IONIS PHARMACEUTICALS INC (IONS) Stock Ownership

NASDAQ:IONS • US4622221004

Current stock price

74.79 USD
-0.34 (-0.45%)
At close:
74.79 USD
0 (0%)
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IONS Ownership information

IONS Ownership Chart.IONS Ownership Chart: showing Insider, Institutional ownership and shares available to the public.IONS Ownership.InsiderInstitutional



Shares Outstanding165.19M
Float163.77M
Float Short Interest Percentage8.52%
Owners (insider)0.82%
Owners (institutional)105.44%
Owners (insider) change-1.34%
Owners (institutional) change-16.47%
IONS Institutional Ownership HistoryIONS Institutional Ownership HistoryIONS Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M 200M
IONS Historical Insider Transactions ChartIONS Historical Insider Buy and Sell Transactions ChartIONS Historical Insider Transactions May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 0 500K -500K
DateNameTypeSharesPriceAmount
Apr 2, 2026Devers Shannon L.Open Market Sale619374.05$ 458,613.33
Apr 1, 2026KLEIN JOSEPH IIIOption Excercise2232139.46$ 880,706.68
Apr 1, 2026KLEIN JOSEPH IIIOpen Market Sale2232175.55$ 1,686,301.88
Mar 19, 2026Schneider EugeneOpen Market Sale581270.97$ 412,486.36
Mar 10, 2026Jenne KyleOption Excercise3727744.67$ 1,665,127.95
Mar 10, 2026Jenne KyleOpen Market Sale3727775.85$ 2,827,324.68
Mar 9, 2026O'NEIL PATRICK R.Open Market Sale1014875.25$ 763,662.37
Mar 9, 2026Monia Brett POption Excercise14845460.89$ 9,039,364.06
Mar 9, 2026Monia Brett POpen Market Sale16077375.35$ 12,114,155.20
Mar 3, 2026Devers Shannon L.Option Excercise2010635.97$ 723,254.35
Mar 3, 2026Devers Shannon L.Open Market Sale2010679.40$ 1,596,432.82
Mar 3, 2026BENNETT C FRANKOption Excercise6508953.73$ 3,497,530.94
Mar 3, 2026BENNETT C FRANKOpen Market Sale8508979.23$ 6,741,669.17
Mar 3, 2026Baroldi JosephOpen Market Sale665979.74$ 530,986.62
Mar 3, 2026Baroldi JosephOption Excercise213844.57$ 95,281.24
Mar 3, 2026LOSCALZO JOSEPHOption Excercise103238.06$ 39,277.92
Mar 3, 2026LOSCALZO JOSEPHOpen Market Sale103280.26$ 82,832.81
Mar 3, 2026KLEIN JOSEPH IIIOption Excercise1600040.76$ 652,120.00
Mar 3, 2026KLEIN JOSEPH IIIOpen Market Sale2133279.51$ 1,696,181.37
Mar 3, 2026Diaz Allene M.Option Excercise4032139.72$ 1,601,606.68
Mar 3, 2026Diaz Allene M.Open Market Sale5487879.35$ 4,354,428.21
Feb 27, 2026BENNETT C FRANKOther Aquisition26148.87$ 12,754.16
Feb 27, 2026Monia Brett POther Aquisition48448.87$ 23,651.39
Feb 27, 2026Swayze EricOther Aquisition25648.87$ 12,509.82
Feb 27, 2026O'NEIL PATRICK R.Other Aquisition37648.87$ 18,373.80
Feb 27, 2026Birchler BrianOther Aquisition35148.87$ 17,152.14
Feb 13, 2026Swayze EricOpen Market Sale1564281.76$ 1,278,913.96
Feb 11, 2026PARSHALL B LYNNEOpen Market Sale500082.72$ 413,588.50
Feb 6, 2026Monia Brett POpen Market Sale2943085.79$ 2,524,820.30
