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Oberweis Asset Management

Latest statistics and disclosures from Oberweis Asset Management's latest quarterly 13F-HR filing:

Top 5 stock holdings are CSTM, ACLS, AEHR, ATEC, PI, and represent 19.68% of Oberweis Asset Management's stock portfolio.
Added to shares of these 10 stocks: AEHR (+$7.2M), VCYT (+$6.9M), NVTS (+$6.7M), POWI (+$6.6M), VRT (+$6.2M), SIBN (+$5.9M), ATEC (+$5.4M), CIR (+$5.4M), EHC (+$5.3M), VECO (+$5.2M).
Started 32 new stock positions in PEP, DGII, NSSC, AORT, LFUS, WWD, SIBN, NVTS, VECO, TSM.
Reduced shares in these 10 stocks: CSTM (-$30M), , ACLS (-$5.8M), , , MXL, , SITM, MODG, DECK.
Sold out of its positions in ADTN, AVID, CALX, MODG, CLW, FC, GES, HALO, BEKE, KTB. MP, RCKY, SITM, SYNA, TITN, TWOU, UNVR, VVI, FN.
Oberweis Asset Management was a net buyer of stock by $141M.
Oberweis Asset Management has $823M in assets under management (AUM), dropping by 27.66%.
Central Index Key (CIK): 0000937886

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Portfolio Holdings for Oberweis Asset Management

Oberweis Asset Management holds 187 positions in its portfolio as reported in the June 2023 quarterly 13F filing

