Gagnon Securities LLC
- SEC CIK
- 0001125725
- Latest filing
- Aug 4, 2026
Holdings in Q4 2021
Holdings as of Dec 31, 2021, filed Feb 8, 2022. Long positions only; changes compare share counts with Q3 2021.
- Positions
- 104
- −8 vs. Q3 2021
- Portfolio value
- $666.7M
- −$6.38M (−0.9%) vs. Q3 2021
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| APTOAptose Biosciences Inc. | COM NEW | 58,380 | $79.0K | <0.1% | −1,000−1.7% | Reduced | History |
| Rada Electr Inds LtdM81863124 | COM PAR NEW | 15,766 | $149.0K | <0.1% | +2,010+14.6% | Added | – |
| DLNGDynagas LNG Partners LP | COM UNIT LTD PT | 54,575 | $158.0K | <0.1% | +463+0.9% | Added | History |
| Ces Energy Solutions Corp15713J104 | COM | 111,370 | $179.0K | <0.1% | 00.0% | Unchanged | – |
| ZGNXZogenix, Inc. | COM NEW | 12,500 | $203.0K | <0.1% | 00.0% | Unchanged | History |
| Arc Resources Ltd00208D408 | COM | 23,623 | $215.0K | <0.1% | 00.0% | Unchanged | – |
| MIMEMimecast Ltd | ORD SHS | 2,788 | $222.0K | <0.1% | +2,788 | New | History |
| HPHelmerich & Payne, Inc. | COM | 9,406 | $223.0K | <0.1% | +87+0.9% | Added | History |
| MODNModel N, Inc. | COM | 7,463 | $224.0K | <0.1% | +7,463 | New | History |
| Royal Dutch Shell PLC780259206 | SPONS ADR A | 5,156 | $224.0K | <0.1% | 00.0% | Unchanged | – |
| VTOLBristow Group Inc. | COM | 7,446 | $236.0K | <0.1% | +66+0.9% | Added | History |
| CLBCore Laboratories Inc. | COM | 10,934 | $244.0K | <0.1% | +99+0.9% | Added | History |
| MSFTMicrosoft Corp | Stock | 743 | $250.0K | <0.1% | +743 | New | History |
| LPSNLiveperson Inc | COM | 7,288 | $260.0K | <0.1% | +500+7.4% | Added | History |
| RESRPC Inc | COM | 63,624 | $289.0K | <0.1% | +594+0.9% | Added | History |
| VIAVViavi Solutions Inc. | COM | 17,364 | $306.0K | <0.1% | +2,650+18.0% | Added | History |
| RBLXRoblox Corp | Stock | 3,275 | $338.0K | 0.1% | +43+1.3% | Added | History |
| NVDANVIDIA Corp | Stock | 1,180 | $347.0K | 0.1% | −2,264−65.7% | Reduced | History |
| MRKMerck & Co., Inc. | Stock | 4,563 | $350.0K | 0.1% | 00.0% | Unchanged | History |
| SEMA4 Holdings Corp81663L119 | *W EXP 07/22/202 | 362,212 | $355.0K | 0.1% | +116,239+47.3% | Added | – |
| METAMeta Platforms, Inc. | Stock | 1,058 | $356.0K | 0.1% | 00.0% | Unchanged | History |
| ONTOOnto Innovation Inc. | COM | 3,536 | $358.0K | 0.1% | −98,107−96.5% | Reduced | History |
| EOGEOG Resources Inc | Stock | 4,334 | $385.0K | 0.1% | +11+0.3% | Added | History |
| TTOOT2 Biosystems, Inc. | COM | 760,610 | $393.0K | 0.1% | +245,792+47.7% | Added | History |
| GDRXGoodRx Holdings, Inc. | COM CL A | 12,865 | $420.0K | 0.1% | +275+2.2% | Added | History |
| ETSYEtsy Inc | COM | 1,943 | $425.0K | 0.1% | −220−10.2% | Reduced | History |
