Q2 2024 · 13F-HR
OBERWEIS ASSET MANAGEMENT INC/holdings as filed
Filed 2024-08-14 · accession 0001213900-24-068757
$1.63B
Reported value
197
Positions
2024-06-30
Period end
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| G48833118 | WFRD | Weatherford International PLC | $35.8M | 2.20% | 292,770 | Common | SOLE |
| F21107101 | CSTM | Constellium NV Cl A | $34.7M | 2.12% | 1,838,871 | Common | SOLE |
| G8068L108 | SN | SharkNinja, Inc. | $29.7M | 1.82% | 394,660 | Common | SOLE |
| 683344105 | ONTO | Onto Innovation, Inc. | $28.4M | 1.74% | 129,545 | Common | SOLE |
| 89377M109 | TMDX | TransMedics Group, Inc. | $28.2M | 1.73% | 187,090 | Common | SOLE |
| 98956A105 | ZETA | Zeta Global Holdings Corp. | $28.0M | 1.72% | 1,588,380 | Common | SOLE |
| 29261A100 | EHC | Encompass Health Corporation | $25.1M | 1.54% | 292,187 | Common | SOLE |
| G25457105 | CRDO | Credo Technology Group | $24.9M | 1.53% | 780,330 | Common | SOLE |
| 830879102 | SKYW | Skywest Inc | $23.9M | 1.46% | 291,050 | Common | SOLE |
| 184496107 | CLH | Clean Harbors, Inc. | $23.3M | 1.43% | 103,245 | Common | SOLE |
| 000899104 | ADMA | ADMA Biologics, Inc. | $22.8M | 1.40% | 2,040,700 | Common | SOLE |
| 82706C108 | SIMO | Silicon Motion Techn ADR | $22.5M | 1.38% | 277,300 | Common | SOLE |
| M20791105 | CAMT | Camtek, Ltd. | $22.3M | 1.37% | 178,180 | Common | SOLE |
| 91347P105 | OLED | Universal Display Corp. | $21.0M | 1.29% | 100,048 | Common | SOLE |
| 688239201 | OSK | Oshkosh Corp. | $19.8M | 1.21% | 182,786 | Common | SOLE |
| 227046109 | CROX | Crocs, Inc. | $18.5M | 1.14% | 127,100 | Common | SOLE |
| 346375108 | FORM | Formfactor Inc. | $18.5M | 1.13% | 305,780 | Common | SOLE |
| 34354P105 | FLS | Flowserve Corporation | $17.8M | 1.09% | 370,134 | Common | SOLE |
| G5509L101 | LIVN | LivaNova Plc | $17.7M | 1.08% | 322,685 | Common | SOLE |
| 589889104 | MMSI | Merit Medical System Inc | $16.7M | 1.02% | 193,840 | Common | SOLE |
| 44925C103 | ICFI | ICF International, Inc. | $16.6M | 1.02% | 111,900 | Common | SOLE |
| 004498101 | ACIW | ACI Worldwide Inc. | $16.3M | 1.00% | 412,662 | Common | SOLE |
| 002896207 | ANF | Abercrombie & Fitch Co. | $16.1M | 0.99% | 90,700 | Common | SOLE |
| 095306106 | BLBD | Blue Bird Corporation | $16.1M | 0.99% | 299,100 | Common | SOLE |
| 53815P108 | RAMP | Liveramp Hldgs, Inc. | $15.9M | 0.97% | 512,630 | Common | SOLE |
| 433000106 | HIMS | Hims & Hers Health, Inc. | $15.8M | 0.97% | 785,000 | Common | SOLE |
| 90385V107 | UCTT | Ultra Clean Holdings | $15.7M | 0.96% | 319,600 | Common | SOLE |
| 030111207 | AMSC | American Superconductor | $15.5M | 0.95% | 664,400 | Common | SOLE |
| 156504300 | CCS | Century Communities, Inc. | $15.5M | 0.95% | 190,100 | Common | SOLE |
| 465741106 | ITRI | Itron Inc | $15.1M | 0.92% | 152,400 | Common | SOLE |
