SEC CIK 1278861
TSINGOS CHRISTINE A
Reported ownership across 3 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| ONTOview stock → | 42,918 | 2024-05-22 |
| VREXview stock → | 42,655 | 2026-02-09 |
| BIOview stock → | 6,683.1 | 2018-12-14 |
Position History — BIO
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — BIO
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2018-12-14 | Open-market sale | 1,411 | $248.00 | 6,683.1 |
| 2018-09-11 | Option exercise (derivative) | 160 | $0.00 | 0 |
| 2018-09-11 | Option exercise (derivative) | 500 | $0.00 | 1,000 |
| 2018-09-11 | Option exercise | 660 | $0.00 | 8,323.1 |
| 2018-09-11 | Tax withholding | 229 | $308.37 | 8,094.1 |
| 2018-09-10 | Option exercise (derivative) | 400 | $0.00 | 400 |
| 2018-09-10 | Option exercise | 400 | $0.00 | 7,802.1 |
| 2018-09-10 | Tax withholding | 139 | $308.00 | 7,663.1 |
| 2018-09-07 | Option exercise (derivative) | 500 | $0.00 | 1,500 |
| 2018-09-07 | Option exercise | 500 | $0.00 | 7,575.1 |
| 2018-09-07 | Tax withholding | 173 | $313.74 | 7,402.1 |
| 2018-09-05 | Option exercise (derivative) | 600 | $0.00 | 2,400 |
| 2018-09-05 | Option exercise | 600 | $0.00 | 7,283.1 |
| 2018-09-05 | Tax withholding | 208 | $315.50 | 7,075.1 |
| 2018-09-04 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2018-09-04 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2017-12-14 | Option exercise (derivative) | 1,000 | $0.00 | 1,500 |
| 2017-12-14 | Option exercise (derivative) | 1,300 | $0.00 | 0 |
| 2017-12-14 | Option exercise (derivative) | 1,280 | $0.00 | 640 |
| 2017-12-14 | Option exercise (derivative) | 800 | $0.00 | 800 |
| 2017-12-14 | Option exercise | 600 | $98.04 | 7,283.1 |
| 2017-12-14 | Option exercise | 1,280 | $117.00 | 9,863.1 |
| 2017-12-14 | Option exercise | 1,000 | $139.56 | 11,663.1 |
| 2017-12-14 | Option exercise | 800 | $119.54 | 10,663.1 |
| 2017-12-14 | Option exercise | 1,300 | $107.32 | 8,583.1 |
| 2017-12-14 | Open-market sale | 4,980 | $249.40 | 6,683.1 |
| 2017-09-12 | Option exercise (derivative) | 200 | $0.00 | 0 |
| 2017-09-12 | Tax withholding | 76 | $218.04 | 6,683.1 |
| 2017-09-12 | Option exercise | 200 | $0.00 | 6,759.1 |
| 2017-09-11 | Option exercise (derivative) | 160 | $0.00 | 160 |
| 2017-09-11 | Option exercise (derivative) | 500 | $0.00 | 1,500 |
| 2017-09-11 | Tax withholding | 249 | $218.86 | 6,559.1 |
| 2017-09-11 | Option exercise | 660 | $0.00 | 6,808.1 |
| 2017-09-10 | Option exercise (derivative) | 400 | $0.00 | 800 |
| 2017-09-10 | Option exercise | 400 | $0.00 | 6,299.1 |
| 2017-09-10 | Tax withholding | 151 | $218.42 | 6,148.1 |
| 2017-09-07 | Option exercise (derivative) | 500 | $0.00 | 2,000 |
| 2017-09-07 | Option exercise | 500 | $0.00 | 6,087.1 |
| 2017-09-07 | Tax withholding | 188 | $215.44 | 5,899.1 |
| 2017-09-05 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2017-09-05 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2016-11-04 | Option exercise (derivative) | 200 | $0.00 | 0 |
