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IO
- As of 09/24/24, 09:56:09 PM: 164 Insider Transactions.
Sector:
Technology
Industry:
Scientific & Technical Instruments
Prev Close:
$6.12
Avg Vol(3m):
104,975
P/E:
0.00
EPS:
-0.45
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Insider Transactions for IO
Buy/Sell*
Filed Date
Subject
Symbol
Acquirer
Pct Owned
Details
B
2020-02-14 17:05:05.0
ION GEOPHYSICAL CORP
IO
Footprints Asset Management & Research
7.24%
view
S
2020-02-14 12:26:32.0
ION GEOPHYSICAL CORP
IO
Gates Capital Management
3.2%
view
B
2020-02-13 10:48:05.0
ION GEOPHYSICAL CORP
IO
RENAISSANCE TECHNOLOGIES LLC
7.36%
view
B
2019-02-14 12:04:50.0
ION GEOPHYSICAL CORP
IO
Gates Capital Management
8.7%
view
S
2019-02-14 11:40:32.0
ION GEOPHYSICAL CORP
IO
Footprints Asset Management & Research
4.85%
view
B
2019-02-12 16:18:00.0
ION GEOPHYSICAL CORP
IO
RENAISSANCE TECHNOLOGIES LLC
7.32%
view
S
2019-01-31 14:58:34.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
4.9%
view
S
2019-01-31 10:36:10.0
ION GEOPHYSICAL CORP
IO
Bagaria Rajay
5.02%
view
S
2019-01-31 10:31:29.0
ION GEOPHYSICAL CORP
IO
Wasserstein Debt Opportunities Management
4.95%
view
S
2019-01-15 10:49:50.0
ION GEOPHYSICAL CORP
IO
Empery Asset Management
4.99%
view
B
2018-10-26 17:27:00.0
ION GEOPHYSICAL CORP
IO
Wasserstein Debt Opportunities Management
5.23%
view
B
2018-08-20 15:53:11.0
ION GEOPHYSICAL CORP
IO
Bagaria Rajay
5.05%
view
B
2018-02-22 10:49:15.0
ION GEOPHYSICAL CORP
IO
Empery Asset Management
5.25%
view
S
2018-02-12 15:23:03.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
7.8%
view
S
2017-01-10 09:38:15.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
10.6%
view
B
2017-01-05 15:28:32.0
ION GEOPHYSICAL CORP
IO
Footprints Asset Management & Research
5.97%
view
B
2016-11-07 15:13:02.0
ION GEOPHYSICAL CORP
IO
LAPEYRE JAMES M JR
10.0%
view
B
2016-10-05 16:56:03.0
ION GEOPHYSICAL CORP
IO
LAPEYRE JAMES M JR
9.0%
view
B
2016-09-12 08:01:55.0
ION GEOPHYSICAL CORP
IO
LAPEYRE JAMES M JR
7.8%
view
S
2016-02-10 09:39:41.0
ION GEOPHYSICAL CORP
IO
VANGUARD GROUP INC
3.87%
view
S
2016-02-05 14:44:12.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
17.5%
view
S
2015-12-10 11:01:25.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
4.7%
view
S
2015-12-08 13:05:31.0
ION GEOPHYSICAL CORP
IO
LAPEYRE JAMES M JR
4.0%
view
B
2015-02-10 13:03:02.0
ION GEOPHYSICAL CORP
IO
VANGUARD GROUP INC
5.17%
view
B
2015-02-03 15:33:52.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
19.4%
view
S
2015-01-26 17:17:41.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
7.3%
view
S
2014-03-11 17:25:33.0
ION GEOPHYSICAL CORP
IO
VILLERE ST DENIS J & CO LLC