| 26856L103 | ELF | e.l.f. Beauty, Inc. | $14.7M | 0.90% | 69,920 | Common | SOLE |
| 29605J106 | ESAB | ESAB Corporation | $14.2M | 0.87% | 150,700 | Common | SOLE |
| 980745103 | WWD | Woodward, Inc. | $14.2M | 0.87% | 81,600 | Common | SOLE |
| 92337F107 | VCYT | Veracyte, Inc. | $14.2M | 0.87% | 654,100 | Common | SOLE |
| 88642r109 | — | Tidewater Inc | $14.1M | 0.86% | 148,095 | Common | SOLE |
| 02081G201 | ATEC | Alphatec Hldgs Inc. | $13.9M | 0.85% | 1,327,360 | Common | SOLE |
| 008073108 | AVAV | Aerovironment, Inc. | $13.9M | 0.85% | 76,040 | Common | SOLE |
| 45826H109 | ITGR | Integer Holdings Corporation | $13.8M | 0.85% | 119,200 | Common | SOLE |
| 405024100 | HAE | Haemonetics Corp. | $13.7M | 0.84% | 165,295 | Common | SOLE |
| 922417100 | VECO | Veeco Instruments, Inc. | $13.6M | 0.84% | 291,900 | Common | SOLE |
| 65290E101 | NXT | Nextracker, Inc. | $13.1M | 0.80% | 278,900 | Common | SOLE |
| 054540208 | ACLS | Axcelis Technologies | $13.1M | 0.80% | 91,799 | Common | SOLE |
| 313855108 | FSS | Federal Signal Corp. | $13.0M | 0.80% | 155,330 | Common | SOLE |
| 05478C105 | AZEK | Azek Co., Inc. | $12.8M | 0.79% | 304,800 | Common | SOLE |
| 127055101 | CBT | Cabot Corp. | $12.4M | 0.76% | 134,500 | Common | SOLE |
| 70202L102 | PSN | Parsons Corp. | $12.2M | 0.75% | 149,120 | Common | SOLE |
| 826919102 | SLAB | Silicon Laboratories, Inc. | $12.1M | 0.74% | 109,500 | Common | SOLE |
| 45674M101 | INFA1EUR | Informatica Corp. | $11.7M | 0.72% | 379,800 | Common | SOLE |
| 45780R101 | IBP | Installed Building Products, I | $11.5M | 0.70% | 55,700 | Common | SOLE |
| 125141101 | CECO | CECO Environmental Corp. | $11.4M | 0.70% | 394,700 | Common | SOLE |
| 875372203 | TNDM | Tandem Diabetes Care, Inc. | $11.4M | 0.70% | 282,000 | Common | SOLE |
| 92537N108 | VRT | Vertiv Holdings Co. | $11.2M | 0.68% | 128,810 | Common | SOLE |
| 78473E103 | SPXC | SPX Technologies, Inc. | $10.6M | 0.65% | 74,500 | Common | SOLE |
| 74164F103 | PRIM | Primoris Services Corp. | $10.5M | 0.64% | 209,900 | Common | SOLE |
| 974155103 | WING | Wingstop, Inc. | $10.3M | 0.63% | 24,400 | Common | SOLE |
| 04621X108 | AIZ | Assurant, Inc. | $10.3M | 0.63% | 61,900 | Common | SOLE |
| 00108J109 | ACMR | ACM Research, Inc. Class A | $10.2M | 0.62% | 441,130 | Common | SOLE |
| 35905A109 | FTDR | Frontdoor, Inc. | $10.0M | 0.61% | 295,500 | Common | SOLE |
| 18467V109 | YOU | Clear Secure, Inc. | $9.8M | 0.60% | 523,200 | Common | SOLE |
| 553498106 | MSA | MSA Safety Inc | $9.6M | 0.59% | 51,000 | Common | SOLE |
| 056525108 | BMI | Badger Meter | $9.5M | 0.58% | 51,200 | Common | SOLE |
| 671044105 | OSIS | Osi Systems, Inc. | $9.5M | 0.58% | 69,200 | Common | SOLE |
| 577933104 | MMS | Maximus, Inc. | $9.5M | 0.58% | 110,600 | Common | SOLE |
