Pharmaceuticals IONS Stock Holding History

Mesirow Financial Investment Management’s Portfolio IONS Stock Details IONS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$201K Sell
2,530
-2,930
-54% -$220K ﹤0.01% 507
2026
Q1 		$410K Buy
+5,460
New +$431K 0.01% 385

Other funds holding IONS

New York State Common Retirement Fund
New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
DC
Davenport & Co Richmond, Virginia $20.4B AUM 18.11% 1-Year Est. Return
HP
HealthInvest Partners Stockholm, Sweden $372M AUM 59.89% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
CUAMC
China Universal Asset Management Company Shanghai, China $1.67B AUM 89% 1-Year Est. Return
PFSRSONJ
Police & Firemen's Retirement System of New Jersey Trenton, New Jersey $13.3B AUM 45.46% 1-Year Est. Return
EAM
Erste Asset Management Vienna, Austria $12.9B AUM 52.69% 1-Year Est. Return
YIH
Y-Intercept (HK) Hong Kong $5.05B AUM 17.89% 1-Year Est. Return
FISPB
Fideuram - Intesa Sanpaolo Private Banking Turin $3.33B AUM

Mesirow Financial Investment Management's IONS Position: Q2 2026 in Review

Mesirow Financial Investment Management reduced its Ionis Pharmaceuticals (IONS) stake by 54% in Q2 2026, selling an estimated $220K and leaving 2,530 shares worth $201K. The position accounts for ﹤0.01% of the portfolio, ranked #507.

Mesirow Financial Investment Management first reported a position in IONS in Q1 2026 and has held it in 2 quarters since. The position peaked at $410K in Q1 2026. 116 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Mesirow Financial Investment Management held 2,530 shares of Ionis Pharmaceuticals worth $201K as of Q2 2026.
  • Mesirow Financial Investment Management sold 2,930 Ionis Pharmaceuticals shares in Q2 2026, an estimated $220K.
  • Ionis Pharmaceuticals made up ﹤0.01% of Mesirow Financial Investment Management's portfolio in Q2 2026, its #507 holding.
  • Mesirow Financial Investment Management first reported a position in Ionis Pharmaceuticals in Q1 2026 and has held it in 2 quarters since.
  • Mesirow Financial Investment Management's Ionis Pharmaceuticals position peaked at $410K in Q1 2026.
  • 116 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Mesirow Financial Investment Management's 13F filing for Q2 2026, filed 22 Jul 2026.