AI Portfolio Summary
In 2026 Q1, Penbrook Management LLC maintained a portfolio of 105 distinct positions. The most significant new addition to the portfolio was PROTHENA CORP PLC SH, which now represents 2.00% of the total fund value. The fund also reduced its exposure to PLANET LABS PBC COM by 64.1%.
Total Positions
105
Quarter
2026 Q1
Top Holding
NVO (8.8%)
Top 10 Concentration
47.1%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 105
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NVO
NOVO-NORDISK A ...
|
Healthcare | 8.80% | 11.10% |
#1
Prev: #1
|
6.0 | -200 | -0.1% |
P
S
|
316,200 | $11,620,350 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
AMZN
AMAZON COM INC ...
|
Consumer Cyclical | 8.16% | 8.24% |
#2
Prev: #2
|
5.8 | no change | no change |
P
S
|
51,760 | $10,780,055 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
MSFT
MICROSOFT CORP ...
|
Technology | 6.24% | 7.59% |
#3
Prev: #3
|
4.0 | -505 | -2.2% |
P
S
|
22,245 | $8,234,431 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
GOOGL
ALPHABET INC CA...
|
Communication Services | 5.05% | 5.00% |
#4
Prev: #4
|
3.5 | no change | no change |
P
S
|
23,170 | $6,662,765 | 2015 Q3 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
GOOG
ALPHABET INC CA...
|
Communication Services | 4.90% | 4.88% |
#5
Prev: #5
|
3.5 | no change | no change |
P
S
|
22,554 | $6,469,840 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
MCO
MOODYS CORP COM
|
Financial Services | 4.49% | 4.79% |
#6
Prev: #6
|
2.8 | no change | no change |
P
S
|
13,600 | $5,933,000 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
PLAB
PHOTRONICS INC ...
|
Technology | 2.96% | 2.44% |
#7
1
Prev: #8
|
1.7 | -13,950 | -12.6% |
P
S
|
96,730 | $3,908,859 | 2017 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
PL
PLANET LABS PBC...
|
Industrials | 2.24% | 4.02% |
#8
1
Prev: #7
|
0.9 | -189,375 | -64.1% |
P
S
|
105,870 | $2,959,066 | 2023 Q2 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
AEHR
AEHR TEST SYS C...
|
Technology | 2.23% | 1.60% |
#9
4
Prev: #13
|
0.9 | -35,385 | -30.8% |
P
S
|
79,515 | $2,948,416 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
SA
SEABRIDGE GOLD ...
|
Basic Materials | 2.06% | 1.96% |
#10
1
Prev: #11
|
1.8 | no change | no change |
P
S
|
95,990 | $2,720,356 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
VET
VERMILION ENERG...
|
Energy | 2.06% | 1.14% |
#11
8
Prev: #19
|
1.8 | no change | no change |
P
S
|
197,825 | $2,717,719 | 2017 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
PRTA
PROTHENA CORP P...
|
Healthcare | 2.00% | — |
#12
Prev: #—
|
4.3 | 271,720 | no change |
NEW
|
271,720 | $2,641,118 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
VMD
VIEMED HEALTHCA...
|
Healthcare | 1.90% | 1.39% |
#13
2
Prev: #15
|
1.3 | 850 | 0.3% |
P
S
|
272,398 | $2,508,785 | 2023 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ELVA
ELECTROVAYA INC...
|
Industrials | 1.74% | 1.91% |
#14
2
Prev: #12
|
1.2 | -54,505 | -15.6% |
P
S
|
295,356 | $2,298,667 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
TRI
THOMSON REUTERS...
|
Industrials | 1.69% | 2.27% |
#15
6
Prev: #9
|
1.2 | -174 | -0.7% |
P
S
|
24,774 | $2,229,164 | 2018 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
BX
BLACKSTONE INC ...
|
Financial Services | 1.58% | 1.57% |
#16
2
Prev: #14
|
3.1 | 3,350 | 22.6% |
P
S
|
18,150 | $2,087,068 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ALKT
ALKAMI TECHNOLO...
|
Technology | 1.52% | 2.03% |
#17
7
Prev: #10
|
1.6 | no change | no change |
P
S
|
127,685 | $2,000,823 | 2023 Q3 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
CURI
CURIOSITYSTREAM...
|
Communication Services | 1.51% | 0.91% |
#18
6
Prev: #24
|
3.6 | 327,850 | 94.4% |
P
S
|
675,150 | $1,998,444 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
NNY
NUVEEN N Y MUN ...
|
Financial Services | 1.35% | 1.26% |
#19
3
Prev: #16
|
1.5 | no change | no change |
P
S
|
213,727 | $1,784,620 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
TRGP
TARGA RES CORP ...
|
Energy | 1.31% | 0.89% |
#20
5
Prev: #25
|
1.0 | -136 | -1.9% |
P
S
|
6,892 | $1,728,031 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
BRK/B
BERKSHIRE HATHA...
|
Financial Services | 1.20% | 1.16% |
#21
3
Prev: #18
|
1.0 | -50 | -1.5% |
P
S
|
3,300 | $1,581,360 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
CYRX
CRYOPORT INC CO...
|
Industrials | 1.16% | 0.35% |
#22
34
Prev: #56
|
3.5 | 132,940 | 251.6% |
P
S
|
185,775 | $1,538,217 | 2018 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
VZ
VERIZON COMMUNI...
|
Communication Services | 1.14% | 0.87% |
#23
5
Prev: #28
|
1.0 | -1,236 | -4.0% |
P
S
|
29,899 | $1,500,929 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ET
ENERGY TRANSFER...
|
Energy | 1.09% | 0.85% |
#24
5
Prev: #29
|
1.4 | no change | no change |
P
S
|
74,489 | $1,437,637 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
CSCO
CISCO SYS INC C...