Feb 2, 2026BENNETT C FRANKOpen Market Sale8508982.93$ 7,056,215.53
Feb 2, 2026BENNETT C FRANKOption Excercise6508953.73$ 3,497,530.94
Jan 22, 2026Devers Shannon L.Open Market Sale397781.34$ 323,490.37
Jan 16, 2026Swayze EricOpen Market Sale993375.34$ 748,383.09
Jan 16, 2026Schneider EugeneOpen Market Sale930275.59$ 703,138.18
Jan 16, 2026O'NEIL PATRICK R.Open Market Sale919175.84$ 697,045.44
Jan 16, 2026Monia Brett POpen Market Sale4403474.82$ 3,294,623.88
Jan 16, 2026BENNETT C FRANKOpen Market Sale897775.15$ 674,621.55
Jan 16, 2026Baroldi JosephOpen Market Sale805675.75$ 610,276.47
Jan 16, 2026Kordasiewicz Holly B.Open Market Sale414175.66$ 313,308.06
Jan 16, 2026Jenne KyleOpen Market Sale182375.96$ 138,475.08
Jan 16, 2026HOUGEN ELIZABETH LOpen Market Sale1292275.22$ 971,992.84
Jan 16, 2026Devers Shannon L.Open Market Sale835375.95$ 634,410.35
Jan 16, 2026Birchler BrianOpen Market Sale848075.11$ 636,932.80
Jan 15, 2026Swayze EricOption Excercise214770.00$ 0.00
Jan 15, 2026Schneider EugeneOption Excercise216850.00$ 0.00
Jan 15, 2026O'NEIL PATRICK R.Option Excercise214730.00$ 0.00
Jan 15, 2026Monia Brett POption Excercise891450.00$ 0.00
Jan 15, 2026BENNETT C FRANKOption Excercise210550.00$ 0.00
Jan 15, 2026Baroldi JosephOption Excercise198870.00$ 0.00
Jan 15, 2026Kordasiewicz Holly B.Option Excercise111190.00$ 0.00
Jan 15, 2026Jenne KyleOption Excercise70130.00$ 0.00
Jan 15, 2026HOUGEN ELIZABETH LOption Excercise287290.00$ 0.00
Jan 15, 2026Devers Shannon L.Option Excercise173770.00$ 0.00
Jan 15, 2026Birchler BrianOption Excercise200890.00$ 0.00
Jan 15, 2026YANG MICHAEL J.Option Excercise19300.00$ 0.00
Jan 7, 2026Devers Shannon L.Option Excercise4419951.25$ 2,265,415.20
Jan 7, 2026Devers Shannon L.Open Market Sale4419985.08$ 3,760,577.42
Jan 2, 2026Swayze EricOption Excercise2346360.89$ 1,428,662.07
Jan 2, 2026Swayze EricOpen Market Sale2346379.12$ 1,856,324.51
Dec 1, 2025WENDER JOSEPH HOpen Market Sale2800080.82$ 2,262,847.67
Nov 25, 2025KLEIN JOSEPH IIIOption Excercise120000.00$ 0.00
Nov 25, 2025KLEIN JOSEPH IIIOpen Market Sale1200080.00$ 960,000.00
Nov 25, 2025Devers Shannon L.Option Excercise1677753.77$ 902,099.29
Nov 25, 2025Devers Shannon L.Open Market Sale1677780.91$ 1,357,442.17
Nov 19, 2025HERMAN JOAN EOption Excercise4400057.40$ 2,525,400.00
Nov 19, 2025HERMAN JOAN EOpen Market Sale4400072.13$ 3,173,830.00
Nov 18, 2025WENDER JOSEPH HOption Excercise1600024.42$ 390,720.00
Nov 6, 2025Birchler BrianOpen Market Sale800076.17$ 609,379.20
Nov 5, 2025Geary Richard SOption Excercise3463959.05$ 2,045,307.53
Nov 5, 2025Geary Richard SOpen Market Sale3463975.69$ 2,621,815.84
Nov 3, 2025Geary Richard SOption Excercise168058.68$ 98,575.65
Nov 3, 2025Geary Richard SOpen Market Sale168075.05$ 126,090.72
Oct 31, 2025Geary Richard SOption Excercise7092958.84$ 4,173,212.52
Oct 31, 2025Geary Richard SOpen Market Sale9092975.11$ 6,829,431.39