| MUMicron Technology Inc | Stock | 4,572 | $426.0K | 0.1% | 00.0% | Unchanged | History |
| ETEnergy Transfer LP | COM UT LTD PTN | 52,139 | $429.0K | 0.1% | +483+0.9% | Added | History |
| GOOGLAlphabet Inc. | Stock | 151 | $437.0K | 0.1% | 00.0% | Unchanged | History |
| Monmouth Real Estate Investment Corp609720107 | CL A | 22,209 | $467.0K | 0.1% | 00.0% | Unchanged | – |
| CHGGChegg, Inc | COM | 15,781 | $484.0K | 0.1% | +10,208+183.2% | Added | History |
| DNNDenison Mines Corp. | COM | 354,658 | $486.0K | 0.1% | +3,594+1.0% | Added | History |
| PETSPetmed Express Inc | COM | 19,365 | $489.0K | 0.1% | 00.0% | Unchanged | History |
| TAT&T Inc. | Stock | 20,311 | $500.0K | 0.1% | −36,851−64.5% | Reduced | History |
| NCSMNCS Multistage Holdings, Inc. | COM NEW | 17,368 | $503.0K | 0.1% | +7,228+71.3% | Added | History |
| TLMDSOC Telemed, Inc. | COM CL A | 404,660 | $518.0K | 0.1% | −5,625−1.4% | Reduced | History |
| RNGRingCentral, Inc. | CL A | 2,783 | $521.0K | 0.1% | +2,783 | New | History |
| PYPLPayPal Holdings, Inc. | Stock | 2,771 | $523.0K | 0.1% | +259+10.3% | Added | History |
| URGUr-Energy Inc | COM | 432,069 | $527.0K | 0.1% | +3,865+0.9% | Added | History |
| WBAWalgreens Boots Alliance, Inc. | COM | 10,997 | $574.0K | 0.1% | 00.0% | Unchanged | History |
| Sailpoint Technologies Holdings, Inc.78781P105 | COM | 12,190 | $589.0K | 0.1% | +4,173+52.1% | Added | – |
| Exchange Traded Concepts Tr301505715 | NORTH SHOR GBL | 8,236 | $593.0K | 0.1% | +74+0.9% | Added | – |
| Sysmex CorpJ7864H102 | COM | 4,514 | $595.0K | 0.1% | 00.0% | Unchanged | – |
| SLGCWSomaLogic, Inc. | *W EXP 03/01/202 | 181,253 | $605.0K | 0.1% | −842−0.5% | Reduced | History |
| WFCWells Fargo & Company | Stock | 13,056 | $626.0K | 0.1% | 00.0% | Unchanged | History |
| Ocado Group PLCG6718L106 | COM | 35,790 | $813.0K | 0.1% | +7,906+28.4% | Added | – |
| RDHLRedHill Biopharma Ltd. | SPONSORED ADS | 318,323 | $821.0K | 0.1% | −73,922−18.8% | Reduced | History |
| Sprott Physical Uranium Unt85210A104 | COM | 74,730 | $824.0K | 0.1% | +661+0.9% | Added | – |
| WLYJohn Wiley & Sons, Inc. | CL A | 15,276 | $875.0K | 0.1% | +627+4.3% | Added | History |
| Nintendo Ltd ADR654445303 | ADR | 15,570 | $907.0K | 0.1% | +555+3.7% | Added | – |
| NEXNextier Oilfield Solutions Inc. | COM | 303,067 | $1.08M | 0.2% | +888+0.3% | Added | History |
| DVNDevon Energy Corp | Stock | 25,944 | $1.14M | 0.2% | −1,152−4.3% | Reduced | History |
| MRVLMarvell Technology, Inc. | COM | 13,105 | $1.15M | 0.2% | +455+3.6% | Added | History |
| E2open Parent Holdings, Inc.29788T111 | *W EXP 02/04/202 | 435,332 | $1.26M | 0.2% | −5,574−1.3% | Reduced | – |
| SLGSL Green Realty Corp | COM | 19,095 | $1.37M | 0.2% | 00.0% | Unchanged | History |