Company (Ticker)	Portfolio Weight	Valued At	Change in Shares	Share Count	Share Price
Constellium Se cl a (CSTM)	5.9	$48M	-38%	2.8M	17.20	View chart
Axcelis Technologies (ACLS)	5.4	$44M	-11%	240k	183.33	View chart
Aehr Test Systems (AEHR)	4.4	$36M	+24%	873k	41.25	View chart
Alphatec Holdings (ATEC)	2.1	$18M	+44%	981k	17.98	View chart
Impinj (PI)	2.0	$16M	+22%	179k	89.65	View chart
Lantheus Holdings Inc Common Stock Usd 0.01 (LNTH)	1.7	$14M	-6%	166k	83.92	View chart
Perion Network (PERI)	1.6	$13M	+10%	426k	30.67	View chart
Veracyte (VCYT)	1.5	$12M	+127%	482k	25.47	View chart
Deckers Outdoor Corporation (DECK)	1.5	$12M	-18%	23k	527.66	View chart
Crocs (CROX)	1.4	$12M		106k	112.44	View chart
Transmedics Group (TMDX)	1.3	$11M	+17%	127k	83.98	View chart
ICF International (ICFI)	1.2	$10M	+26%	80k	124.39	View chart
Belden (BDC)	1.1	$9.4M	+6%	99k	95.65	View chart
Veritiv Corp - When Issued (VRTV)	1.1	$9.1M	+7%	73k	125.61	View chart
Allegro Microsystems Ord (ALGM)	1.1	$8.8M	+58%	196k	45.14	View chart
Extreme Networks (EXTR)	1.1	$8.8M	+68%	338k	26.05	View chart
Amphastar Pharmaceuticals (AMPH)	1.0	$8.5M	-17%	148k	57.47	View chart
Clean Harbors (CLH)	0.9	$7.4M	-11%	45k	164.43	View chart
Tactile Systems Technology, In (TCMD)	0.9	$7.4M	+13%	295k	24.93	View chart
Bel Fuse (BELFB)	0.8	$7.0M		122k	57.41	View chart
Evolent Health (EVH)	0.8	$6.9M	+35%	228k	30.30	View chart
Model N (MODN)	0.8	$6.9M	+33%	195k	35.36	View chart
Visteon Corporation (VC)	0.8	$6.9M	+21%	48k	143.61	View chart
Blue Bird Corp (BLBD)	0.8	$6.8M	+136%	301k	22.48	View chart
Navitas Semiconductor Corp-a (NVTS)	0.8	$6.7M	NEW	640k	10.54	View chart
Ultra Clean Holdings (UCTT)	0.8	$6.6M	+28%	171k	38.46	View chart
Power Integrations (POWI)	0.8	$6.6M	NEW	69k	94.67	View chart
Merit Medical Systems (MMSI)	0.8	$6.5M	+78%	78k	83.64	View chart
Treace Med Concepts (TMCI)	0.8	$6.4M	+62%	252k	25.58	View chart
Axonics Modulation Technolog (AXNX)	0.8	$6.3M	+31%	125k	50.47	View chart
Onespan (OSPN)	0.8	$6.2M	+15%	417k	14.84	View chart
Adma Biologics (ADMA)	0.7	$6.2M	+42%	1.7M	3.69	View chart
Vertiv Holdings Llc vertiv holdings (VRT)	0.7	$6.2M	NEW	248k	24.77	View chart
Sterling Construction Company (STRL)	0.7	$6.0M	+8%	107k	55.80	View chart
Si-bone (SIBN)	0.7	$5.9M	NEW	220k	26.98	View chart
Seaworld Entertainment (SEAS)	0.7	$5.6M	+23%	100k	56.01	View chart
CIRCOR International (CIR)	0.7	$5.4M	NEW	95k	56.45	View chart
Playa Hotels & Resorts Nv (PLYA)	0.6	$5.3M	+71%	655k	8.14	View chart
Encompass Health Corp (EHC)	0.6	$5.3M	NEW	78k	67.71	View chart
Camtek (CAMT)	0.6	$5.3M	+25%	148k	35.63	View chart
CECO Environmental (CECO)	0.6	$5.2M	+76%	393k	13.36	View chart
Weatherford Intl Ordf (WFRD)	0.6	$5.2M	+168%	79k	66.42	View chart
Veeco Instruments (VECO)	0.6	$5.2M	NEW	203k	25.68	View chart
Inmode Ltd. Inmd (INMD)	0.6	$5.1M	+6%	137k	37.35	View chart
Chefs Whse (CHEF)	0.6	$5.1M	+36%	142k	35.76	View chart
Ciena Corporation (CIEN)	0.6	$5.0M		118k	42.49	View chart
Photronics (PLAB)	0.6	$5.0M	+15%	195k	25.79	View chart
FormFactor (FORM)	0.6	$4.9M	+40%	143k	34.22	View chart
Vectrus (VVX)	0.6	$4.8M	+25%	98k	49.56	View chart
Sun Ctry Airls Hldgs (SNCY)	0.6	$4.8M	NEW	213k	22.48	View chart
Mgp Ingredients Inc Common Sto (MGPI)	0.6	$4.8M	+40%	45k	106.28	View chart
Harmonic (HLIT)	0.6	$4.8M	+92%	294k	16.17	View chart
Digi International (DGII)	0.6	$4.8M	NEW	121k	39.39	View chart
Federal Signal Corporation (FSS)	0.6	$4.7M	+26%	74k	64.03	View chart
Allegheny Technologies Incorporated (ATI)	0.6	$4.7M	+46%	107k	44.23	View chart
RPC (RES)	0.6	$4.7M	+6%	657k	7.15	View chart
Magnite Ord (MGNI)	0.6	$4.7M	NEW	341k	13.65	View chart
Hexcel Corporation (HXL)	0.5	$4.5M	+70%	59k	76.02	View chart
Sp Plus (SP)	0.5	$4.4M	+30%	114k	39.11	View chart
Flowserve Corporation (FLS)	0.5	$4.4M	NEW	119k	37.15	View chart
