Penbrook Management LLC

CIK

1381055

Location

NEW YORK, NY

Portfolio Value

Small $147,467,927

Diversification

Diversified

Filing Date

Global Rank

#5,274 / 8,700 ▲ 2016

Top Industry

Drug Manufacturers - General 12.4%

Period ended 3 months ago

Filed Jul 23, 2026 · 53d

26 quarters · since Mar 2020

Portfolio Concentration

96 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

10.3%

+0.3 pts

Top 5

34.0%

−3.7 pts

Top 10

44.5%

−4.7 pts

HHI

335

Diversified−46

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	26.4%	$38,975,166	26
Healthcare	18.3%	$27,049,866	13
Communication Services	10.9%	$16,042,278	7
Financial Services	10.8%	$15,905,270	15
Energy	10.7%	$15,828,568	18
Consumer Cyclical	9.4%	$13,805,623	3
Industrials	8.9%	$13,147,005	6
Basic Materials	1.9%	$2,854,952	1
Unclassified	1.7%	$2,532,703	3
Real Estate	0.5%	$692,018	3
Consumer Defensive	0.4%	$634,478	1

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

18 positions

Ticker	Company	Δ Shares	Shares	Value
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

23 positions

Ticker	Company	Δ Shares	Shares	Value
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
GOOGL	Alphabet Inc.	−22,554	23,170	$8,280,262
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
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.

Sold Out

Positions the filer fully exited

5 positions

Ticker	Company	Shares	Value
ABI	VictoryShares Pioneer Asset-Based Income ETF	1,670	$320,506
BWX	State Street SPDR Bloomberg International Treasury Bond ETF	3,180	$243,397
XOM	ExxonMobil Holdings Corp	1,280	$217,164
NKE	NIKE, Inc.	3,960	$209,167
XGN	Exagen Inc.	13,330	$39,990
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

