Penbrook Management LLC — 13F holdings

Penbrook Management LLC reported 102 holdings worth $169M in its 13F filing for Q3 2026, filed October 16, 2026. That's up 8.1% from $157M in Q2 2026, when it reported 101 holdings. Its 10 largest positions make up 50.4% of the portfolio.

Penbrook Management LLC's largest positions in Q3 2026

1. TRGP TARGA RES CORP — $17.9M (10.6%) · cut 4%
2. AMZN AMAZON COM INC — $12.9M (7.6%) · unchanged
3. NVO NOVO-NORDISK A S — $11.8M (7.0%) · cut 1%
4. MSFT MICROSOFT CORP — $11.1M (6.6%) · unchanged
5. GOOGL ALPHABET INC — $7.97M (4.7%) · unchanged
6. GOOG ALPHABET INC — $7.65M (4.5%) · unchanged
7. MCO MOODYS CORP — $6.18M (3.6%) · unchanged
8. CYRX CRYOPORT INC — $3.50M (2.1%) · unchanged
9. ALLT ALLOT LTD — $3.19M (1.9%) · added 37%
10. SA SEABRIDGE GOLD INC — $3.14M (1.9%) · unchanged
11. PLAB PHOTRONICS INC — $2.73M (1.6%) · unchanged
12. MGNI MAGNITE INC — $2.67M (1.6%) · cut 6%
13. MRVL MARVELL TECHNOLOGY INC — $2.57M (1.5%) · unchanged
14. VMD VIEMED HEALTHCARE INC — $2.51M (1.5%) · unchanged
15. ELVA ELECTROVAYA INC — $2.49M (1.5%) · added 16%
16. TRI THOMSON REUTERS CORP — $2.38M (1.4%) · unchanged
17. PRTA PROTHENA CORP PLC — $2.28M (1.3%) · unchanged
18. VET VERMILION ENERGY INC — $2.26M (1.3%) · unchanged
19. BX Blackstone Inc — $2.03M (1.2%) · unchanged
20. CSCO CISCO SYS INC — $1.98M (1.2%) · unchanged

What Penbrook Management LLC bought in Q3 2026

6 new positions and 12 positions added to.

1. SKYH SKY HARBOUR GROUP CORPORATIO — added, about $1.68M
2. ONEOK INC NEW — new position, about $964K
3. ALLT ALLOT LTD — added, about $862K
4. CVE Cenovus Energy Inc — added, about $398K
5. ELVA ELECTROVAYA INC — added, about $350K
6. LMT LOCKHEED MARTIN CORP — new position, about $280K
7. TTI TETRA TECHNOLOGIES INC DEL — added, about $255K
8. ExxonMobil Holdings Corp — new position, about $208K
9. NEM NEWMONT CORP — new position, about $205K
10. PAR PAR TECHNOLOGY CORP — added, about $137K

What Penbrook Management LLC sold in Q3 2026

5 positions sold out and 20 reduced.

1. DV DOUBLEVERIFY HLDGS INC — sold out, about $1.38M
2. CURI CURIOSITYSTREAM INC — cut 49%, about $1.09M
3. OKE ONEOK INC NEW — sold out, about $964K
4. TRGP TARGA RES CORP — cut 4%, about $743K
5. IOVA IOVANCE BIOTHERAPEUTICS INC — cut 33%, about $308K
6. PAYS PAYSIGN INC — cut 31%, about $241K
7. AM Antero Midstream Corp — sold out, about $200K
8. FAF FIRST AMERN FINL CORP — sold out, about $182K
9. NVO NOVO-NORDISK A S — cut 1%, about $178K
10. MGNI MAGNITE INC — cut 6%, about $160K

Penbrook Management LLC portfolio value by quarter

• Q3 2026: $169M in 102 holdings
• Q2 2026: $157M in 101 holdings
• Q1 2026: $132M in 93 holdings
• Q4 2025: $145M in 97 holdings
• Q3 2025: $143M in 104 holdings
• Q2 2025: $132M in 107 holdings
• Q1 2025: $132M in 107 holdings
• Q4 2024: $147M in 110 holdings

What does Penbrook Management LLC own?

Its largest positions in Q3 2026 were TRGP, AMZN, NVO, MSFT, GOOGL, out of 102 holdings worth $169M.

What did Penbrook Management LLC buy last quarter?

In Q3 2026 it opened 6 new positions and added to 12; the largest buys were SKYH, ONEOK INC NEW, ALLT.

What did Penbrook Management LLC sell last quarter?

In Q3 2026 it sold out of 5 positions and reduced 20, including DV, OKE, AM.