Penbrook Management LLC
Filing Date
Global Rank
#1,661
/ 3,406
▲ 3577
Top Industry
Drug Manufacturers - General
12.4%
3Y Alpha vs SPY
-7.2%
Period ended 31 days ago
Filed Jul 23, 2026 · 8d
26 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Cloned portfolio
+39.6%
SPY
+67.7%
Annualised alpha
-7.1%
Max drawdown
−28.1%
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.
Portfolio Concentration
96 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Top Position
10.3%
+1.0 pts
Top 5
34.0%
−0.7 pts
Top 10
44.5%
−2.3 pts
HHI
335
Diversified−8
Portfolio Trend
26 quarters · across all stocks
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 26.4% | $38,975,166 |
| Healthcare | 18.3% | $27,049,866 |
| Communication Services | 10.9% | $16,042,278 |
| Financial Services | 10.8% | $15,905,270 |
| Energy | 10.5% | $15,531,043 |
| Consumer Cyclical | 9.4% | $13,805,623 |
| Industrials | 9.1% | $13,444,530 |
| Basic Materials | 1.9% | $2,854,952 |
| Unclassified | 1.7% | $2,532,703 |
| Real Estate | 0.5% | $692,018 |
| Consumer Defensive | 0.4% | $634,478 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
18 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| CURI | CuriosityStream Inc. | +89,650 | 764,800 | $2,034,368 | |
| ELVA | Electrovaya Inc. | +30,875 | 326,231 | $3,425,425 | |
| IOVA | Iovance Biotherapeutics, Inc. | +19,500 | 61,945 | $257,691 | |
| PAR | Par Technology Corp | +17,985 | 53,760 | $936,499 | |
| AQST | Aquestive Therapeutics, Inc. | +17,735 | 43,300 | $180,128 | |
| CYRX | Cryoport, Inc. | +16,900 | 202,675 | $3,181,997 | |
| BLFS | Biolife Solutions Inc | +16,550 | 39,705 | $1,121,269 | |
| SA | Seabridge Gold Inc | +14,925 | 110,915 | $2,854,952 | |
| HTGC | Hercules Capital, Inc. | +14,327 | 29,387 | $463,432 | |
| ALKT | Alkami Technology, Inc. | +12,900 | 140,585 | $2,547,400 | |
| VMD | Viemed Healthcare, Inc. | +4,780 | 277,178 | $3,159,829 | |
| GBDC | GOLUB CAPITAL BDC, Inc. | +3,380 | 18,060 | $232,612 | |
| PAYS | Paysign, Inc. | +1,525 | 57,310 | $469,368 | |
| NPKI | NPK International Inc. | +575 | 67,825 | $1,079,095 | |
| VZ | Verizon Communications Inc | +525 | 30,424 | $1,288,152 | |
| EXTR | Extreme Networks Inc | +500 | 84,025 | $2,719,889 | |
| BMY | Bristol Myers Squibb Co | +365 | 6,615 | $381,156 | |
| NVDA | Nvidia Corp | +100 | 5,323 | $1,065,079 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
22 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| AEHR | Aehr Test Systems | −74,315 | 5,200 | $499,512 | |
| KOPN | Kopin Corp | −26,300 | 88,275 | $395,472 | |
| PL | Planet Labs PBC | −24,053 | 81,817 | $2,710,597 | |
| BLZE | Backblaze, Inc. | −18,450 | 53,700 | $851,682 | |
| OSS | One Stop Systems, Inc. | −7,865 | 38,875 | $706,747 | |
| PLAB | Photronics Inc | −7,675 | 89,055 | $2,896,959 | |
| ASUR | Asure Software Inc | −1,500 | 88,135 | $699,791 | |
| ACLS | Axcelis Technologies Inc | −1,200 | 10,895 | $2,064,057 | |
| DAIO | Data I/O Corp | −1,000 | 355,850 | $1,402,049 | |
| FBP | First Bancorp /Pr/ | −900 | 22,600 | $589,182 | |
