GAGNON SECURITIES LLC - Stock Holdings in 13F Filings (SEC)
Updated on March 15, 2026.
Based on 13F Filings filed with the SEC on February 13, 2026, for the 2025 Q4 period, GAGNON SECURITIES LLC held in its portfolio 86 assets valued at $491,087,326 (i.e. $491.09M).
The most valuable assets in the portfolio included: CAREDX INC ($33.44M), GENEDX HOLDINGS CORP ($32.98M), and AIR LEASE CORP ($31.92M).
The chart below shows the top 10 valuable assets, and the table below shows the top 86 valuable assets.
You can see similar for other investment managers.
Related Topics: SEC Topic List.
Data Source: SEC.
GAGNON SECURITIES LLC - Stock Holdings in 13F Filings (SEC)
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| Name of Issuer | No. of Shares | Value ($) | Class |
|---|---|---|---|
| CAREDX INC | 1774890 | 33438936 | COM |
| GENEDX HOLDINGS CORP | 253534 | 32974632 | COM CL A |
| AIR LEASE CORP | 496957 | 31919548 | CL A |
| ENSIGN GROUP INC | 180549 | 31451636 | COM |
| AMERESCO INC | 832884 | 24395172 | CL A |
| INTUITIVE SURGICAL INC | 31797 | 18008556 | COM NEW |
| EXACT SCIENCES CORP | 167414 | 17002566 | COM |
| ENTERPRISE PRODS PARTNERS L P | 527601 | 16914888 | COM |
| BLACKLINE INC | 279398 | 15447915 | COM |
| PROFOUND MED CORP | 1944061 | 15299760 | COM |
| FRESHWORKS INC | 1230011 | 15067635 | CLASS A COM |
| NAVIGATOR HLDGS LTD | 861854 | 14927311 | COM |
| EQUINIX INC | 17142 | 13133515 | COM |
| PACIRA BIOSCIENCES INC | 501211 | 12971341 | COM |
| BIOLIFE SOLUTIONS INC | 534357 | 12920752 | COM NEW |
| FIVE9 INC | 625726 | 12545806 | COM |
| CARMAX INC | 320077 | 12367775 | COM |
| CHEESECAKE FACTORY INC | 226594 | 11438465 | COM |
| CARGURUS INC | 270822 | 10386024 | COM CL A |
| GENERAC HLDGS INC | 75593 | 10308617 | COM |
| AMPLITUDE INC | 698870 | 8092915 | COM CL A |
| MarineMax Inc | 322053 | 7803344 | COM |
| TREACE MED CONCEPTS INC | 3110575 | 7620909 | COM |
| VERTEX INC | 364643 | 7281921 | COM |
| CHIPOTLE MEXICAN GRILL INC | 156975 | 5808075 | COM |
| PROTO LABS INC | 111548 | 5643213 | SPON ADS NEW |
| DOUBLEVERIFY HLDGS INC | 491664 | 5624636 | COM |
| CELCUITY INC | 53401 | 5326216 | COM |
| CARETRUST REIT INC | 133071 | 4811847 | COM |
| KALTURA INC | 2861365 | 4692639 | COM |
| QUIDELORTHO CORP | 159177 | 4546095 | COM NEW |
| ALPHA & OMEGA SEMICONDUCTOR LT | 215642 | 4271868 | SHS |
| ICU MED INC | 29073 | 4147845 | COM |
| WHITECAP RES INC | 486122 | 4078353 | CL A |
| PENNANT GROUP INC | 137526 | 3871357 | COM |
| NVIDIA CORPORATION | 20517 | 3826421 | COM |
| OraSure Technologies Inc | 1569782 | 3798872 | COM |
| ASPEN AEROGELS INC | 1133248 | 3207092 | COM |
| TAPESTRY INC | 21447 | 2740323 | COM CL A |
| PATTERSON-UTI ENERGY INC | 352777 | 2155467 | COM |
| CNFINANCE HLDGS LTD | 316853 | 1916961 | SPON ADS |
| NCINO INC | 73494 | 1884386 | SPONSORED ADS |
| MICROCHIP TECHNOLOGY INC. | 27162 | 1730775 | COM |
| GLOBAL NET LEASE INC | 170510 | 1466386 | COM NEW |
| GENTEX CORP | 55672 | 1295497 | COM |
| BOSTON BEER INC | 6355 | 1240051 | CL A |
| NINTENDO LTD | 70323 | 1185646 | COM |
| SL GREEN RLTY CORP | 25838 | 1185189 | COM |
| PFIZER INC | 44353 | 1104390 | COM NEW |
| FLAGSTAR BANK NATIONAL ASSOCIA | 74867 | 942575 | COM NEW |
| EXXON MOBIL CORP | 7180 | 864041 | COM |
| AT&T INC | 33227 | 825359 | COM |
| ALPHABET INC | 2556 | 800028 | CAP STK CL A |
| DEVON ENERGY CORP | 19111 | 700036 | COM |
| ALPHABET INC | 1939 | 608458 | CAP STK CL C |
| SHOPIFY INC | 3684 | 593013 | CL A SUB VTG SHS |
| GAMBLING COM GROUP LIMITED | 105569 | 576407 | ORDINARY SHARES |
| Bio-Techne Corp | 9614 | 565399 | COM |
| MACOM TECH SOLUTIONS HLDGS INC | 3295 | 564368 | COM |
| META PLATFORMS INC | 839 | 553816 | CL A |
| MARVELL TECHNOLOGY INC | 6327 | 537669 | ORD |
| WEAVE COMMUNICATIONS INC | 70489 | 535012 | COM |
| STARBUCKS CORP | 5502 | 463323 | COM |
| HIMAX TECHNOLOGIES INC | 53946 | 441818 | SPONSORED ADR |
| VIAVI SOLUTIONS INC | 23992 | 427537 | COM |
| DIGITAL TURBINE INC | 81839 | 409195 | COM NEW |
| CES ENERGY SOLUTIONS CORP | 45700 | 409075 | COM |
| MERCK & CO INC | 3867 | 407040 | COM |
| PAYPAL HLDGS INC | 6596 | 385074 | COM |
| LIFE TIME GROUP HOLDINGS INC | 13538 | 359840 | COMMON STOCK |
| ONTO INNOVATION INC | 2242 | 353922 | COM |
| Cognex Corp | 9772 | 351597 | COM |
| ETSY INC | 5692 | 315564 | COM |
| COMMVAULT SYS INC | 2453 | 307508 | COM |
| MICRON TECHNOLOGY INC | 1077 | 307387 | COM |
| REIN THERAPEUTICS INC | 240220 | 278655 | COM |
| ACTINIUM PHARMACEUTICALS INC | 201807 | 274458 | COM |
| RAMBUS INC DEL | 2711 | 249114 | COM |
| MICROSOFT CORP | 508 | 245679 | COM |
| RINGCENTRAL INC | 8149 | 235343 | CL A |
| BLACKSTONE INC | 1475 | 227357 | COM |
| AKAMAI TECHNOLOGIES INC | 2520 | 219870 | COM |
| PETMED EXPRESS INC | 42328 | 135450 | COM |
| SAVERS VALUE VLG INC | 13764 | 128556 | COM |
| GOODRX HLDGS INC | 44118 | 119560 | COM CL A |
| REDHILL BIOPHARMA LTD | 86102 | 88685 | SPONSORED ADR |
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