| DRRXDurect Corp | COM | 1,401,051 | $1.38M | 0.2% | +73,647+5.5% | Added | History |
| GNTXGentex Corp | COM | 47,905 | $1.67M | 0.3% | +1,082+2.3% | Added | History |
| MCHPMicrochip Technology Inc | Stock | 20,657 | $1.80M | 0.3% | −231−1.1% | ReducedConverted for a 2-for-1 split | History |
| XOMExxonMobil Holdings Corp | COM | 31,000 | $1.90M | 0.3% | 00.0% | Unchanged | History |
| TPRTapestry, Inc. | COM | 47,105 | $1.91M | 0.3% | +307+0.7% | Added | History |
| MIROMiromatrix Medical Inc. | COM | 408,387 | $1.92M | 0.3% | −15,162−3.6% | Reduced | History |
| PFEPfizer Inc | Stock | 33,957 | $2.00M | 0.3% | 00.0% | Unchanged | History |
| TFFPTFF Pharmaceuticals, Inc. | COM | 252,473 | $2.24M | 0.3% | −29,756−10.5% | Reduced | History |
| GNRCGenerac Holdings Inc. | Stock | 6,786 | $2.39M | 0.4% | −91−1.3% | Reduced | History |
| PSIXPower Solutions International, Inc. | Stock | 1,179,083 | $3.54M | 0.5% | +7,013+0.6% | Added | History |
| AKAMAkamai Technologies Inc | COM | 32,785 | $3.84M | 0.6% | +543+1.7% | Added | History |
| CELCCelcuity Inc. | COM | 306,394 | $4.04M | 0.6% | −554−0.2% | Reduced | History |
| WGSGeneDx Holdings Corp. | COMMON STOCK | 969,617 | $4.32M | 0.6% | +273,574+39.3% | Added | History |
| PNTGPennant Group, Inc. | COM | 191,284 | $4.42M | 0.7% | −1,171−0.6% | Reduced | History |
| CTRECareTrust REIT, Inc. | COM | 215,568 | $4.92M | 0.7% | −1,682−0.8% | Reduced | History |
| PRLBProto Labs Inc | COM | 98,639 | $5.07M | 0.8% | +39,914+68.0% | Added | History |
| Opsens Incorporated683823108 | Common Stock | 2,405,952 | $5.91M | 0.9% | +205,316+9.3% | Added | – |
| CNFCNFinance Holdings Ltd. | SPON ADS | 1,527,494 | $6.23M | 0.9% | +132,451+9.5% | Added | History |
| CSLTCastlight Health, Inc. | CL B | 4,087,486 | $6.29M | 0.9% | −23,922−0.6% | Reduced | History |
| FRSHFreshworks Inc. | Stock | 256,904 | $6.75M | 1.0% | +46,872+22.3% | Added | History |
| CAKECheesecake Factory Inc | COM | 177,785 | $6.96M | 1.0% | +7,607+4.5% | Added | History |
| CMGChipotle Mexican Grill Inc | COM | 4,828 | $8.44M | 1.3% | −28−0.6% | Reduced | History |
| SLGCSomaLogic, Inc. | CLASS A COM | 905,585 | $10.5M | 1.6% | −19,758−2.1% | Reduced | History |
| BLFSBiolife Solutions Inc | COM NEW | 316,969 | $11.8M | 1.8% | −2,374−0.7% | Reduced | History |
| PROFProfound Medical Corp. | COM NEW | 1,077,357 | $12.1M | 1.8% | +110,821+11.5% | Added | History |
| APENApollo Endosurgery, Inc. | COM | 1,534,056 | $12.9M | 1.9% | −6,872−0.4% | Reduced | History |
| IRBTiRobot Corp | COM | 196,310 | $12.9M | 1.9% | +8,514+4.5% | Added | History |
| SCWXSecureWorks Corp | CL A | 823,078 | $13.1M | 2.0% | +1810.0% | Added | History |
| ZUOZuora Inc | COM CL A | 722,767 | $13.5M | 2.0% | +13,602+1.9% | Added | History |