| 53263P105 | LMB | Limbach Hldgs, Inc. | $9.4M | 0.58% | 164,800 | Common | SOLE |
| 782011100 | RSI | Rush Street Interactive, Inc. | $9.3M | 0.57% | 971,900 | Common | SOLE |
| 64049M209 | NEO | NeoGenomics, Inc. | $9.3M | 0.57% | 668,700 | Common | SOLE |
| 86272C103 | STRA | Strategic Education, Inc. | $9.3M | 0.57% | 83,800 | Common | SOLE |
| 747316107 | KWR | Quaker Chemical Corporation | $9.2M | 0.57% | 54,400 | Common | SOLE |
| 243537107 | DECK | Deckers Outdoor Corp. | $9.1M | 0.56% | 9,450 | Common | SOLE |
| 85208M102 | SFM | Sprouts Farmers Markets LLC | $9.1M | 0.56% | 108,500 | Common | SOLE |
| Y41053102 | INSW | International Seaways, Inc. | $9.0M | 0.55% | 151,600 | Common | SOLE |
| 099406100 | BOOT | Boot Barn Hldgs, Inc. | $8.9M | 0.55% | 69,400 | Common | SOLE |
| 62855J104 | MYGN | Myriad Genetics Inc. | $8.8M | 0.54% | 360,700 | Common | SOLE |
| 86333M108 | LRN | Stride, Inc. | $8.7M | 0.53% | 123,300 | Common | SOLE |
| 33768G107 | FCFS | FirstCash Holdings, Inc | $8.6M | 0.53% | 82,200 | Common | SOLE |
| 525558201 | LMAT | LeMaitre Vascular, Inc. | $8.3M | 0.51% | 100,703 | Common | SOLE |
| 144285103 | CRS | Carpenter Technology Corp. | $8.2M | 0.50% | 74,700 | Common | SOLE |
| 501147102 | KRYS | Krystal Biotech, Inc. | $7.8M | 0.48% | 42,600 | Common | SOLE |
| 78349D107 | RXST | RxSight, Inc. | $7.6M | 0.47% | 126,640 | Common | SOLE |
| 71639T106 | PETQEUR | PetlQ Inc | $7.5M | 0.46% | 340,700 | Common | SOLE |
| 199908104 | FIX | Comfort Systems USA Inc. | $7.3M | 0.45% | 24,100 | Common | SOLE |
| 228903100 | AORT | Artivion, Inc | $7.2M | 0.44% | 282,400 | Common | SOLE |
| 38526M106 | LOPE | Grand Canyon Education, Inc. | $7.2M | 0.44% | 51,600 | Common | SOLE |
| M2197Q107 | CLBT | Cellebrite DI Ltd. | $7.2M | 0.44% | 603,600 | Common | SOLE |
| 03823U102 | AAOI | Applied Optoelectronics Inc. | $7.2M | 0.44% | 865,915 | Common | SOLE |
| 302301106 | EZPW | EZCorp, Inc. | $7.2M | 0.44% | 685,500 | Common | SOLE |
| 740367404 | PFBC | Preferred Bank | $7.2M | 0.44% | 95,000 | Common | SOLE |
| 14888U101 | CPRX | Catalyst Pharmaceuticals, Inc. | $7.1M | 0.44% | 458,400 | Common | SOLE |
| 47103N106 | JBI | Janus International Group, Inc | $7.1M | 0.43% | 560,900 | Common | SOLE |
| 74167P108 | BCBUSD | Primo Water Corp. | $7.1M | 0.43% | 323,500 | Common | SOLE |
| G3323L100 | FN | Fabrinet | $6.8M | 0.42% | 27,900 | Common | SOLE |
| G6331P104 | AOSL | Alpha & Omega Semiconductor | $6.7M | 0.41% | 180,000 | Common | SOLE |
| 559663109 | MGY | Magnolia Oil & Gas Corp. | $6.7M | 0.41% | 263,500 | Common | SOLE |
| 89531P105 | TREX | Trex Company, Inc. | $6.6M | 0.41% | 89,500 | Common | SOLE |
| 576485205 | MTDR | Matador Resources Company | $6.6M | 0.41% | 111,100 | Common | SOLE |
| 719405102 | PLAB | Photronics, Inc. | $6.6M | 0.40% | 266,000 | Common | SOLE |