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	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVO	Novo Nordisk A S Healthcare	Held	316,200	0	$15,158,628	+30.4%	10.28%
AMZN	Amazon Com Inc Consumer Cyclical	Held	51,760	0	$12,336,478	+14.4%	8.37%
GOOGL	Alphabet Inc. Communication Services	Reduced	23,170	-22,554	$8,280,262	−36.9%	5.61%
MSFT	Microsoft Corp Technology	Reduced	21,920	-325	$8,176,598	−0.7%	5.54%
MCO	Moodys Corp /De/ Financial Services	Held	13,600	0	$6,159,712	+3.8%	4.18%
ELVA	Electrovaya Inc. Industrials	Added	326,231	+30,875	$3,425,425	+48.3%	2.32%
CYRX	Cryoport, Inc. Industrials	Added	202,675	+16,900	$3,181,997	+106.9%	2.16%
VMD	Viemed Healthcare, Inc. Healthcare	Added	277,178	+4,780	$3,159,829	+26.0%	2.14%
MRVL	Marvell Technology, Inc. Technology	Held	9,730	0	$2,898,469	+200.7%	1.97%
PLAB	Photronics Inc Technology	Reduced	89,055	-7,675	$2,896,959	−25.9%	1.96%
SA	Seabridge Gold Inc Basic Materials	Added	110,915	+14,925	$2,854,952	+4.9%	1.94%
EXTR	Extreme Networks Inc Technology	Added	84,025	+500	$2,719,889	+115.9%	1.84%
PL	Planet Labs PBC Industrials	Reduced	81,817	-24,053	$2,710,597	−8.4%	1.84%
PRTA	Prothena Corp Public Ltd Co Healthcare	Held	271,720	0	$2,660,138	+0.7%	1.80%
ALKT	Alkami Technology, Inc. Technology	Added	140,585	+12,900	$2,547,400	+27.3%	1.73%
ALLT	Allot Ltd. Technology	NEW	275,295	NEW	$2,436,360	NEW	1.65%
CSCO	Cisco Systems, Inc. Technology	Held	18,350	0	$2,155,391	+51.4%	1.46%
BX	Blackstone Inc. Financial Services	Held	18,150	0	$2,135,710	+2.3%	1.45%
MGNI	Magnite, Inc. Communication Services	Reduced	112,040	-150	$2,126,519	+59.6%	1.44%
ACLS	Axcelis Technologies Inc Technology	Reduced	10,895	-1,200	$2,064,057	+83.3%	1.40%
CURI	CuriosityStream Inc. Communication Services	Added	764,800	+89,650	$2,034,368	+1.8%	1.38%
TRI	Thomson Reuters Corp /Can/ Industrials	Reduced	24,381	-393	$1,991,196	−10.7%	1.35%
NNY	Nuveen New York Municipal Value Fund Financial Services	Held	213,727	0	$1,867,973	+4.7%	1.27%
VET	Vermilion Energy Inc. Energy	Held	197,825	0	$1,853,620	−32.0%	1.26%
TRGP	Targa Resources Corp. Energy	Held	6,892	0	$1,848,020	+6.9%	1.25%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	3,290	-10	$1,646,283	+4.1%	1.12%
BTE	Baytex Energy Corp. Energy	NEW	399,350	NEW	$1,597,400	NEW	1.08%
ET	Energy Transfer LP Energy	Held	74,489	0	$1,424,229	−0.9%	0.97%
WMB	Williams Companies, Inc. Energy	Held	19,130	0	$1,422,124	+2.1%	0.96%
ADP	Automatic Data Processing Inc Technology	Held	6,300	0	$1,410,885	+10.2%	0.96%
DAIO	Data I/O Corp Technology	Reduced	355,850	-1,000	$1,402,049	+55.3%	0.95%
SONY	Sony Group Corp Technology	Held	68,500	0	$1,374,110	−3.1%	0.93%
ABBV	AbbVie Inc. Healthcare	Reduced	5,152	-18	$1,296,449	+15.3%	0.88%
VZ	Verizon Communications Inc Communication Services	Added	30,424	+525	$1,288,152	−14.2%	0.87%
ABNB	Airbnb, Inc. Consumer Cyclical	Held	8,950	0	$1,280,745	+13.3%	0.87%
SPY	Spdr S&P 500 ETF Trust	Held	1,605	0	$1,198,565	+14.8%	0.81%
MESO	Mesoblast Ltd Healthcare	Held	87,075	0	$1,178,124	−12.0%	0.80%
HESM	Hess Midstream LP Energy	Held	30,055	0	$1,130,068	−3.3%	0.77%
BLFS	Biolife Solutions Inc Healthcare	Added	39,705	+16,550	$1,121,269	+153.8%	0.76%
DV	DoubleVerify Holdings, Inc. Communication Services	Reduced	102,660	-250	$1,112,834	+13.8%	0.75%
USAC	USA Compression Partners, LP Energy	Held	41,038	0	$1,082,992	−2.7%	0.73%
NPKI	NPK International Inc. Industrials	Added	67,825	+575	$1,079,095	+10.7%	0.73%
NVDA	Nvidia Corp Technology	Added	5,323	+100	$1,065,079	+16.9%	0.72%
OKE	Oneok Inc /New/ Energy	Held	11,310	0	$983,291	−3.8%	0.67%
META	Meta Platforms, Inc. Communication Services	Held	1,700	0	$957,593	−1.5%	0.65%
KLIC	Kulicke & Soffa Industries Inc Technology	Held	7,100	0	$949,696	+103.5%	0.64%
PAR	Par Technology Corp Technology	Added	53,760	+17,985	$936,499	+96.4%	0.64%
BPOP	Popular, Inc. Financial Services	Reduced	5,300	-200	$870,154	+17.9%	0.59%
NVS	Novartis AG Healthcare	Held	5,540	0	$868,228	+2.6%	0.59%
BLZE	Backblaze, Inc. Technology	Reduced	53,700	-18,450	$851,682	+242.2%	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.