Littelfuse (LFUS)	0.5	$4.4M	NEW	15k	291.31	View chart
Woodward Governor Company (WWD)	0.5	$4.4M	NEW	37k	118.91	View chart
Weave Communications (WEAV)	0.5	$4.4M	NEW	395k	11.11	View chart
Granite Construction (GVA)	0.5	$4.4M	+131%	110k	39.78	View chart
Allison Transmission Hldngs I (ALSN)	0.5	$4.4M	+16%	77k	56.46	View chart
Parsons Corporation (PSN)	0.5	$4.4M	NEW	90k	48.14	View chart
Ez (EZPW)	0.5	$4.2M	+36%	506k	8.38	View chart
Franklin Electric (FELE)	0.5	$4.2M	+18%	41k	102.90	View chart
Cabot Corporation (CBT)	0.5	$4.2M	+3%	62k	66.89	View chart
Cadence Design Systems (CDNS)	0.5	$4.1M		18k	234.52	View chart
Inter Parfums (IPAR)	0.5	$4.1M	+24%	30k	135.23	View chart
Acadia Healthcare (ACHC)	0.5	$4.1M	+47%	51k	79.64	View chart
Quaker Chemical Corporation (KWR)	0.5	$4.1M	+44%	21k	194.90	View chart
Zeta Global Holdings Corp (ZETA)	0.5	$4.1M	+122%	475k	8.54	View chart
Haemonetics Corporation (HAE)	0.5	$4.0M	+28%	48k	85.14	View chart
Maximus (MMS)	0.5	$4.0M	+17%	48k	84.51	View chart
Silicon Laboratories (SLAB)	0.5	$4.0M	+22%	26k	157.74	View chart
Allegiant Travel Company (ALGT)	0.5	$3.8M	NEW	30k	126.28	View chart
Modine Manufacturing (MOD)	0.5	$3.8M	+20%	115k	33.02	View chart
H&E Equipment Services (HEES)	0.5	$3.8M	+47%	82k	45.75	View chart
Frontdoor (FTDR)	0.5	$3.8M	NEW	118k	31.90	View chart
Firstcash Holdings (FCFS)	0.5	$3.7M	+87%	40k	93.33	View chart
Acm Research (ACMR)	0.5	$3.7M	+32%	286k	13.08	View chart
Haynes International (HAYN)	0.4	$3.7M	+42%	73k	50.82	View chart
Aviat Networks (AVNW)	0.4	$3.7M	+15%	110k	33.37	View chart
M/a (MTSI)	0.4	$3.7M	+26%	56k	65.53	View chart
CryoLife (AORT)	0.4	$3.6M	NEW	211k	17.19	View chart
Option Care Health (OPCH)	0.4	$3.6M	+13%	111k	32.49	View chart
Sunopta (STKL)	0.4	$3.6M	+27%	538k	6.69	View chart
O-i Glass (OI)	0.4	$3.6M	+40%	168k	21.33	View chart
Shoals Technologies Group Cl A Ord (SHLS)	0.4	$3.6M	NEW	140k	25.56	View chart
LSI Industries (LYTS)	0.4	$3.6M	+57%	284k	12.56	View chart
Employers Holdings (EIG)	0.4	$3.6M	+64%	95k	37.41	View chart
Jeld-wen Hldg (JELD)	0.4	$3.5M	NEW	202k	17.54	View chart
Applied Industrial Technologies (AIT)	0.4	$3.5M	+29%	24k	144.83	View chart
Spx Corp (SPXC)	0.4	$3.5M	NEW	42k	84.97	View chart
M/I Homes (MHO)	0.4	$3.5M	+66%	40k	87.19	View chart
NeoGenomics (NEO)	0.4	$3.4M	NEW	213k	16.07	View chart
Alight Cl A Ord (ALIT)	0.4	$3.3M	+49%	361k	9.24	View chart
Everi Hldgs (EVRI)	0.4	$3.3M	-23%	229k	14.46	View chart
Super Micro Computer (SMCI)	0.4	$3.3M	NEW	13k	249.25	View chart
Boot Barn Hldgs (BOOT)	0.4	$3.2M	-8%	38k	84.69	View chart
Earthstone Energy (ESTE)	0.4	$3.2M	+16%	223k	14.29	View chart
Monarch Casino & Resort (MCRI)	0.4	$3.2M	+27%	45k	70.45	View chart
Dynavax Technologies (DVAX)	0.4	$3.2M	+38%	245k	12.92	View chart
Preferred Bank, Los Angeles (PFBC)	0.4	$3.1M	+10%	57k	54.99	View chart
A10 Networks (ATEN)	0.4	$3.0M	-2%	209k	14.59	View chart
Unum (UNM)	0.4	$3.0M	+22%	63k	47.70	View chart
New Relic (NEWR)	0.4	$3.0M	+54%	45k	65.44	View chart
ABM Industries (ABM)	0.4	$2.9M	+18%	69k	42.65	View chart
International Seaways (INSW)	0.3	$2.9M	+45%	75k	38.24	View chart
Pdc Energy (PDCE)	0.3	$2.8M		40k	71.14	View chart
Oxford Industries (OXM)	0.3	$2.7M	+12%	28k	98.42	View chart
Patterson-UTI Energy (PTEN)	0.3	$2.7M	+38%	227k	11.97	View chart
International Money Express (IMXI)	0.3	$2.7M	+17%	108k	24.53	View chart
VSE Corporation (VSEC)	0.3	$2.6M	+23%	48k	54.69	View chart
Shockwave Med (SWAV)	0.3	$2.6M	+32%	9.1k	285.41	View chart
Alteryx (AYX)	0.3	$2.6M		56k	45.40	View chart
Inspire Med Sys (INSP)	0.3	$2.5M	+28%	7.7k	324.64	View chart
Catalyst Pharmaceutical Partners (CPRX)	0.3	$2.5M	+24%	183k	13.44	View chart
PDF Solutions (PDFS)	0.3	$2.5M	+26%	55k	45.10	View chart
Janus International Group In (JBI)	0.3	$2.4M	+5%	225k	10.66	View chart
Comstock Resources (CRK)	0.3	$2.4M		207k	11.60	View chart
