Investor Gagnon Securities Llc
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Gagnon Securities Llc . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2026-04-08 13G OSUR / OraSure Technologies, Inc. 3,565,315 3,754,846
2026-02-12 13G/A TMCI / Treace Medical Concepts, Inc. 3,979,454 6,142,107
2026-02-12 13G/A OSUR / OraSure Technologies, Inc. 3,590,538 3,565,315
2026-02-12 13G/A 93,301,000
2026-02-12 13G/A CDNA / CareDx, Inc. 2,894,541 3,054,946
2025-11-17 13G OSUR / OraSure Technologies, Inc. 3,590,538
2025-11-14 13G/A 93,309,600
2025-10-24 13G/A AMRC / Ameresco, Inc. 2,635,200 1,717,344
2025-07-24 13G CDNA / CareDx, Inc. 2,549,578 2,894,541
2025-05-15 13G TMCI / Treace Medical Concepts, Inc. 3,979,454
2025-01-23 13G/A PSIX / Power Solutions International, Inc. 972,006 1,678,849
2025-01-23 13G/A PROF / Profound Medical Corp. 2,905,406 3,346,743
2025-01-23 13G/A PSIX / Power Solutions International, Inc. 972,006 1,678,849
2024-11-14 13G/A PROF / Profound Medical Corp. 2,891,423 2,905,406
2024-08-21 13G/A CDNA / CareDx, Inc. 3,373,476 2,549,578
2024-02-13 13G/A CDNA / CareDx, Inc. 3,348,292 3,373,476
2024-02-13 13G/A PROF / Profound Medical Corp. 3,136,828 2,891,423
2023-03-13 13G CDNA / CareDx, Inc. 2,034,966 3,348,292
2023-02-13 13G/A PROF / Profound Medical Corp. 3,124,364 3,136,828
2023-02-06 13G/A PROF / Profound Medical Corp. 3,181,742 3,124,364
2022-10-11 13G/A PROF / Profound Medical Corp. 2,078,029 3,181,742
2022-03-10 13G/A PROF / Profound Medical Corp. 1,861,219 2,078,029
2022-02-03 13G/A PROF / Profound Medical Corp. 1,410,626 1,861,219
2022-02-03 13G/A PROF / Profound Medical Corp. 1,410,626 1,861,219
2021-09-24 13G/A SLGC / Standard BioTools Inc. 2,214,845
2021-05-11 13G/A GFDV / General Finance & Development, Inc. 2,188,922 1,419,955
2021-04-21 13G/A GFDV / General Finance & Development, Inc. 3,873,148 2,188,922
2021-04-08 13G CMIIU / Columbus Circle Capital Corp II - Debt/Equity Composite Units 1,454,690
2021-02-09 13G/A PROF / Profound Medical Corp. 1,365,711 1,410,626
2021-02-09 13G/A GFDV / General Finance & Development, Inc. 3,731,442 3,873,148
2020-02-13 13G PROF / Profound Medical Corp. 1,365,711
2020-02-13 13G/A GFDV / General Finance & Development, Inc. 3,616,429 3,731,442
2019-06-20 13G/A CDNA / CareDx, Inc. 2,658,209 2,034,966
2019-01-18 13G/A CDNA / CareDx, Inc. 3,450,959 2,658,209
2019-01-18 13G/A / General Finance Corp. 3,690,165 3,616,429
2019-01-18 13G/A AOSL / Alpha and Omega Semiconductor Limited 1,203,828 1,646,365
2018-11-06 13G/A CDNA / CareDx, Inc. 4,199,438 3,450,959
2018-06-14 13G/A / General Finance Corp. 5,093,596 3,690,165
2018-05-25 13G AOSL / Alpha and Omega Semiconductor Limited 1,873,781 1,203,828
2018-02-13 13G/A CDNA / CareDx, Inc. 3,844,901 4,199,438
2018-02-13 13G/A / General Finance Corp. 5,228,921 5,093,596
2017-08-10 13G SCWX / SecureWorks Corp. 556,535
2017-02-14 13G/A PSIX / Power Solutions International, Inc. 972,006 972,006
2017-02-14 13G/A CDNA / CareDx, Inc. 3,844,901 3,844,901
2017-02-13 13G/A CDNA / CareDx, Inc. 2,300,173 3,844,901
