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OAM

Oberweis Asset Management Portfolio holdings

AUM $3.39B
1-Year Est. Return 105.5%
This Fund
S&P 500
This Quarter Est. Return
-6.15%
1 Year Est. Return
+105.5%
3 Year Est. Return
+311.52%
5 Year Est. Return
+632.9%
10 Year Est. Return
+11,604.3%
AUM
$2.01B
AUM Growth
-$115M
Cap. Flow
+$108M
Cap. Flow %
5.41%
Top 10 Hldgs %
18.43%
Holding
220
New
24
Increased
67
Reduced
19
Closed
28

Top Buys

Rank Stock Value
1
AMBA icon
Ambarella
AMBA
+$26.4M
2
LTH icon
Life Time Group Holdings
LTH
+$23.4M
3
AAOI icon
Applied Optoelectronics
AAOI
+$22.4M
4
WAY
Waystar Holding Corp
WAY
+$19.1M
5
CRDO icon
Credo Technology Group
CRDO
+$18.7M

Top Sells

Rank Stock Value
1
ANF icon
Abercrombie & Fitch
ANF
+$22M
2
HIMS icon
Hims & Hers Health
HIMS
+$20.4M
3
WFRD icon
Weatherford International
WFRD
+$19.8M
4
LIVN icon
LivaNova
LIVN
+$19.3M
5
TNDM icon
Tandem Diabetes Care
TNDM
+$18.2M

Sector Composition

Rank Sector Weight
1 Technology 33.93%
2 Healthcare 19.79%
3 Industrials 14.45%
4 Consumer Discretionary 14.32%
5 Consumer Staples 5.84%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ADMA icon
1
ADMA Biologics
ADMA
$1.92B
$68M 3.39%
3,426,260
+83,700
+3% +$1.45M
CRDO icon
2
Credo Technology Group
CRDO
$39.7B
$50.6M 2.52%
1,259,915
+300,321
+31% +$18.7M
SN icon
3
SharkNinja
SN
$21B
$41.7M 2.08%
500,160
+870
+0.2% +$88.6K
EHC icon
4
Encompass Health
EHC
$11.2B
$37.5M 1.87%
370,720
+29,891
+9% +$2.92M
DOCS icon
5
Doximity
DOCS
$3.67B
$33.9M 1.69%
584,060
+10,960
+2% +$692K
AMBA icon
6
Ambarella
AMBA
$2.99B
$28.6M 1.43%
568,825
+386,025
+211% +$26.4M
ITRI icon
7
Itron
ITRI
$3.73B
$28.5M 1.42%
272,510
+73,400
+37% +$7.69M
SKYW icon
8
Skywest
SKYW
$4.11B
$27.9M 1.39%
319,150
– –
WAY
9
Waystar Holding Corp
WAY
$4.32B
$26.6M 1.33%
713,040
+481,740
+208% +$19.1M
G icon
10
Genpact
G
$5.3B
$26.4M 1.31%
523,600
– –
RMBS icon
11
Rambus
RMBS
$10.4B
$26.3M 1.31%
507,350
+97,950
+24% +$5.75M
LRN icon
12
Stride
LRN
$3.69B
$26.2M 1.31%
207,300
– –
DORM icon
13
Dorman Products
DORM
$4.01B
$25.1M 1.25%
208,520
+28,800
+16% +$3.67M
FLS icon
14
Flowserve
FLS
$9.25B
$25.1M 1.25%
513,184
+44,594
+10% +$2.53M
ZETA icon
15
Zeta Global
ZETA
$4.77B
$25M 1.25%
1,843,240
+3,200
+0.2% +$57.2K
SRAD icon
16
Sportradar
SRAD
$4.23B
$24.7M 1.23%
1,144,700
+415,800
+57% +$8.67M
FRSH icon
17
Freshworks
FRSH
$2.84B
$24.4M 1.22%
1,728,520
+901,920
+109% +$15.1M
LTH icon
18
Life Time Group Holdings
LTH
$9.42B
$24.1M 1.2%
+797,000
New +$23.4M
MTSI icon
19
MACOM Technology Solutions
MTSI
$20.4B
$23.3M 1.16%
232,520
+53,450
+30% +$6.51M
FTDR icon
20
Frontdoor
FTDR
$5.02B
$23M 1.15%
599,460
+131,960
+28% +$6.72M
VCYT icon
21
Veracyte
VCYT
$4.52B
$22.8M 1.14%
769,350
+20,630
+3% +$786K
PRMB
22
Primo Brands
PRMB
$8.24B
$22.4M 1.12%
632,400
– –
MMSI icon
23
Merit Medical Systems
MMSI
$4.43B
$22M 1.1%
208,560
-200
-0.1% -$20.6K
CLH icon
24
Clean Harbors
CLH
$16.1B
$21.7M 1.08%
110,320
+7,890
+8% +$1.73M
ICUI icon
25
ICU Medical
ICUI
$3.93B
$21.6M 1.08%
155,690
-990
-0.6% -$154K
1
2 3 4 5

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Oberweis Asset Management's Q1 2025 Portfolio in Review

As of Q1 2025, Oberweis Asset Management held 220 positions worth $2.01B, down 5.4% from $2.12B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

Oberweis Asset Management deployed $108M of net new capital in Q1 2025, opening 24 new positions and adding to 67 existing holdings. Its largest new stake was Life Time Group Holdings: 797,000 shares worth $24.1M.

By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 32% a quarter earlier, followed by Healthcare and Industrials.

On the sell side, the largest reduction was LivaNova, an estimated $19.3M trimmed.

  • Oberweis Asset Management's largest Q1 2025 buy was Life Time Group Holdings: 797,000 shares worth $24.1M.
  • Oberweis Asset Management added most to Ambarella in Q1 2025, an estimated $26.4M increase.
  • Oberweis Asset Management's biggest Q1 2025 reduction was LivaNova, cutting an estimated $19.3M.
  • Oberweis Asset Management fully exited Abercrombie & Fitch in Q1 2025, selling an estimated $22M.
  • Oberweis Asset Management's ten largest holdings make up 18% of its $2.01B portfolio in Q1 2025.
  • Oberweis Asset Management opened 24 new positions and closed 28 in Q1 2025.
  • Oberweis Asset Management's portfolio value fell 5.4% quarter-over-quarter to $2.01B.

Based on Oberweis Asset Management's 13F filing for Q1 2025, filed 15 May 2025.