Allied Motion Technologies (AMOT)	0.3	$2.3M		57k	39.94	View chart
Mrc Global Inc cmn (MRC)	0.3	$2.2M	+27%	223k	10.07	View chart
Insperity (NSP)	0.3	$2.1M	-5%	18k	118.96	View chart
LeMaitre Vascular (LMAT)	0.3	$2.1M	+10%	32k	67.28	View chart
Napco Security Systems (NSSC)	0.2	$2.1M	NEW	59k	34.65	View chart
Heritage Financial Corporation (HFWA)	0.2	$2.0M	+31%	127k	16.17	View chart
Destination Xl (DXLG)	0.2	$2.0M		416k	4.90	View chart
Vishay Precision (VPG)	0.2	$2.0M	+2%	55k	37.15	View chart
Matador Resources (MTDR)	0.2	$2.0M	+2%	38k	52.32	View chart
Novanta (NOVT)	0.2	$2.0M	+51%	11k	184.10	View chart
Alta Equipment Group (ALTG)	0.2	$1.9M		110k	17.33	View chart
Texas Roadhouse (TXRH)	0.2	$1.9M	+25%	17k	112.28	View chart
Amylyx Pharmaceuticals (AMLX)	0.2	$1.8M	+40%	85k	21.57	View chart
Nerdwallet (NRDS)	0.2	$1.8M	-18%	188k	9.41	View chart
Simpson Manufacturing (SSD)	0.2	$1.7M	NEW	13k	138.50	View chart
Mercantile Bank (MBWM)	0.2	$1.7M	+4%	63k	27.62	View chart
Comfort Systems USA (FIX)	0.2	$1.7M	NEW	11k	164.20	View chart
ScanSource (SCSC)	0.2	$1.7M	-20%	58k	29.56	View chart
Miniso Group Hold Adr Rep 4 Cl A Ord (MNSO)	0.2	$1.6M	-23%	97k	16.99	View chart
Magnolia Oil & Gas Corp magnolia oil & gas corp (MGY)	0.2	$1.6M		77k	20.90	View chart
Caleres (CAL)	0.2	$1.6M	+16%	67k	23.93	View chart
Spdr S&p 500 Etf (SPY)	0.2	$1.6M		3.6k	443.31	View chart
Brookline Ban (BRKL)	0.2	$1.6M	+19%	180k	8.74	View chart
First Merchants Corporation (FRME)	0.2	$1.5M	+30%	55k	28.23	View chart
Washington Federal (WAFD)	0.2	$1.5M		58k	26.52	View chart
Wingstop (WING)	0.2	$1.5M	NEW	7.6k	200.16	View chart
Nov (NOV)	0.2	$1.5M	+4%	95k	16.04	View chart
Full House Resorts (FLL)	0.2	$1.5M		223k	6.70	View chart
Murphy Usa (MUSA)	0.2	$1.5M	+20%	4.8k	311.11	View chart
Liberty Oilfield Services -a (LBRT)	0.2	$1.5M		110k	13.37	View chart
Li Auto (LI)	0.1	$1.2M	NEW	33k	35.10	View chart
Amtech Systems (ASYS)	0.1	$1.1M		119k	9.56	View chart
Pinduoduo (PDD)	0.1	$1.1M	-36%	16k	69.14	View chart
Taiwan Semiconductor Mfg (TSM)	0.1	$1.1M	NEW	11k	100.92	View chart
Apple (AAPL)	0.1	$1.1M		5.5k	193.96	View chart
Microsoft Corporation (MSFT)	0.1	$1.0M		3.1k	340.54	View chart
MaxLinear (MXL)	0.1	$994k	-77%	32k	31.56	View chart
Tencent Music Entertco L spon ad (TME)	0.1	$923k	-19%	125k	7.38	View chart
Nine Energy Service (NINE)	0.1	$903k	+4%	236k	3.83	View chart
KVH Industries (KVHI)	0.1	$832k		91k	9.14	View chart
Legend Biotech 2 Adr Rep Ord (LEGN)	0.1	$828k	NEW	12k	69.03	View chart
Cvd Equipment Corp equity (CVV)	0.1	$759k	+218%	103k	7.37	View chart
JPMorgan Chase & Co. (JPM)	0.1	$596k		4.1k	145.43	View chart
Johnson & Johnson (JNJ)	0.1	$449k		2.7k	165.50	View chart
Travelers Companies (TRV)	0.0	$394k		2.3k	173.69	View chart
MasterCard Incorporated (MA)	0.0	$372k	-2%	945.00	393.36	View chart
ResMed (RMD)	0.0	$317k		1.5k	218.50	View chart
Amgen (AMGN)	0.0	$307k		1.4k	221.98	View chart
Eli Lilly & Co. (LLY)	0.0	$286k		609.00	469.04	View chart
RF Industries (RFIL)	0.0	$262k		63k	4.15	View chart
Amazon (AMZN)	0.0	$261k		2.0k	130.36	View chart
McDonald's Corporation (MCD)	0.0	$251k		841.00	298.28	View chart
Wal-Mart Stores (WMT)	0.0	$250k		1.6k	157.14	View chart
Arcos Dorados Holdings (ARCO)	0.0	$238k	NEW	23k	10.25	View chart
Grupo Aeroportuario del Centro Nort (OMAB)	0.0	$229k	-10%	2.7k	84.84	View chart
Newmont Mining Corporation (NEM)	0.0	$219k	-13%	5.1k	42.66	View chart
Pepsi (PEP)	0.0	$203k	NEW	1.1k	185.22	View chart
Controladora Vuela Cia Spon Ad (VLRS)	0.0	$167k	-35%	12k	13.95	View chart
Dada Nexus 1 Ads Rep 4 Ord (DADA)	0.0	$121k	-93%	23k	5.31	View chart
Titan Oil & Gas	0.0	$0		10k	0.00	View chart
American Power Corp	0.0	$0		10k	0.00	View chart
Avatar Ventures (ATAR)	0.0	$0		10k	0.00	View chart
Xenacare Hldgs	0.0	$0		140k	0.00	View chart
A M R Corporation Xxx res	0.0	$0		18k	0.00	View chart