2.14%
view
S
2014-03-10 13:51:04.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & COMPANY
4.89%
view
S
2014-02-14 09:32:07.0
ION GEOPHYSICAL CORP
IO
WELLINGTON MANAGEMENT CO LLP
0.22%
view
B
2014-02-05 14:11:57.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
19.4%
view
B
2014-01-29 16:22:20.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
7.8%
view
S
2014-01-28 11:44:01.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & COMPANY
5.09%
view
B
2014-01-10 17:01:56.0
ION GEOPHYSICAL CORP
IO
VILLERE ST DENIS J & CO LLC
6.49%
view
B
2013-12-09 10:06:37.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
18.7%
view
B
2013-06-10 12:58:38.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
10.5%
view
S
2013-03-29 13:21:44.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & COMPANY
5.88%
view
S
2013-02-14 12:29:55.0
ION GEOPHYSICAL CORP
IO
WELLINGTON MANAGEMENT CO LLP
5.75%
view
S
2013-02-13 16:09:19.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & COMPANY
5.89%
view
B
2013-02-13 13:04:33.0
ION GEOPHYSICAL CORP
IO
Invesco Ltd
9.7%
view
B
2013-02-06 09:55:56.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
6.25%
view
B
2013-01-08 15:46:57.0
ION GEOPHYSICAL CORP
IO
VILLERE ST DENIS J & CO LLC
5.88%
view
S
2012-08-10 11:06:48.0
ION GEOPHYSICAL CORP
IO
FMR LLC
0.178%
view
B
2012-05-11 10:38:56.0
ION GEOPHYSICAL CORP
IO
VILLERE ST DENIS J & CO LLC
5.12%
view
S
2012-04-10 08:44:10.0
ION GEOPHYSICAL CORP
IO
FMR LLC
5.242%
view
B
2012-02-14 12:17:40.0
ION GEOPHYSICAL CORP
IO
FMR LLC
12.121%
view
B
2012-02-14 11:22:06.0
ION GEOPHYSICAL CORP
IO
WELLINGTON MANAGEMENT CO LLP
6.57%
view
S
2012-02-13 12:22:12.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
6.23%
view
B
2012-01-24 17:41:59.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & CO
6.12%
view
S
2011-02-14 13:14:16.0
ION GEOPHYSICAL CORP
IO
FLETCHER ASSET MANAGEMENT INC
4.0%
view
B
2011-02-10 09:19:20.0
ION GEOPHYSICAL CORP
IO
FMR LLC
10.148%
view
S
2011-02-04 15:44:48.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
6.8%
view
S
2011-01-20 09:53:57.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & CO
5.73%
view
B
2010-04-01 14:35:07.0
ION GEOPHYSICAL CORP
IO
BGP Inc
16.6%
view
B
2010-02-16 07:13:55.0
ION GEOPHYSICAL CORP
IO
FLETCHER ASSET MANAGEMENT INC
9.0%
view
B
2010-01-20 17:48:58.0
ION GEOPHYSICAL CORP
IO
WELLS FARGO & CO
7.07%
view
B
2010-01-08 12:05:48.0
ION GEOPHYSICAL CORP
IO
BlackRock Inc
10.17%
view
S
2009-09-01 16:46:40.0
ION GEOPHYSICAL CORP
IO
GW CAPITAL INC
n/a
view
S
2009-08-07 15:53:12.0
ION GEOPHYSICAL CORP
IO
GW CAPITAL INC
n/a
view
B
2009-05-08 15:32:13.0
ION GEOPHYSICAL CORP
IO
GW CAPITAL INC