| 2016-11-04 | Tax withholding | 76 | $164.74 | 5,587.1 |
| 2016-11-04 | Option exercise | 200 | $0.00 | 5,663.1 |
| 2016-09-12 | Option exercise (derivative) | 200 | $0.00 | 200 |
| 2016-09-12 | Option exercise | 200 | $0.00 | 5,539.1 |
| 2016-09-12 | Tax withholding | 76 | $159.32 | 5,463.1 |
| 2016-09-11 | Option exercise (derivative) | 500 | $0.00 | 2,000 |
| 2016-09-11 | Option exercise (derivative) | 160 | $0.00 | 320 |
| 2016-09-11 | Tax withholding | 249 | $157.71 | 5,339.1 |
| 2016-09-11 | Option exercise | 660 | $0.00 | 5,588.1 |
| 2016-09-10 | Option exercise (derivative) | 400 | $0.00 | 1,200 |
| 2016-09-10 | Tax withholding | 151 | $157.71 | 4,928.1 |
| 2016-09-10 | Option exercise | 400 | $0.00 | 5,079.1 |
| 2016-09-07 | Grant / award (derivative) | 2,500 | $0.00 | 2,500 |
| 2016-09-07 | Grant / award (derivative) | 2,500 | $0.00 | 2,500 |
| 2016-03-14 | Option exercise (derivative) | 1,280 | $0.00 | 1,920 |
| 2016-03-14 | Option exercise (derivative) | 400 | $0.00 | 1,600 |
| 2016-03-14 | Option exercise (derivative) | 600 | $0.00 | 0 |
| 2016-03-14 | Option exercise (derivative) | 2,400 | $0.00 | 600 |
| 2016-03-14 | Option exercise (derivative) | 1,950 | $0.00 | 1,300 |
| 2016-03-14 | Option exercise | 1,950 | $107.32 | 6,629.1 |
| 2016-03-14 | Option exercise | 200 | $84.57 | 4,879.1 |
| 2016-03-14 | Option exercise | 2,400 | $98.04 | 7,079.1 |
| 2016-03-14 | Option exercise | 400 | $119.54 | 5,079.1 |
| 2016-03-14 | Option exercise | 1,280 | $117.00 | 5,959.1 |
| 2016-03-14 | Open-market sale | 1,280 | $137.64 | 4,679.1 |
| 2015-11-04 | Option exercise (derivative) | 200 | $0.00 | 200 |
| 2015-11-04 | Option exercise | 200 | $0.00 | 4,755.1 |
| 2015-11-04 | Tax withholding | 76 | $140.86 | 4,679.1 |
| 2015-09-14 | Open-market sale | 137 | $139.11 | 4,555.1 |
| 2015-09-12 | Option exercise (derivative) | 200 | $0.00 | 400 |
| 2015-09-12 | Option exercise | 200 | $0.00 | 4,692.1 |
| 2015-09-11 | Grant / award (derivative) | 2,500 | $0.00 | 2,500 |
| 2015-09-11 | Option exercise (derivative) | 160 | $0.00 | 480 |
| 2015-09-11 | Grant / award (derivative) | 2,500 | $0.00 | 2,500 |
| 2015-09-11 | Open-market sale | 152 | $137.50 | 4,332.1 |
| 2015-09-11 | Option exercise | 160 | $0.00 | 4,492.1 |
| 2015-09-10 | Option exercise (derivative) | 400 | $0.00 | 1,600 |
| 2015-09-10 | Option exercise | 400 | $0.00 | 4,484.1 |
| 2015-09-09 | Open-market sale | 76 | $139.01 | 4,084.1 |
| 2015-09-08 | Option exercise (derivative) | 200 | $0.00 | 0 |
| 2015-09-08 | Option exercise | 200 | $0.00 | 4,160.1 |
| 2015-03-12 | Option exercise (derivative) | 2,400 | $0.00 | 600 |
| 2015-03-12 | Option exercise (derivative) | 3,000 | $0.00 | 0 |
| 2015-03-12 | Option exercise | 2,400 | $84.57 | 9,360.1 |
| 2015-03-12 | Open-market sale | 5,400 | $135.94 | 3,960.1 |
| 2015-03-12 | Option exercise | 3,000 | $88.00 | 6,960.1 |