|
Technology | 1.08% | 0.97% |
#25
2
Prev: #23
|
1.4 | no change | no change |
P
S
|
18,350 | $1,423,776 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
SONY
SONY GROUP CORP...
|
Technology | 1.07% | 1.21% |
#26
9
Prev: #17
|
1.4 | no change | no change |
P
S
|
68,500 | $1,417,950 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
WMB
WILLIAMS COS IN...
|
Energy | 1.05% | 0.79% |
#27
7
Prev: #34
|
1.4 | no change | no change |
P
S
|
19,130 | $1,392,281 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
MESO
MESOBLAST LTD S...
|
Healthcare | 1.01% | 1.09% |
#28
7
Prev: #21
|
0.9 | -500 | -0.6% |
P
S
|
87,075 | $1,339,213 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
MGNI
MAGNITE INC COM
|
Communication Services | 1.01% | 0.35% |
#29
29
Prev: #58
|
3.4 | 81,075 | 260.6% |
P
S
|
112,190 | $1,332,817 | 2024 Q3 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ADP
AUTOMATIC DATA ...
|
Technology | 0.97% | 1.12% |
#30
10
Prev: #20
|
1.4 | no change | no change |
P
S
|
6,300 | $1,280,034 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
EXTR
EXTREME NETWORK...
|
Technology | 0.95% | — |
#31
Prev: #—
|
3.9 | 83,525 | no change |
NEW
|
83,525 | $1,259,557 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
HESM
HESS MIDSTREAM ...
|
Energy | 0.88% | 0.72% |
#32
7
Prev: #39
|
1.4 | no change | no change |
P
S
|
30,055 | $1,168,237 | 2019 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ABNB
AIRBNB INC COM ...
|
Consumer Cyclical | 0.86% | 0.84% |
#33
3
Prev: #30
|
1.3 | no change | no change |
P
S
|
8,950 | $1,130,206 | 2022 Q2 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ACLS
AXCELIS TECHNOL...
|
Technology | 0.85% | 0.88% |
#34
7
Prev: #27
|
0.3 | -3,800 | -23.9% |
P
S
|
12,095 | $1,125,802 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ABBV
ABBVIE INC COM
|
Healthcare | 0.85% | 0.82% |
#35
4
Prev: #31
|
0.8 | -60 | -1.1% |
P
S
|
5,170 | $1,124,423 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
USAC
USA COMPRESSION...
|
Energy | 0.84% | 0.65% |
#36
5
Prev: #41
|
1.3 | no change | no change |
P
S
|
41,038 | $1,112,950 | 2019 Q2 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
SPY
STATE STREET SP...
|
ETF | 0.79% | 0.81% |
#37
4
Prev: #33
|
0.8 | -115 | -6.7% |
P
S
|
1,605 | $1,043,795 | 2014 Q2 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
OKE
ONEOK INC NEW C...
|
Energy | 0.77% | 0.57% |
#38
7
Prev: #45
|
1.3 | no change | no change |
P
S
|
11,310 | $1,022,310 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
DV
DOUBLEVERIFY HL...
|
Communication Services | 0.74% | 0.81% |
#39
7
Prev: #32
|
1.3 | no change | no change |
P
S
|
102,910 | $977,645 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
NPKI
NPK INTERNATION...
|
Energy | 0.74% | 0.55% |
#40
7
Prev: #47
|
1.3 | no change | no change |
P
S
|
67,250 | $974,452 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
META
META PLATFORMS ...
|
Communication Services | 0.74% | 0.77% |
#41
4
Prev: #37
|
1.3 | no change | no change |
P
S
|
1,700 | $972,621 | 2014 Q3 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
MRVL
MARVELL TECHNOL...
|
Technology | 0.73% | 0.57% |
#42
4
Prev: #46
|
1.3 | no change | no change |
P
S
|
9,730 | $963,756 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
NVDA
NVIDIA CORPORAT...
|
Technology | 0.69% | 0.67% |
#43
3
Prev: #40
|
1.3 | no change | no change |
P
S
|
5,223 | $910,891 | 2025 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
DAIO
DATA I O CORP C...
|
Technology | 0.68% | 0.78% |
#44
8
Prev: #36
|
1.3 | no change | no change |
P
S
|
356,850 | $902,830 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
SHEL
SHELL PLC SPON ...
|
Energy | 0.66% | 0.48% |
#45
7
Prev: #52
|
1.3 | no change | no change |
P
S
|
9,400 | $874,200 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
NVS
NOVARTIS AG SPO...
|
Healthcare | 0.64% | 0.53% |
#46
2
Prev: #48
|
0.8 | -70 | -1.2% |
P
S
|
5,540 | $846,235 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
CVE
CENOVUS ENERGY ...
|
Energy | 0.60% | 0.35% |
#47
10
Prev: #57
|
1.2 | no change | no change |
P
S
|
29,880 | $792,716 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
ASUR
ASURE SOFTWARE ...
|
Technology | 0.58% | 0.58% |
#48
4
Prev: #44
|
0.7 | 400 | 0.4% |
P
S
|
89,635 | $770,861 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
SGOL
ABRDN PHYSICAL ...
|
ETF | 0.58% | 0.49% |
#49
1
Prev: #50
|
1.2 | no change | no change |
P
S
|
17,155 | $765,456 | 2025 Q1 | 13F Filing | 2026-03-31 | 2026-04-21 | |||
|
BPOP
POPULAR INC COM...
|
Financial Services | 0.56% | 1.02% |
#50
28
Prev: #22
|
0.2 | -6,350 | -53.6% |
P
S
|
5,500 | $737,935 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-04-21 |
Showing 1-50 of 105 holdings