n/a
view
B
2009-02-17 11:10:00.0
ION GEOPHYSICAL CORP
IO
FLETCHER ASSET MANAGEMENT INC
8.9%
view
S
2009-02-10 12:03:19.0
ION GEOPHYSICAL CORP
IO
NEUBERGER BERMAN INC
1.5%
view
B
2009-02-10 11:09:04.0
ION GEOPHYSICAL CORP
IO
NEUBERGER BERMAN INC
7.934%
view
S
2008-02-14 13:38:47.0
ION GEOPHYSICAL CORP
IO
CNH PARTNERS LLC
0.0%
view
S
2008-02-14 09:18:38.0
ION GEOPHYSICAL CORP
IO
Clearbridge Advisors
6.59%
view
S
2008-02-14 06:34:02.0
ION GEOPHYSICAL CORP
IO
FLETCHER ASSET MANAGEMENT INC
6.4%
view
B
2008-02-12 17:26:28.0
ION GEOPHYSICAL CORP
IO
NEUBERGER BERMAN INC
7.355%
view
S
2008-02-05 10:36:04.0
ION GEOPHYSICAL CORP
IO
ROYCE & ASSOCIATES LLC
2.59%
view
S
2007-02-14 15:35:23.0
INPUT OUTPUT INC
IO
FLETCHER ASSET MANAGEMENT INC
7.8%
view
B
2007-02-08 11:34:01.0
INPUT OUTPUT INC
IO
Clearbridge Advisors
7.41%
view
S
2007-02-07 16:41:38.0
INPUT OUTPUT INC
IO
CNH PARTNERS LLC
6.2%
view
S
2007-02-07 16:35:22.0
INPUT OUTPUT INC
IO
WELLS FARGO & CO
5.48%
view
S
2007-01-22 12:51:09.0
INPUT OUTPUT INC
IO
ROYCE & ASSOCIATES LLC
5.58%
view
S
2006-11-08 13:07:49.0
INPUT OUTPUT INC
IO
ROYCE & ASSOCIATES LLC
6.78%
view
B
2006-03-03 00:00:00.0
INPUT OUTPUT INC
IO
WELLS FARGO & CO
7.02%
view
S
2006-02-15 00:00:00.0
INPUT OUTPUT INC
IO
FRIESS ASSOCIATES LLC
n/a
view
B
2006-02-14 00:00:00.0
INPUT OUTPUT INC
IO
FLETCHER ASSET MANAGEMENT INC
9.0%
view
B
2006-01-31 00:00:00.0
INPUT OUTPUT INC
IO
CNH PARTNERS LLC
6.21%
view
S
2006-01-25 00:00:00.0
INPUT OUTPUT INC
IO
ROYCE & ASSOCIATES LLC
12.6%
view
B
2005-07-14 00:00:00.0
INPUT OUTPUT INC
IO
CNH PARTNERS LLC
5.22%
view
S
2005-03-23 00:00:00.0
INPUT OUTPUT INC
IO
LAITRAM LLC
10.0%
view
B
2005-03-23 00:00:00.0
INPUT OUTPUT INC
IO
LAPEYRE JAMES M JR
11.5%
view
S
2005-02-14 00:00:00.0
INPUT OUTPUT INC
IO
DARUMA ASSET MANAGEMENT INC
4.2%
view
B
2005-02-14 00:00:00.0
INPUT OUTPUT INC
IO
FRIESS ASSOCIATES LLC
n/a
view
B
2005-02-11 00:00:00.0
INPUT OUTPUT INC
IO
STRONG CAPITAL MANAGEMENT INC ET AL
5.1%
view
S
2005-02-10 00:00:00.0
INPUT OUTPUT INC
IO
STEINBERG ASSET MANAGEMENT LLC
3.51%
view
S
2005-02-09 00:00:00.0
INPUT OUTPUT INC
IO
DIMENSIONAL FUND ADVISORS INC
2.9%
view
B
2005-01-28 00:00:00.0
INPUT OUTPUT INC
IO
ROYCE & ASSOCIATES LLC
14.39%
view
S
2004-08-05 00:00:00.0
INPUT OUTPUT INC
IO
PRIMECAP MANAGEMENT CO
4.78%
view
S
2004-07-02 00:00:00.0
INPUT OUTPUT INC
IO
LAITRAM LLC
10.1%
view
S
2004-07-02 00:00:00.0
INPUT OUTPUT INC
IO
LAPEYRE JAMES M JR
11.3%
view
S
2004-05-11 00:00:00.0
INPUT OUTPUT INC
IO
PRIMECAP MANAGEMENT CO
5.11%
view
S
2004-05-10 00:00:00.0
INPUT OUTPUT INC
IO
MORGAN STANLEY
0.03%
view
B
2004-02-17 00:00:00.0
INPUT OUTPUT INC
IO
MORGAN STANLEY
6.27%
view
B
2004-02-17 00:00:00.0