| FNF | Fidelity National Financial, Inc. | −500 | 8,668 | $408,782 | |
| TRI | Thomson Reuters Corp /Can/ | −393 | 24,381 | $1,991,196 | |
| MSFT | Microsoft Corp | −325 | 21,920 | $8,176,598 | |
| DV | DoubleVerify Holdings, Inc. | −250 | 102,660 | $1,112,834 | |
| PROF | Profound Medical Corp. | −225 | 12,075 | $80,298 | |
| BPOP | Popular, Inc. | −200 | 5,300 | $870,154 | |
| TTI | Tetra Technologies Inc | −150 | 26,260 | $297,525 | |
| MGNI | Magnite, Inc. | −150 | 112,040 | $2,126,519 | |
| SGOL | abrdn Gold ETF Trust | −75 | 17,080 | $652,968 | |
| LINC | Lincoln Educational Services Corp | −25 | 12,715 | $634,478 | |
| ABBV | AbbVie Inc. | −18 | 5,152 | $1,296,449 | |
| BRK-B | Berkshire Hathaway Inc | −10 | 3,290 | $1,646,283 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
10 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| ALLT | Allot Ltd. | 275,295 | $2,436,360 | |
| BTE | Baytex Energy Corp. | 399,350 | $1,597,400 | |
| AMPL | Amplitude, Inc. | 48,705 | $372,593 | |
| RITM | Rithm Capital Corp. | 39,200 | $368,088 | |
| TER | Teradyne, Inc | 600 | $290,304 | |
| WLY | John Wiley & Sons, Inc. | 5,000 | $242,550 | |
| JPM | Jpmorgan Chase & Co | 660 | $216,037 | |
| FAF | First American Financial Corp | 3,000 | $205,770 | |
| SKYH | Sky Harbour Group Corp | 19,530 | $192,175 | |
| BNED | Barnes & Noble Education, Inc. | 15,000 | $188,400 | |
| No positions match the current search. | ||||
96 tracked positions ·
$147,467,927 total
· as of Jun 30, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Showing 1–50
of 96 positions by value
· page 1 of 2
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| NVO |
Novo Nordisk A S
Healthcare
|
Held | 316,200 | $15,158,628 | 10.28% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Held | 51,760 | $12,336,478 | 8.37% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Held | 23,170 | $8,280,262 | 5.61% | |
| MSFT |
Microsoft Corp
Technology
|
Reduced | 21,920 | $8,176,598 | 5.54% | |
| MCO |
Moodys Corp /De/
Financial Services
|
Held | 13,600 | $6,159,712 | 4.18% | |
| ELVA |
Electrovaya Inc.
Industrials
|
Added | 326,231 | $3,425,425 | 2.32% | |
| CYRX |
Cryoport, Inc.
Industrials
|
Added | 202,675 | $3,181,997 | 2.16% | |
| VMD |
Viemed Healthcare, Inc.
Healthcare
|
Added | 277,178 | $3,159,829 | 2.14% | |
| MRVL |
Marvell Technology, Inc.
Technology
|
Held | 9,730 | $2,898,469 | 1.97% | |
| PLAB |
Photronics Inc
Technology
|
Reduced | 89,055 | $2,896,959 | 1.96% | |
| SA |
Seabridge Gold Inc
Basic Materials
|
Added | 110,915 | $2,854,952 | 1.94% | |
| EXTR |
Extreme Networks Inc
Technology
|
Added | 84,025 | $2,719,889 | 1.84% | |
| PL |
Planet Labs PBC
Industrials
|
Reduced | 81,817 | $2,710,597 | 1.84% | |
| PRTA |
Prothena Corp Public Ltd Co
Healthcare
|
Held | 271,720 | $2,660,138 | 1.80% | |
| ALKT |
Alkami Technology, Inc.
Technology
|
Added | 140,585 | $2,547,400 | 1.73% | |
| ALLT |
Allot Ltd.
Technology
|
NEW | 275,295 | $2,436,360 | 1.65% | |
| CSCO |
Cisco Systems, Inc.
Technology
|
Held | 18,350 | $2,155,391 | 1.46% | |
| BX |
Blackstone Inc.