Oct 31, 2025LOSCALZO JOSEPHOption Excercise1600052.22$ 835,520.00
Oct 31, 2025LOSCALZO JOSEPHOpen Market Sale1600075.10$ 1,201,668.80
Oct 30, 2025WENDER JOSEPH HOpen Market Sale2800074.02$ 2,072,577.59
Oct 16, 2025Swayze EricOpen Market Sale5373.62$ 3,901.93
Oct 15, 2025Swayze EricOption Excercise1250.00$ 0.00
Oct 15, 2025PARSHALL B LYNNEOpen Market Sale500071.74$ 358,721.50
Oct 15, 2025Devers Shannon L.Option Excercise882033.00$ 291,060.00
Oct 15, 2025Devers Shannon L.Open Market Sale726373.06$ 530,637.50
Oct 14, 2025Birchler BrianOption Excercise2390053.77$ 1,285,103.00
Oct 14, 2025Birchler BrianOpen Market Sale2390072.13$ 1,723,987.11
Oct 6, 2025O'NEIL PATRICK R.Option Excercise1020052.87$ 539,274.00
Oct 6, 2025O'NEIL PATRICK R.Open Market Sale1344169.74$ 937,337.63
Oct 6, 2025Monia Brett POpen Market Sale43769.26$ 30,268.24
Oct 6, 2025Baroldi JosephOpen Market Sale162569.37$ 112,725.11
Oct 6, 2025Swayze EricOpen Market Sale684969.02$ 472,717.98
Oct 2, 2025O'NEIL PATRICK R.Option Excercise6466458.97$ 3,813,256.63
Oct 2, 2025O'NEIL PATRICK R.Open Market Sale6466467.69$ 4,377,054.43
Oct 2, 2025Baroldi JosephOption Excercise1500031.80$ 477,000.00
Oct 2, 2025Baroldi JosephOpen Market Sale1500068.01$ 1,020,210.00
Oct 1, 2025WENDER JOSEPH HOpen Market Sale1680065.50$ 1,100,384.88
Oct 1, 2025Swayze EricOption Excercise2711453.77$ 1,457,919.78
Oct 1, 2025Swayze EricOpen Market Sale2711466.16$ 1,793,744.13
Sep 30, 2025Geary Richard SOption Excercise5790053.77$ 3,113,283.00
Sep 30, 2025Geary Richard SOpen Market Sale5790065.24$ 3,777,668.13
Sep 30, 2025HOUGEN ELIZABETH LOption Excercise4980053.77$ 2,677,746.00
Sep 30, 2025HOUGEN ELIZABETH LOpen Market Sale4980065.26$ 3,249,733.86
Sep 29, 2025O'NEIL PATRICK R.Option Excercise2530056.78$ 1,436,534.00
Sep 29, 2025O'NEIL PATRICK R.Open Market Sale2530064.62$ 1,634,921.48
Sep 12, 2025O'NEIL PATRICK R.Option Excercise170056.78$ 96,526.00
Sep 12, 2025O'NEIL PATRICK R.Open Market Sale170064.58$ 109,787.19
Sep 9, 2025Baroldi JosephOption Excercise1195031.80$ 380,010.00
Sep 9, 2025Baroldi JosephOpen Market Sale1195062.16$ 742,838.29
Sep 9, 2025O'NEIL PATRICK R.Option Excercise2100060.69$ 1,274,580.00
Sep 9, 2025O'NEIL PATRICK R.Open Market Sale2100064.56$ 1,355,661.30
Sep 5, 2025Baroldi JosephOption Excercise25031.80$ 7,950.00
Sep 5, 2025Baroldi JosephOpen Market Sale25062.00$ 15,500.00
Sep 5, 2025BENNETT C FRANKOpen Market Sale600059.60$ 357,580.80
Sep 3, 2025Schneider EugeneOption Excercise1965853.77$ 1,057,010.66
Sep 3, 2025Schneider EugeneOpen Market Sale1965860.81$ 1,195,420.87
Sep 3, 2025Baroldi JosephOption Excercise3280031.80$ 1,043,040.00
Sep 3, 2025Baroldi JosephOpen Market Sale3280059.34$ 1,946,220.28
Sep 3, 2025BENNETT C FRANKOption Excercise5969155.44$ 3,309,232.50
Sep 3, 2025LOSCALZO JOSEPHOption Excercise1600024.42$ 390,720.00
Sep 3, 2025LOSCALZO JOSEPHOpen Market Sale1600060.15$ 962,371.20
