Penbrook Management LLC 13F holdings
Penbrook Management LLC reported 100 positions with a total reported value of $156.8M as of 2026-06-30, in its 13F for Q2 2026, filed 2026-07-23. Top holdings by reported value: GOOGL ALPHABET INC CAP STK CL A (10.4%), NVO NOVO-NORDISK A S ADR (9.7%), AMZN AMAZON COM INC (7.9%), MSFT MICROSOFT CORP (5.2%), MCO MOODYS CORP (3.9%). Against 2026-03-31 it opened 16 new positions and exited 8. Next 13F due by 2026-11-14, the legal deadline 45 days after the quarter ending 2026-09-30.
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Top holdings
25 largest of 100 positions · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| GOOGL ALPHABET INC CAP STK CL A | 45,724 | $16.2M | 10.4% |
| NVO NOVO-NORDISK A S ADR | 316,200 | $15.2M | 9.7% |
| AMZN AMAZON COM INC | 51,760 | $12.3M | 7.9% |
| MSFT MICROSOFT CORP | 21,920 | $8.2M | 5.2% |
| MCO MOODYS CORP | 13,600 | $6.2M | 3.9% |
| ELVA ELECTROVAYA INC | 326,231 | $3.4M | 2.2% |
| CYRX CRYOPORT INC COM PAR $0.001 | 202,675 | $3.2M | 2.0% |
| VMD VIEMED HEALTHCARE INC | 277,178 | $3.2M | 2.0% |
| MRVL MARVELL TECHNOLOGY INC | 9,730 | $2.9M | 1.8% |
| PLAB PHOTRONICS INC | 89,055 | $2.9M | 1.8% |
| SA SEABRIDGE GOLD INC | 110,915 | $2.9M | 1.8% |
| EXTR EXTREME NETWORKS INC | 84,025 | $2.7M | 1.7% |
| PL PLANET LABS PBC COM CL A | 81,817 | $2.7M | 1.7% |
| PROTHENA CORP PLC SHS | 271,720 | $2.7M | 1.7% |
| ALKT ALKAMI TECHNOLOGY INC | 140,585 | $2.5M | 1.6% |
| ALLT ALLOT LTD SHS | 275,295 | $2.4M | 1.6% |
| CSCO CISCO SYS INC | 18,350 | $2.2M | 1.4% |
| BX BLACKSTONE INC | 18,150 | $2.1M | 1.4% |
| MGNI MAGNITE INC | 112,040 | $2.1M | 1.4% |
| ACLS AXCELIS TECHNOLOGIES INC | 10,895 | $2.1M | 1.3% |
| CURI CURIOSITYSTREAM INC COM CL A | 764,800 | $2.0M | 1.3% |
| TRI THOMSON REUTERS CORP | 24,381 | $2.0M | 1.3% |
| NUVEEN N Y MUN VALUE FD | 213,727 | $1.9M | 1.2% |
| VET VERMILION ENERGY INC | 197,825 | $1.9M | 1.2% |
| TRGP TARGA RES CORP | 6,892 | $1.8M | 1.2% |
SEC FORM 13F · Q2 2026 · VALUES AS REPORTED, NOT PRICES
New positions this quarter
Held at 2026-06-30, not at 2026-03-31 · 16 in all · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| ALLT ALLOT LTD SHS | 275,295 | $2.4M | 1.6% |
| NUVEEN N Y MUN VALUE FD | 213,727 | $1.9M | 1.2% |
| BTE BAYTEX ENERGY CORP | 399,350 | $1.6M | 1.0% |
| WILLIAMS COS INC | 19,130 | $1.4M | 0.9% |
| LINCOLN EDL SVCS CORP | 12,715 | $634.5K | 0.4% |
| ISHARES 20 YEAR TREASURY BOND ETF | 5,510 | $476.2K | 0.3% |
| FRANKLIN MASTER INTER INCOME SH BEN INT | 147,063 | $475.0K | 0.3% |
| FIDELITY NATL FINL INC | 8,668 | $408.8K | 0.3% |
| AMPL AMPLITUDE INC COM CL A | 48,705 | $372.6K | 0.2% |
| RITM RITHM CAPITAL CORP | 39,200 | $368.1K | 0.2% |
| TER TERADYNE INC | 600 | $290.3K | 0.2% |