Financial Services
|
Held | 18,150 | $2,135,710 | 1.45% | |
| MGNI |
Magnite, Inc.
Communication Services
|
Reduced | 112,040 | $2,126,519 | 1.44% | |
| ACLS |
Axcelis Technologies Inc
Technology
|
Reduced | 10,895 | $2,064,057 | 1.40% | |
| CURI |
CuriosityStream Inc.
Communication Services
|
Added | 764,800 | $2,034,368 | 1.38% | |
| TRI |
Thomson Reuters Corp /Can/
Industrials
|
Reduced | 24,381 | $1,991,196 | 1.35% | |
| NNY |
Nuveen New York Municipal Value Fund
Financial Services
|
Held | 213,727 | $1,867,973 | 1.27% | |
| VET |
Vermilion Energy Inc.
Energy
|
Held | 197,825 | $1,853,620 | 1.26% | |
| TRGP |
Targa Resources Corp.
Energy
|
Held | 6,892 | $1,848,020 | 1.25% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Reduced | 3,290 | $1,646,283 | 1.12% | |
| BTE |
Baytex Energy Corp.
Energy
|
NEW | 399,350 | $1,597,400 | 1.08% | |
| ET |
Energy Transfer LP
Energy
|
Held | 74,489 | $1,424,229 | 0.97% | |
| WMB |
Williams Companies, Inc.
Energy
|
Held | 19,130 | $1,422,124 | 0.96% | |
| ADP |
Automatic Data Processing Inc
Technology
|
Held | 6,300 | $1,410,885 | 0.96% | |
| DAIO |
Data I/O Corp
Technology
|
Reduced | 355,850 | $1,402,049 | 0.95% | |
| SONY |
Sony Group Corp
Technology
|
Held | 68,500 | $1,374,110 | 0.93% | |
| ABBV |
AbbVie Inc.
Healthcare
|
Reduced | 5,152 | $1,296,449 | 0.88% | |
| VZ |
Verizon Communications Inc
Communication Services
|
Added | 30,424 | $1,288,152 | 0.87% | |
| ABNB |
Airbnb, Inc.
Consumer Cyclical
|
Held | 8,950 | $1,280,745 | 0.87% | |
| SPY |
Spdr S&P 500 ETF Trust
|
Held | 1,605 | $1,198,565 | 0.81% | |
| MESO |
Mesoblast Ltd
Healthcare
|
Held | 87,075 | $1,178,124 | 0.80% | |
| HESM |
Hess Midstream LP
Energy
|
Held | 30,055 | $1,130,068 | 0.77% | |
| BLFS |
Biolife Solutions Inc
Healthcare
|
Added | 39,705 | $1,121,269 | 0.76% | |
| DV |
DoubleVerify Holdings, Inc.
Communication Services
|
Reduced | 102,660 | $1,112,834 | 0.75% | |
| USAC |
USA Compression Partners, LP
Energy
|
Held | 41,038 | $1,082,992 | 0.73% | |
| NPKI |
NPK International Inc.
Industrials
|
Added | 67,825 | $1,079,095 | 0.73% | |
| NVDA |
Nvidia Corp
Technology
|
Added | 5,323 | $1,065,079 | 0.72% | |
| OKE |
Oneok Inc /New/
Energy
|
Held | 11,310 | $983,291 | 0.67% | |
| META |
Meta Platforms, Inc.
Communication Services
|
Held | 1,700 | $957,593 | 0.65% | |
| KLIC |
Kulicke & Soffa Industries Inc
Technology
|
Held | 7,100 | $949,696 | 0.64% | |
| PAR |
Par Technology Corp
Technology
|
Added | 53,760 | $936,499 | 0.64% | |
| BPOP |
Popular, Inc.
Financial Services
|
Reduced | 5,300 | $870,154 | 0.59% | |
| NVS |
Novartis AG
Healthcare
|
Held | 5,540 | $868,228 | 0.59% | |
| BLZE |
Backblaze, Inc.
Technology
|
Reduced | 53,700 | $851,682 | 0.58% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.