Sep 3, 2025Monia Brett POption Excercise20381444.32$ 9,032,038.80
Sep 3, 2025Monia Brett POpen Market Sale20381460.32$ 12,294,703.00
Sep 3, 2025KLEIN JOSEPH IIIOption Excercise280000.00$ 0.00
Sep 3, 2025KLEIN JOSEPH IIIOpen Market Sale2800060.00$ 1,680,000.00
Sep 3, 2025KLEIN JOSEPH IIIOption Excercise280000.00$ 0.00
Sep 3, 2025KLEIN JOSEPH IIIOpen Market Sale2800060.00$ 1,680,000.00
Sep 3, 2025Devers Shannon L.Option Excercise316236.12$ 114,206.52
Sep 3, 2025Devers Shannon L.Open Market Sale316261.02$ 192,942.71
Sep 2, 2025WENDER JOSEPH HOpen Market Sale2800057.58$ 1,612,155.44
Sep 2, 2025PARSHALL B LYNNEOpen Market Sale2000050.91$ 1,018,297.50
Sep 2, 2025Geary Richard SOpen Market Sale1000050.37$ 503,671.00
Sep 2, 2025WENDER JOSEPH HOpen Market Sale2800057.58$ 1,612,155.44
Sep 2, 2025O'NEIL PATRICK R.Option Excercise8990045.10$ 4,054,726.00
Sep 2, 2025O'NEIL PATRICK R.Open Market Sale8990060.03$ 5,396,843.39
Sep 2, 2025BENNETT C FRANKOpen Market Sale3890959.14$ 2,301,263.58
Sep 2, 2025Swayze EricOpen Market Sale1113049.67$ 552,861.68
Aug 29, 2025O'NEIL PATRICK R.Other Aquisition33127.71$ 9,172.01
Aug 29, 2025Birchler BrianOther Aquisition16627.71$ 4,599.86
Aug 29, 2025Monia Brett POther Aquisition18927.71$ 5,237.19
Aug 29, 2025Geary Richard SOther Aquisition16527.71$ 4,572.15
Aug 29, 2025BENNETT C FRANKOther Aquisition21327.71$ 5,902.23
Aug 22, 2025Diaz Allene M.Open Market Sale142742.53$ 60,687.17
Aug 18, 2025BENNETT C FRANKOption Excercise1000032.60$ 326,000.00
Aug 18, 2025BENNETT C FRANKOpen Market Sale1000043.98$ 439,776.00
Aug 6, 2025PARSHALL B LYNNEOpen Market Sale500041.93$ 209,646.10
Aug 5, 2025Geary Richard SOpen Market Sale1000042.86$ 428,593.00
Aug 4, 2025Schneider EugeneOpen Market Sale954942.80$ 408,701.02
Jul 30, 2025Monia Brett POption Excercise243232.60$ 79,283.20
Jul 30, 2025Monia Brett POpen Market Sale243245.00$ 109,440.00
Jul 15, 2025Diaz Allene M.Option Excercise40790.00$ 0.00
Jul 15, 2025BERTHELSEN SPENCER ROption Excercise40790.00$ 0.00
Jul 15, 2025LOSCALZO JOSEPHOption Excercise40790.00$ 0.00
Jul 15, 2025YANG MICHAEL J.Option Excercise40790.00$ 0.00
Jul 15, 2025WENDER JOSEPH HOption Excercise40790.00$ 0.00
Jul 15, 2025PARSHALL B LYNNEOption Excercise40790.00$ 0.00
Jul 15, 2025HERMAN JOAN EOption Excercise40790.00$ 0.00
Jul 15, 2025Hayden Michael ROption Excercise40790.00$ 0.00
Jul 11, 2025Monia Brett POpen Market Sale116041.74$ 48,416.20
May 1, 2025Hayden Michael ROpen Market Purchase1500031.86$ 477,900.00
Apr 16, 2025Birchler BrianOpen Market Sale68028.37$ 19,291.60
Apr 16, 2025Jenne KyleOpen Market Sale301628.36$ 85,533.76
Apr 16, 2025Baroldi JosephOpen Market Sale392828.40$ 111,555.20
Apr 15, 2025Birchler BrianOption Excercise18750.00$ 0.00
Apr 15, 2025Jenne KyleOption Excercise122260.00$ 0.00
Apr 15, 2025Baroldi JosephOption Excercise108370.00$ 0.00