| N70544106 | PL0 | Playa Hotels & Resorts N.V. | $6.5M | 0.40% | 772,500 | Common | SOLE |
| P73684113 | OSW | OneSpaWorld Holdings Limited | $6.5M | 0.40% | 420,400 | Common | SOLE |
| 687793109 | OSCR | Oscar Health, Inc. | $6.4M | 0.40% | 407,500 | Common | SOLE |
| 01749D105 | ALGM | Allegro MicroSystems, Inc. | $6.4M | 0.39% | 226,100 | Common | SOLE |
| 26701L100 | BROS | Dutch Bros., Inc. | $6.3M | 0.39% | 152,700 | Common | SOLE |
| 45245E109 | IMAX | Imax Corp. | $6.3M | 0.39% | 376,000 | Common | SOLE |
| 374689107 | ROCK | Gibraltar Inds | $6.0M | 0.37% | 88,100 | Common | SOLE |
| 78463M107 | SPSC | SPS Comm Inc. | $6.0M | 0.37% | 31,800 | Common | SOLE |
| 00760J108 | AEHR | Aehr Test Systems | $6.0M | 0.37% | 534,400 | Common | SOLE |
| 53115L104 | LBRT | Liberty Energy, Inc. | $5.9M | 0.36% | 281,100 | Common | SOLE |
| 918284100 | VSEC | VSE Corp. | $5.9M | 0.36% | 66,300 | Common | SOLE |
| 80874P109 | LNWO | Light & Wonder Inc. | $5.8M | 0.36% | 55,300 | Common | SOLE |
| 26603R106 | DUOL | Duolingo, Inc. | $5.7M | 0.35% | 27,500 | Common | SOLE |
| 05366Y201 | AVNW | Aviat Networks, Inc. | $5.7M | 0.35% | 199,307 | Common | SOLE |
| 302081104 | EXLS | Exlservice Holdings | $5.7M | 0.35% | 181,000 | Common | SOLE |
| 30052C107 | EOLS | Evolus, Inc. | $5.6M | 0.34% | 514,900 | Common | SOLE |
| 42226A107 | HQY | HealthEquity Inc. | $5.6M | 0.34% | 64,600 | Common | SOLE |
| 006739106 | ADUS | Addus Homecare Corp. | $5.5M | 0.34% | 47,500 | Common | SOLE |
| 94724R108 | WEAV | Weave Communications, Inc. | $5.5M | 0.34% | 609,400 | Common | SOLE |
| 18538R103 | CLW | Clearwater Paper Corp | $5.4M | 0.33% | 112,200 | Common | SOLE |
| 03209R103 | AMPH | Amphastar Pharmaceuticals, Inc | $5.4M | 0.33% | 135,055 | Common | SOLE |
| 497266106 | KEX | Kirby Corp. | $5.3M | 0.33% | 44,350 | Common | SOLE |
| 09227Q100 | BLKB | Blackbaud | $5.2M | 0.32% | 67,800 | Common | SOLE |
| 516806205 | 8LP1 | Vital Energy, Inc. | $5.1M | 0.31% | 113,900 | Common | SOLE |
| 74736L109 | QTWO | Q2 Holdings, Inc. | $5.1M | 0.31% | 84,110 | Common | SOLE |
| 91688F104 | UPWK | Upwork, Inc. | $5.0M | 0.31% | 469,200 | Common | SOLE |
| 55305B101 | MHO | M/I Homes, Inc. | $4.9M | 0.30% | 40,300 | Common | SOLE |
| 01741R102 | ATI | ATI, Inc. | $4.9M | 0.30% | 88,700 | Common | SOLE |
| 42330P107 | HLX | Helix Energy Solutions Group, | $4.9M | 0.30% | 407,500 | Common | SOLE |
| 92343x100 | — | Verint Sys Inc. | $4.8M | 0.30% | 150,000 | Common | SOLE |
| 68287N100 | OSPN | OneSpan, Inc. | $4.8M | 0.29% | 370,700 | Common | SOLE |
| 92846Q107 | COCO | The Vita Coco Co., Inc. | $4.6M | 0.28% | 165,400 | Common | SOLE |
| 830940102 | SKWD | Skyward Specialty Ins Group | $4.6M | 0.28% | 126,600 | Common | SOLE |
| 37253A103 | THRM | Gentherm, Inc. | $4.5M | 0.28% | 92,100 | Common | SOLE |