INPUT OUTPUT INC
IO
BARCLAYS GLOBAL INVESTORS NA
4.77%
view
B
2004-02-12 00:00:00.0
INPUT OUTPUT INC
IO
DARUMA ASSET MANAGEMENT INC
6.3%
view
S
2004-02-06 00:00:00.0
INPUT OUTPUT INC
IO
DIMENSIONAL FUND ADVISORS INC
5.54%
view
S
2004-02-06 00:00:00.0
INPUT OUTPUT INC
IO
STEINBERG PRIEST & SLOANE CAPITAL MANAGEMENT LLC
5.46%
view
S
2004-02-05 00:00:00.0
INPUT OUTPUT INC
IO
ICM ASSET MANAGEMENT INC
3.6%
view
B
2004-02-03 00:00:00.0
INPUT OUTPUT INC
IO
ROYCE & ASSOCIATES LLC
12.31%
view
B
2004-01-13 00:00:00.0
INPUT OUTPUT INC
IO
LAITRAM LLC
13.5%
view
B
2004-01-13 00:00:00.0
INPUT OUTPUT INC
IO
LAPEYRE JAMES M JR
15.3%
view
B
2003-06-10 00:00:00.0
INPUT OUTPUT INC
IO
PRIMECAP MANAGEMENT CO
6.51%
view
S
2020-02-12 11:46:37.0
HOLOGIC INC
HOLX
PARNASSUS INVESTMENTS
2.29%
view
B
2020-02-11 19:14:39.0
HOLOGIC INC
HOLX
VANGUARD GROUP INC
11.24%
view
S
2020-02-05 11:45:39.0
HOLOGIC INC
HOLX
Capital World Investors
4.0%
view
S
2019-02-14 13:48:08.0
HOLOGIC INC
HOLX
Capital World Investors
9.4%
view
B
2019-02-13 18:12:17.0
HOLOGIC INC
HOLX
PARNASSUS INVESTMENTS
5.2%
view
S
2019-02-12 10:41:14.0
HOLOGIC INC
HOLX
VANGUARD GROUP INC
10.42%
view
B
2019-02-04 16:44:20.0
HOLOGIC INC
HOLX
BlackRock Inc
6.5%
view
B
2018-02-14 13:58:09.0
HOLOGIC INC
HOLX
Capital Research Global Investors
6.2%
view
S
2018-02-13 17:32:59.0
HOLOGIC INC
HOLX
VANGUARD GROUP INC
10.11%
view
B
2018-02-08 12:03:50.0
HOLOGIC INC
HOLX
WELLINGTON MANAGEMENT GROUP LLP
7.1%
view
B
2017-02-13 17:23:45.0
HOLOGIC INC
HOLX
Capital Research Global Investors
4.8%
view
B
2017-01-23 17:46:33.0
HOLOGIC INC
HOLX
BlackRock Inc
7.6%
view
B
2016-11-10 10:28:50.0
HOLOGIC INC
HOLX
Capital World Investors
10.08%
view
S
2016-06-10 14:22:21.0
HOLOGIC INC
HOLX
ICAHN CARL C
3.61%
view
S
2016-04-04 16:58:14.0
HOLOGIC INC
HOLX
ICAHN CARL C
6.75%
view
S
2016-03-14 16:50:34.0
HOLOGIC INC
HOLX
ICAHN CARL C
n/a
view
S
2016-03-04 08:36:18.0
HOLOGIC INC
HOLX
ICAHN CARL C
4.5%
view
B
2016-02-12 17:36:25.0
HOLOGIC INC
HOLX
Capital Research Global Investors
5.5%
view
S
2016-02-11 12:54:03.0
HOLOGIC INC
HOLX
BlackRock Inc
7.0%
view
S
2015-08-04 16:01:27.0
HOLOGIC INC
HOLX
Capital World Investors
11.5%
view
B
2015-02-13 15:26:59.0
HOLOGIC INC
HOLX
Capital Research Global Investors
12.2%
view
S
2015-02-10 11:24:31.0
HOLOGIC INC
HOLX
VANGUARD GROUP INC
7.1%
view
S
2014-10-03 17:25:48.0
HOLOGIC INC
HOLX
RELATIONAL INVESTORS LLC
3.08%
view
B
2014-02-13 17:28:49.0
HOLOGIC INC
HOLX
GROWTH FUND OF AMERICA
12.0%
view
B
2014-02-12 21:38:32.0
HOLOGIC INC
HOLX
Capital Research Global Investors
12.1%
view
B
2013-12-20 17:22:52.0
HOLOGIC INC
HOLX
RELATIONAL INVESTORS LLC
n/a
view
S
2013-12-10 11:48:58.0
