KNAFEL SIDNEY R

CIK 00009240394 companiesNEW YORK, NY

SEC Profile

Transactions

Companies

Filings

CIK

0000924039

Recent Transactions

41 trades

Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2019-12-30$36.78/sh+4,908→ 78,588 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2018-12-28$30.16/sh+5,116→ 73,681 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2017-12-29$33.58/sh+5,778→ 68,565 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2016-12-30$31.38/sh+5,612→ 62,787 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2015-12-30$30.81/sh+2,057→ 57,175 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2014-12-30$35.21/sh+4,988→ 55,118 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2013-12-30$34.48/sh+2,881→ 50,184 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2013-01-31$29.06/sh+957→ 47,303 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2012-12-28$28.14/sh+2,196→ 46,346 total
Award
VirtualScopics, Inc.
restricted stock unit
2012-02-27$1.21/sh+13,339→ 412,283 total
Award
VirtualScopics, Inc.
stock option
2012-02-27$1.21/sh+3,750→ 387,694 total
Award
VirtualScopics, Inc.
stock option
2012-02-27$1.21/sh+3,750→ 395,194 total
Award
VirtualScopics, Inc.
stock option
2012-02-27$1.21/sh+3,750→ 391,444 total
Award
VirtualScopics, Inc.
stock option
2012-02-27$1.21/sh+3,750→ 398,944 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2011-12-23$25.48/sh+849→ 44,150 total
Exercise/Conversion
VirtualScopics, Inc.
Common Stock
2011-08-15$0.74/sh+36,000→ 455,742 total
Tax Payment
VirtualScopics, Inc.
Common Stock
2011-08-15$1.29/sh−20,651→ 435,091 total
Exercise/Conversion
VirtualScopics, Inc.
Stock Option
2011-08-15−36,000→ 786,804 total
Award
VirtualScopics, Inc.
stock option
2011-03-02$1.99/sh+2,500→ 1,235,046 total
Award
VirtualScopics, Inc.
Restricted Stock Unit
2011-03-02$1.99/sh+12,318→ 1,232,546 total
Award
VirtualScopics, Inc.
stock option
2011-03-02$1.99/sh+2,500→ 1,237,546 total
Award
VirtualScopics, Inc.
stock option
2011-03-02$1.99/sh+2,500→ 1,240,046 total
Award
VirtualScopics, Inc.
stock option
2011-03-02$1.99/sh+2,500→ 1,242,546 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2010-12-23$26.01/sh+704→ 43,301 total
Purchase
VirtualScopics, Inc.
stock option
2010-05-10$1.28/sh+2,930→ 105,155 total
Purchase
VirtualScopics, Inc.
stock option
2010-05-10$1.28/sh+2,930→ 102,225 total
Purchase
VirtualScopics, Inc.
stock option
2010-05-10$1.28/sh+2,929→ 111,014 total
Purchase
VirtualScopics, Inc.
stock option
2010-05-10$1.28/sh+2,930→ 108,085 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2009-12-28$22.86/sh+642→ 42,597 total
Award
VirtualScopics, Inc.
Restricted Stock Unit
2009-11-11$1.16/sh+37,505→ 121,949 total
Award
VirtualScopics, Inc.
STOCK OPTION
2009-11-04$1.20/sh+12,500→ 348,402 total
Disposition to Issuer
VirtualScopics, Inc.
STOCK OPTION
2009-11-04$3.03/sh−25,000→ 335,902 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2008-12-26$15.55/sh+1,154→ 41,956 total
Award
VirtualScopics, Inc.
stock option
2006-08-10$3.03/sh+6,250→ 66,421 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2005-12-22$34.81/sh+1,634→ 32,436 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2005-03-10$30.94/sh+270→ 30,802 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
Common Stock
2004-12-23$31.02/sh+861→ 30,532 total
Disposition from Tender
BIORELIANCE CORP
Common Stock
2004-02-06$48.00/sh−1,217,409→ 0 total
Disposition from Tender
BIORELIANCE CORP
Common Stock
2004-02-06$48.00/sh−1,832,966→ 0 total
Other
GENERAL AMERICAN INVESTORS CO INC$GAM
General American (Common Stock)
2003-12-23$29.07/sh+501→ 29,671 total
Award
INSIGHT COMMUNICATIONS CO INC
Class B Common Stock
2003-11-06+68,000→ 68,000 total

Companies

Recent Filings

Address

810 SEVENTH AVENUE

NEW YORK, NY, US 10019

View on SEC.gov