| EPDEnterprise Products Partners L.P. | Stock | 631,697 | $13.9M | 2.1% | +220.0% | Added | History |
| QDELQuidelOrtho Corp | COM | 103,121 | $13.9M | 2.1% | +2,496+2.5% | Added | History |
| EQIXEquinix Inc | COM | 16,896 | $14.3M | 2.1% | +80.0% | Added | History |
| EVBGEverbridge, Inc. | COM | 216,559 | $14.6M | 2.2% | +66,904+44.7% | Added | History |
| KMXCarMax Inc | COM | 123,866 | $16.1M | 2.4% | +464+0.4% | Added | History |
| YEXTYext, Inc. | COM | 1,710,890 | $17.0M | 2.5% | +338,338+24.7% | Added | History |
| NVGSNavigator Holdings Ltd. | SHS | 1,985,578 | $17.6M | 2.6% | +174,499+9.6% | Added | History |
| ETWOE2open Parent Holdings, Inc. | COM CL A | 1,565,909 | $17.6M | 2.6% | +2,338+0.1% | Added | History |
| EVAEnviva, LLC | COM UNIT | 258,040 | $18.2M | 2.7% | −257−0.1% | Reduced | History |
| FIVNFive9, Inc. | COM | 139,985 | $19.2M | 2.9% | +7,833+5.9% | Added | History |
| BLBlackline, Inc. | COM | 188,624 | $19.5M | 2.9% | −4,136−2.1% | Reduced | History |
| LLLL Flooring Holdings, Inc. | COM | 1,269,946 | $21.7M | 3.3% | +29,419+2.4% | Added | History |
| NEWRNew Relic, Inc. | COM | 206,719 | $22.7M | 3.4% | −8,321−3.9% | Reduced | History |
| AMRCAmeresco, Inc. | CL A | 279,123 | $22.7M | 3.4% | −92,531−24.9% | Reduced | History |
| ISRGIntuitive Surgical Inc | COM NEW | 69,608 | $25.0M | 3.8% | −415−0.6% | ReducedConverted for a 3-for-1 split | History |
| ENSGEnsign Group, Inc | COM | 377,246 | $31.7M | 4.8% | −5,059−1.3% | Reduced | History |
Options (1)
Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.
| Security | Class | Puts | Calls |
|---|---|---|---|
| AMWLAmerican Well Corp | CL A | – | $62.0K |
Sold out since Q3 2021 (12)
Positions held at the end of Q3 2021 that are gone from this filing.
| Security | Class | Shares in Q3 2021 | Value in Q3 2021 | % of portfolio in Q3 2021 | History |
|---|---|---|---|---|---|
| FLXNFlexion Therapeutics Inc | COM | 211,141 | $1.29M | 0.2% | History |
| HOLXHologic Inc | COM | 14,950 | $1.10M | 0.2% | History |
| OSUROrasure Technologies Inc | COM | 87,801 | $993.0K | 0.1% | History |
| Meridian Bioscience Inc589584101 | COM | 44,361 | $854.0K | 0.1% | – |
| EQCEQC Liquidating Trust | COM SH BEN INT | 20,311 | $528.0K | 0.1% | History |
| RRCRange Resources Corp | COM | 22,157 | $501.0K | 0.1% | History |
| VTRSViatris Inc | Stock | 34,679 | $470.0K | 0.1% | History |
| BFLYButterfly Network, Inc. | COM CL A | 33,366 | $348.0K | 0.1% | History |
| EHTHeHealth, Inc. | COM | 8,279 | $335.0K | <0.1% | History |
| Vonage Holdings Corp92886T201 | COM | 14,632 | $236.0K | <0.1% | – |
| ZENZendesk, Inc. | COM | 1,892 | $220.0K | <0.1% | History |
| CEMIChembio Diagnostics, Inc. | COM NEW | 47,793 | $119.0K | <0.1% | History |