| 2014-11-20 | Open-market sale | 1,326 | $115.85 | 3,960.1 |
| 2014-11-12 | Option exercise (derivative) | 1,000 | $0.00 | 0 |
| 2014-11-12 | Option exercise | 3,000 | $74.27 | 12,286.1 |
| 2014-11-12 | Open-market sale | 7,000 | $112.22 | 5,286.1 |
| 2014-11-12 | Option exercise | 1,000 | $62.47 | 6,286.1 |
| 2014-11-12 | Option exercise | 3,000 | $75.32 | 9,286.1 |
| 2014-11-04 | Option exercise (derivative) | 200 | $0.00 | 400 |
| 2014-11-04 | Option exercise | 200 | $0.00 | 5,361.1 |
| 2014-11-04 | Tax withholding | 75 | $111.80 | 5,286.1 |
| 2014-09-12 | Option exercise (derivative) | 200 | $0.00 | 600 |
| 2014-09-12 | Tax withholding | 75 | $117.81 | 5,161.1 |
| 2014-09-12 | Option exercise | 200 | $0.00 | 5,236.1 |
| 2014-09-11 | Option exercise (derivative) | 160 | $0.00 | 640 |
| 2014-09-11 | Option exercise | 160 | $0.00 | 5,096.1 |
| 2014-09-11 | Tax withholding | 60 | $118.76 | 5,036.1 |
| 2014-09-10 | Grant / award (derivative) | 2,000 | $0.00 | 2,000 |
| 2014-09-10 | Grant / award (derivative) | 2,000 | $0.00 | 2,000 |
| 2014-09-08 | Option exercise (derivative) | 200 | $0.00 | 200 |
| 2014-09-08 | Option exercise | 200 | $0.00 | 5,011.1 |
| 2014-09-08 | Tax withholding | 75 | $120.24 | 4,936.1 |
| 2014-06-10 | Option exercise (derivative) | 200 | $0.00 | 0 |
| 2014-06-10 | Tax withholding | 75 | $121.96 | 4,811.1 |
| 2014-06-10 | Option exercise | 200 | $0.00 | 4,886.1 |
| 2013-11-04 | Option exercise (derivative) | 200 | $0.00 | 600 |
| 2013-11-04 | Option exercise | 200 | $0.00 | 4,686.1 |
| 2013-09-12 | Option exercise (derivative) | 200 | $0.00 | 800 |
| 2013-09-12 | Option exercise | 200 | $0.00 | 4,486.1 |
| 2013-09-11 | Grant / award (derivative) | 800 | $0.00 | 800 |
| 2013-09-11 | Grant / award (derivative) | 3,200 | $0.00 | 3,200 |
| 2013-09-08 | Option exercise (derivative) | 200 | $0.00 | 400 |
| 2013-09-08 | Option exercise | 200 | $0.00 | 4,286.1 |
| 2013-06-10 | Option exercise (derivative) | 200 | $0.00 | 200 |
| 2013-06-10 | Option exercise | 200 | $0.00 | 4,086.1 |
| 2012-11-04 | Option exercise (derivative) | 200 | $0.00 | 800 |
| 2012-11-04 | Option exercise | 200 | $0.00 | 3,886.1 |
| 2012-09-12 | Grant / award (derivative) | 1,000 | $0.00 | 1,000 |
| 2012-09-12 | Grant / award (derivative) | 3,250 | $0.00 | 3,250 |
| 2012-09-10 | Open-market sale | 77 | $103.49 | 3,686.1 |
| 2012-09-08 | Option exercise (derivative) | 200 | $0.00 | 600 |
| 2012-09-08 | Option exercise | 200 | $0.00 | 3,763.1 |
| 2012-06-12 | Open-market sale | 74 | $96.51 | 3,563.1 |
| 2012-06-11 | Open-market sale | 74 | $96.49 | 3,637.1 |
| 2012-06-10 | Option exercise (derivative) | 200 | $0.00 | 400 |
| 2012-06-10 | Option exercise | 200 | $0.00 | 3,711.1 |
| 2011-11-04 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2011-11-04 | Grant / award (derivative) | 1,000 | $0.00 | 1,000 |
| 2011-09-09 | Open-market sale | 75 | $94.85 | 3,511.1 |
| 2011-09-08 | Option exercise (derivative) | 200 | $0.00 | 800 |