| WLY WILEY JOHN & SONS INC CL A | 5,000 | $242.6K | 0.2% |
| JPM JPMORGAN CHASE & CO | 660 | $216.0K | 0.1% |
| FIRST AMERN FINL CORP | 3,000 | $205.8K | 0.1% |
| SKYH SKY HARBOUR GROUP CORPORATION COM CL A | 19,530 | $192.2K | 0.1% |
| BNED BARNES & NOBLE ED INC | 15,000 | $188.4K | 0.1% |
Sold out
Held at 2026-03-31, gone by 2026-06-30 · 8 in all · reported value as of 2026-03-31
| Holding | Shares 2026-03-31 | Reported value | % of portfolio then |
|---|---|---|---|
| NUVEEN N Y MUN VALUE FD COM | 213,727 | $1.8M | 1.4% |
| WILLIAMS COS INC COM | 19,130 | $1.4M | 1.1% |
| LINCOLN EDL SVCS CORP COM | 12,740 | $518.3K | 0.4% |
| PUTNAM MASTER INTER INCOME TR SH BEN INT | 147,063 | $480.9K | 0.4% |
| FIDELITY NATL FINL INC COM SHS | 9,168 | $425.2K | 0.3% |
| XOM EXXON MOBIL CORP COM | 1,280 | $217.2K | 0.2% |
| NKE NIKE INC CL B | 3,960 | $209.2K | 0.2% |
| XGN EXAGEN INC COM | 13,330 | $40.0K | <0.1% |
Biggest increases and decreases
Positions held at both quarter ends, by change in shares · reported value as of 2026-06-30
Increases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| BLFS BIOLIFE SOLUTIONS INC | 23,155 | 39,705 | +71.5% | $1.1M |
| SA SEABRIDGE GOLD INC | 95,990 | 110,915 | +15.5% | $2.9M |
| ELVA ELECTROVAYA INC | 295,356 | 326,231 | +10.5% | $3.4M |
| PAR PAR TECHNOLOGY CORP | 35,775 | 53,760 | +50.3% | $936.5K |
| CYRX CRYOPORT INC COM PAR $0.001 | 185,775 | 202,675 | +9.1% | $3.2M |
| CURI CURIOSITYSTREAM INC COM CL A | 675,150 | 764,800 | +13.3% | $2.0M |
| ALKT ALKAMI TECHNOLOGY INC | 127,685 | 140,585 | +10.1% | $2.5M |
| HTGC HERCULES CAPITAL INC | 15,060 | 29,387 | +95.1% | $463.4K |
| IOVA IOVANCE BIOTHERAPEUTICS INC | 42,445 | 61,945 | +45.9% | $257.7K |
| AQST AQUESTIVE THERAPEUTICS INC | 25,565 | 43,300 | +69.4% | $180.1K |
| VMD VIEMED HEALTHCARE INC | 272,398 | 277,178 | +1.8% | $3.2M |
| GBDC GOLUB CAP BDC INC | 14,680 | 18,060 | +23.0% | $232.6K |
Decreases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| AEHR AEHR TEST SYS | 79,515 | 5,200 | -93.5% | $499.5K |
| PL PLANET LABS PBC COM CL A | 105,870 | 81,817 | -22.7% | $2.7M |
| BLZE BACKBLAZE INC COM CL A | 72,150 | 53,700 | -25.6% | $851.7K |
| PLAB PHOTRONICS INC | 96,730 | 89,055 | -7.9% | $2.9M |
| ACLS AXCELIS TECHNOLOGIES INC | 12,095 | 10,895 | -9.9% | $2.1M |
| OSS ONE STOP SYS INC | 46,740 | 38,875 | -16.8% | $706.7K |
| MSFT MICROSOFT CORP | 22,245 | 21,920 | -1.5% | $8.2M |
| KOPN KOPIN CORP | 114,575 | 88,275 | -23.0% | $395.5K |
| BPOP POPULAR INC COM NEW | 5,500 | 5,300 | -3.6% | $870.2K |
| TRI THOMSON REUTERS CORP | 24,774 | 24,381 | -1.6% | $2.0M |
| FNLC FIRST BANCORP CORPORATION | 23,500 | 22,600 | -3.8% | $589.2K |
| ASUR ASURE SOFTWARE INC | 89,635 | 88,135 | -1.7% | $699.8K |
CIK 1381055 · 13F FILINGS ON EDGAR · INFORMATIONAL ONLY