2017-02-13 13G/A PSIX / Power Solutions International, Inc. 651,953 972,006
2017-01-24 13G / General Finance Corp. 5,380,579 5,228,921
2016-02-12 13G/A PSIX / Power Solutions International, Inc. 576,726 651,953
2016-02-12 13G/A CDNA / CareDx, Inc. 2,300,173
2016-02-12 13G/A AOSL / Alpha and Omega Semiconductor Limited 1,873,781
2016-02-12 13G/A CSLT / Castlight Health Inc - Class B 1,996,831 2,081,039
2016-02-03 13D/A / General Finance Corp. 5,342,763 5,380,579
2015-10-28 13D/A / General Finance Corp. 5,342,763
2015-09-23 13G PSIX / Power Solutions International, Inc. 576,726
2015-08-12 13G CSLT / Castlight Health Inc - Class B 1,764,193 1,996,831
2015-05-27 13G/A CSLT / Castlight Health Inc - Class B 1,784,751 1,764,193
2015-04-07 13G CSLT / Castlight Health Inc - Class B 1,784,751
2015-02-12 13G/A CSLT / Castlight Health Inc - Class B 996,290
2015-02-10 13G/A AOSL / Alpha and Omega Semiconductor Limited 2,468,412
2015-02-03 13G/A CDNA / CareDx, Inc. 1,783,863
2014-12-10 13D/A / General Finance Corp. 5,546,268
2014-11-07 13G/A CDNA / CareDx, Inc. 1,180,664
2014-09-24 13G AMBR / Amber International Holding Limited - Depositary Receipt (Common Stock) 1,324,200
2014-09-02 13G CSLT / Castlight Health Inc - Class B 859,066
2014-07-29 13G CDNA / CareDx, Inc. 1,046,015
2014-06-26 13D/A / General Finance Corp. 5,768,280
2014-06-12 13D/A / General Finance Corp. 6,030,962
2014-05-15 13D/A / General Finance Corp. 6,301,608
2014-04-22 13D/A / General Finance Corp. 6,498,213
2014-03-18 13G/A DRRX / DURECT Corporation 2,208,819
2014-03-05 13D/A / General Finance Corp. 6,724,346
2014-02-07 13G/A NSSC / Napco Security Technologies, Inc. 850,520
2014-02-06 13G/A DRRX / DURECT Corporation 6,115,537
2014-02-06 13G/A US74975N1054 / RTI Surgical, Inc. 3,350,100
2014-02-06 13G/A AOSL / Alpha and Omega Semiconductor Limited 2,460,158
2014-02-06 13G/A AMRC / Ameresco, Inc. 2,635,200
2014-02-06 13G/A / CHRISTOPHER & BANKS CORP 1,886,182
2014-02-05 13G RTEC / Rudolph Technologies, Inc. 1,663,309
2014-02-05 13G/A NVDQ / ETF Opportunities Trust - T-Rex 2X Inverse NVIDIA Daily Target ETF 1,650,043
2013-10-28 13G / CHRISTOPHER & BANKS CORP 1,900,775
2013-06-03 13G/A NTS / Nts, Inc. 0
2013-04-25 13D/A / General Finance Corp. 6,731,407
2013-02-13 13G/A US74975N1054 / RTI Surgical, Inc. 2,870,598
2013-02-13 13G/A DRRX / DURECT Corporation 7,210,654
2013-02-13 13G/A NTS / Nts, Inc. 3,544,489
2013-02-13 13G/A NVDQ / ETF Opportunities Trust - T-Rex 2X Inverse NVIDIA Daily Target ETF 3,700,419
2013-02-13 13G AOSL / Alpha and Omega Semiconductor Limited 1,795,536
2013-02-13 13G AMRC / Ameresco, Inc. 1,673,852
2013-02-13 13G NSSC / Napco Security Technologies, Inc. 1,089,709
2012-05-08 13G NVDQ / ETF Opportunities Trust - T-Rex 2X Inverse NVIDIA Daily Target ETF 3,977,541
2012-04-05 13D / General Finance Corp. 7,303,883
2012-02-08 13G/A DRRX / DURECT Corporation 7,841,362
2012-02-08 13G/A NTS / Nts, Inc. 4,792,304
2012-02-07 13G/A US74975N1054 / RTI Surgical, Inc. 3,067,726
2012-02-07 13G/A PLXT / Plx Technology Inc 3,453,042
2012-01-30 13G/A RTEC / Rudolph Technologies, Inc. 1,292,376