Past Filings by Oberweis Asset Management

SEC 13F filings are viewable for Oberweis Asset Management going back to 2010

Oberweis Asset Management 2023 Q2 filed Aug. 14, 2023
Oberweis Asset Management 2023 Q1 filed May 15, 2023
Oberweis Asset Management 2022 Q4 filed Feb. 14, 2023
Oberweis Asset Management 2022 Q3 filed Nov. 14, 2022
Oberweis Asset Management 2022 Q2 filed Aug. 15, 2022
Oberweis Asset Management 2022 Q1 filed May 16, 2022
Oberweis Asset Management 2021 Q4 filed Feb. 14, 2022
Oberweis Asset Management 2021 Q3 filed Nov. 15, 2021
Oberweis Asset Management 2021 Q2 filed Aug. 16, 2021
Oberweis Asset Management 2021 Q1 filed May 17, 2021
Oberweis Asset Management 2020 Q4 filed Feb. 16, 2021
Oberweis Asset Management 2020 Q3 filed Nov. 16, 2020
Oberweis Asset Management 2020 Q2 filed Aug. 14, 2020
Oberweis Asset Management 2020 Q1 filed May 15, 2020
Oberweis Asset Management 2019 Q4 filed Feb. 14, 2020
Oberweis Asset Management 2019 Q3 filed Nov. 14, 2019

View all past filings

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