| 2011-09-08 | Option exercise | 200 | $0.00 | 3,586.1 |
| 2011-06-14 | Open-market sale | 75 | $117.53 | 3,386.1 |
| 2011-06-13 | Open-market sale | 74 | $117.30 | 3,461.1 |
| 2011-06-10 | Option exercise (derivative) | 200 | $0.00 | 600 |
| 2011-06-10 | Option exercise | 200 | $0.00 | 3,535.1 |
| 2011-03-04 | Option exercise (derivative) | 1,500 | $0.00 | 0 |
| 2011-03-04 | Option exercise (derivative) | 1,739 | $0.00 | 0 |
| 2011-03-04 | Option exercise (derivative) | 1,453 | $0.00 | 0 |
| 2011-03-04 | Option exercise | 3,192 | $53.75 | 8,027.1 |
| 2011-03-04 | Open-market sale | 4,692 | $115.50 | 3,335.1 |
| 2011-03-04 | Option exercise | 1,500 | $35.50 | 4,835.1 |
| 2010-11-18 | Option exercise (derivative) | 1,617 | $0.00 | 0 |
| 2010-11-18 | Option exercise (derivative) | 680 | $0.00 | 1,000 |
| 2010-11-18 | Option exercise (derivative) | 3,320 | $0.00 | 0 |
| 2010-11-18 | Open-market sale | 9,000 | $95.03 | 3,335.1 |
| 2010-11-18 | Option exercise | 4,000 | $62.47 | 12,335.1 |
| 2010-11-18 | Option exercise | 5,000 | $57.49 | 8,335.1 |
| 2010-09-08 | Grant / award (derivative) | 1,000 | $0.00 | 1,000 |
| 2010-09-08 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2010-06-10 | Option exercise (derivative) | 200 | $0.00 | 800 |
| 2010-06-10 | Option exercise | 200 | $0.00 | 3,149.25 |
| 2009-08-04 | Open-market sale | 74 | $76.00 | 2,548.07 |
| 2009-06-12 | Open-market sale | 73 | $74.80 | 2,622.07 |
| 2009-06-10 | Grant / award (derivative) | 1,000 | $0.00 | 1,000 |
| 2009-06-10 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2008-08-14 | Option exercise (derivative) | 2,000 | $0.00 | 1,500 |
| 2008-08-14 | Option exercise (derivative) | 1,617 | $0.00 | 1,739 |
| 2008-08-14 | Option exercise (derivative) | 1,191 | $0.00 | 1,453 |
| 2008-08-14 | Open-market sale | 4,182 | $105.60 | 3,321.07 |
| 2008-08-14 | Option exercise | 2,000 | $35.50 | 4,695.07 |
| 2008-08-14 | Option exercise | 1,617 | $53.75 | 6,312.07 |
| 2008-08-14 | Open-market sale | 626 | $105.25 | 2,695.07 |
| 2008-08-14 | Option exercise | 1,191 | $53.75 | 7,503.07 |
| 2008-06-11 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2008-06-11 | Grant / award | 1,000 | $0.00 | 2,695.07 |
| 2007-08-15 | Option exercise (derivative) | 3,000 | $80.29 | 3,500 |
| 2007-08-15 | Open-market sale | 3,000 | $80.29 | 1,695.07 |
| 2007-08-15 | Option exercise | 3,000 | $35.50 | 4,695.07 |
| 2007-08-01 | Grant / award (derivative) | 3,000 | $0.00 | 3,000 |
| 2007-08-01 | Grant / award | 1,000 | $0.00 | 1,695.07 |
| 2006-09-05 | Option exercise (derivative) | 3,500 | $73.66 | 6,500 |
| 2006-09-05 | Open-market sale | 3,500 | $73.66 | 695.07 |
| 2006-09-05 | Option exercise | 3,500 | $35.50 | 4,195.07 |
| 2006-04-03 | Grant / award (derivative) | 1,680 | $62.47 | 1,680 |
| 2006-04-03 | Grant / award (derivative) | 3,320 | $62.47 | 3,320 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.