| 74022D407 | PDS | Precision Drilling Corp. | $4.2M | 0.26% | 59,700 | Common | SOLE |
| 56400P706 | MNKD | Mannkind Corp. | $4.2M | 0.26% | 798,800 | Common | SOLE |
| 320817109 | FRME | First Merchants Corporation | $4.1M | 0.25% | 123,400 | Common | SOLE |
| 420261109 | HWKN | Hawkins, Inc. | $4.0M | 0.25% | 44,000 | Common | SOLE |
| 447462102 | HURN | Huron Consulting Group, Inc. | $4.0M | 0.24% | 40,500 | Common | SOLE |
| 749660106 | RES | RPC, Inc. | $4.0M | 0.24% | 638,163 | Common | SOLE |
| 63942X106 | NVTS | Navitas Semiconductor Corp. | $4.0M | 0.24% | 1,013,200 | Common | SOLE |
| 292218104 | EIG | Employers Holdings, Inc. | $3.9M | 0.24% | 92,500 | Common | SOLE |
| 127387108 | CDNS | Cadence Design System, Inc. | $3.9M | 0.24% | 12,800 | Common | SOLE |
| 14167L103 | CDNA | CareDx, Inc. | $3.9M | 0.24% | 250,400 | Common | SOLE |
| 268158201 | DVAX | Dynavax Technologies Corp. | $3.7M | 0.23% | 331,300 | Common | SOLE |
| 587376104 | MBWM | Mercantile Bank Corp. | $3.6M | 0.22% | 89,891 | Common | SOLE |
| G27358103 | DESP1EUR | Despegar Com Corp. | $3.6M | 0.22% | 275,600 | Common | SOLE |
| 825704109 | SIBN | SI-BONE, Inc. | $3.6M | 0.22% | 275,900 | Common | SOLE |
| 04206A101 | ARLO | Arlo Technologies, Inc. | $3.6M | 0.22% | 273,400 | Common | SOLE |
| Y2106R110 | LPG | Dorian LPG Ltd. | $3.6M | 0.22% | 84,800 | Common | SOLE |
| 04041L106 | ARISUSD | Aris Water Solutions, Inc. | $3.5M | 0.22% | 225,200 | Common | SOLE |
| 893529107 | TRNS | Transcat, Inc. | $3.5M | 0.21% | 29,100 | Common | SOLE |
| 336901103 | SRCE | 1st Source Corp. | $3.4M | 0.21% | 63,900 | Common | SOLE |
| 05637B105 | BLZE | Backblaze, Inc. | $3.3M | 0.20% | 538,700 | Common | SOLE |
| 859241101 | STRL | Sterling Construction Co., Inc | $3.2M | 0.20% | 27,300 | Common | SOLE |
| 874039100 | TSM | Taiwan Semiconductor ADR | $3.2M | 0.20% | 18,500 | Common | SOLE |
| 81663L200 | WGS | Genedx Holdings Corp. | $3.2M | 0.20% | 122,000 | Common | SOLE |
| 053604104 | AVPT | AvePoint, Inc. | $3.1M | 0.19% | 296,300 | Common | SOLE |
| 743713109 | PRLB | Proto Labs Inc. | $3.0M | 0.18% | 97,500 | Common | SOLE |
| 292765104 | EPAC | Enerpac Tool Group Corp. | $3.0M | 0.18% | 77,300 | Common | SOLE |
| 87043Q108 | SG | Sweetgreen, Inc. | $2.8M | 0.17% | 92,251 | Common | SOLE |
| 00182C103 | ANIP | ANI Pharmaceuticals, Inc. | $2.8M | 0.17% | 43,500 | Common | SOLE |
| 039697107 | ARDX | Ardelyx, Inc. | $2.8M | 0.17% | 371,800 | Common | SOLE |
| 749527107 | 1RG | Rev Group, Inc. | $2.7M | 0.17% | 110,100 | Common | SOLE |
| 55955D100 | MGNI | Magnite, Inc. | $2.7M | 0.16% | 200,000 | Common | SOLE |
| 383082104 | GRC | The Gorman-Rupp Co. | $2.5M | 0.16% | 68,900 | Common | SOLE |
| 91388P105 | ULH | Universal Logistics Holdings | $2.5M | 0.15% | 62,200 | Common | SOLE |