HOLOGIC INC
HOLX
Capital World Investors
n/a
view
S
2013-11-21 07:55:01.0
HOLOGIC INC
HOLX
ICAHN CARL C
12.63%
view
B
2013-02-14 12:22:17.0
HOLOGIC INC
HOLX
WELLINGTON MANAGEMENT CO LLP
12.2%
view
B
2013-02-01 11:42:22.0
HOLOGIC INC
HOLX
BlackRock Inc
13.99%
view
S
2012-02-14 11:19:27.0
HOLOGIC INC
HOLX
WELLINGTON MANAGEMENT CO LLP
11.8%
view
S
2012-01-10 14:50:25.0
HOLOGIC INC
HOLX
BlackRock Inc
0.0%
view
S
2011-02-11 13:42:38.0
HOLOGIC INC
HOLX
Capital Research Global Investors
12.2%
view
B
2011-01-10 12:46:33.0
HOLOGIC INC
HOLX1
BlackRock Inc
10.5%
view
B
2010-02-12 17:22:01.0
HOLOGIC INC
HOLX1
HealthCor Management
7.5%
view
B
2010-01-08 12:03:46.0
HOLOGIC INC
HOLX1
BlackRock Inc
5.5%
view
B
2009-02-12 20:46:47.0
HOLOGIC INC
HOLX1
Capital Research Global Investors
7.3%
view
B
2009-02-10 08:25:24.0
HOLOGIC INC
HOLX1
BlackRock Inc
5.1%
view
B
2008-06-10 07:32:32.0
HOLOGIC INC
HOLX1
AXA FINANCIAL INC
6.99%
view
B
2008-02-14 07:24:42.0
HOLOGIC INC
HOLX1
AXA FINANCIAL INC
13.4%
view
S
2007-09-10 10:04:21.0
HOLOGIC INC
HOLX1
FMR CORP
n/a
view
S
2007-02-14 16:48:37.0
HOLOGIC INC
HOLX1
FMR CORP
n/a
view
S
2006-01-13 00:00:00.0
HOLOGIC INC
HOLX
AMARANTH LLC
1.4%
view
B
2005-02-14 00:00:00.0
HOLOGIC INC
HOLX
AMARANTH LLC
8.6%
view
B
2004-02-13 00:00:00.0
HOLOGIC INC
HOLX
KAHN BROTHERS & CO INC
n/a
view
S
2003-02-06 00:00:00.0
HOLOGIC INC
HOLX
DIMENSIONAL FUND ADVISORS INC
n/a
view
S
2002-02-12 00:00:00.0
HOLOGIC INC
HOLX
DIMENSIONAL FUND ADVISORS INC
n/a
view
S
2001-03-05 00:00:00.0
HOLOGIC INC
HOLX
PRINCIPAL LIFE INSURANCE CO
0.0%
view
B
2001-01-31 00:00:00.0
HOLOGIC INC
HOLX
KAHN THOMAS GRAHAM
7.49%
view
B
2001-01-10 00:00:00.0
HOLOGIC INC
HOLX
INVISTA CAPITAL MANAGEMENT LLC
5.7%
view
S
2000-02-10 00:00:00.0
HOLOGIC INC
HOLX
AMVESCAP PLC
0.0%
view
B
2000-02-04 00:00:00.0
HOLOGIC INC
HOLX
DIMENSIONAL FUND ADVISORS INC
n/a
view
B
1999-11-18 00:00:00.0
HOLOGIC INC
HOLX
EQSF ADVISERS INC ET AL
9.1%
view
B
1999-02-11 00:00:00.0
HOLOGIC INC
HOLX
MASSACHUSETTS FINANCIAL SERVICES CO
5.02%
view
B
1999-02-04 00:00:00.0
HOLOGIC INC
HOLX
EQSF ADVISERS INC ET AL
9.49%
view
B
1998-02-12 00:00:00.0
HOLOGIC INC
HOLX
MELLON BANK CORP
6.34%
view
B
1998-01-15 00:00:00.0
HOLOGIC INC
HOLX
ELLENBOGEN S DAVID
7.3%
view
S
1997-02-14 00:00:00.0
HOLOGIC INC
HOLX
CAPITAL GROUP COMPANIES INC ET AL
0.0%
view
B
1997-02-11 00:00:00.0
HOLOGIC INC
HOLX
ALGER FRED MANAGEMENT INC
9.02%
view
S
1996-02-14 00:00:00.0
HOLOGIC INC
HOLX
ELLENBOGEN S DAVID
6.76%
view
B
1996-02-12 00:00:00.0
HOLOGIC INC
HOLX
CAPITAL GROUP COMPANIES INC ET AL
6.3%
view
B
1996-02-12 00:00:00.0
HOLOGIC INC
HOLX
FMR CORP
n/a
view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.