| 09180C106 | BJRI | BJ's Restaurants, Inc. | $2.5M | 0.15% | 72,600 | Common | SOLE |
| 739128106 | POWL | Powell Industries Inc. | $2.4M | 0.15% | 16,800 | Common | SOLE |
| 691497309 | OXM | Oxford Inds, Inc. | $2.3M | 0.14% | 23,400 | Common | SOLE |
| 96924N100 | WLDN | Willdan Group Inc. | $2.3M | 0.14% | 79,100 | Common | SOLE |
| 00246W103 | AXTI | AXT Inc | $2.2M | 0.14% | 659,021 | Common | SOLE |
| 913837100 | — | Universal Stainless And Alloy | $2.2M | 0.14% | 80,900 | Common | SOLE |
| 53635D202 | LQDA | Liquidia Corp. | $2.2M | 0.13% | 183,200 | Common | SOLE |
| 09075A108 | BVS | Bioventus, Inc. | $2.2M | 0.13% | 380,914 | Common | SOLE |
| 81686C104 | 628 | Semrush Holdings, Inc. | $2.1M | 0.13% | 159,200 | Common | SOLE |
| 576853105 | MTRX | Matrix Service Co. | $2.1M | 0.13% | 211,075 | Common | SOLE |
| 78462F103 | SPY | SPDR S&P 500 ETF Trust | $2.0M | 0.12% | 3,585 | Common | NONE |
| 722304102 | PDD | PDD Holdings Inc. ADR | $1.6M | 0.10% | 12,000 | Common | SOLE |
| V5633W109 | MMYT | MakeMyTrip Ltd. | $1.5M | 0.09% | 17,400 | Common | SOLE |
| 594918104 | MSFT | Microsoft Corp. | $1.2M | 0.07% | 2,725 | Common | NONE |
| 88034P109 | TME | Tencent Music Entertainment AD | $1.1M | 0.07% | 80,000 | Common | SOLE |
| 46625H100 | JPM | JP Morgan Chase & Company Inc. | $769,949 | 0.05% | 3,807 | Common | NONE |
| 037833100 | AAPL | Apple, Inc. | $712,266 | 0.04% | 3,382 | Common | NONE |
| 23292E108 | DIDIY | DiDi Global Inc. ADR | $538,200 | 0.03% | 130,000 | Common | SOLE |
| 48553T106 | BZ | Kanzhun Limited ADR | $451,440 | 0.03% | 24,000 | Common | SOLE |
| 89417E109 | TRV | The Travelers Co., Inc. | $414,798 | 0.03% | 2,040 | Common | NONE |
| 595112103 | MU | Micron Technology | $394,590 | 0.02% | 3,000 | Common | SOLE |
| 57636Q104 | MA | Mastercard, Inc. | $342,230 | 0.02% | 776 | Common | NONE |
| 031162100 | AMGN | Amgen, Inc. | $334,571 | 0.02% | 1,071 | Common | NONE |
| 478160104 | JNJ | Johnson & Johnson | $317,252 | 0.02% | 2,171 | Common | NONE |
| G9470A102 | VTEX | VTEX | $306,372 | 0.02% | 42,200 | Common | SOLE |
| 761152107 | RMD | Resmed Inc. | $277,559 | 0.02% | 1,450 | Common | NONE |
| G0457F107 | ARCO | Arcos Dorados Holdings, Inc. | $270,000 | 0.02% | 30,000 | Common | SOLE |
| 29082A107 | EMBJ | Embraer Embraer S.A. Spon Adr | $265,740 | 0.02% | 10,300 | Common | SOLE |
| G0896C103 | TBBB | BBB Foods, Inc. | $262,460 | 0.02% | 11,000 | Common | SOLE |
| 931142103 | WMT | Wal Mart Stores Inc. | $218,876 | 0.01% | 3,233 | Common | NONE |
| 580135101 | MCD | McDonald's Corporation | $215,480 | 0.01% | 846 | Common | NONE |
| 58933Y105 | MRK | Merck & Co. | $214,174 | 0.01% | 1,730 | Common | NONE |
| 98401A106 | — | Xenacare Hldgs, Inc. | $0 | — | 140,000 | Common | NONE |
| 001ESC102 | — | AMR Corp Escrow | $0 | — | 18,000 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.