Samjo Management, LLC — 13F Holdings & Portfolio
CIK 1986590 · latest 13F-HR filed 2026-08-14
Samjo Management, LLC manages $293.0M in 13F-reported U.S. long-equity assets across 83 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are PDFS (7.19%), PDFS (6.06%), GENI (5.57%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 13 new positions and exited 10; 23 existing positions rose in reported value and 11 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
3 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 62.4%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 23, 2026.
16TH FLOOR
NEW YORK, NY 10022
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| DRUCKER, DAVID, J Control | MEMBER since May 2023 | 25–50% | Individual |
| WIENER, ANDREW, NOLAN Control | MANAGING MEMBER AND CHIEF COMPLIANCE OFFICER since May 2023 | 25–50% | Individual |
| WIENER, ALLYSON, S | MEMBER since May 2023 | 25–50% | Individual |
Ownership & leadership changes · 1 filing with changes since May 8, 2023
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- ChangedDRUCKER, DAVID, J · ownership 5–10% → 25–50%
- ListedDRUCKER, DAVID, J · MEMBER · 5–10% · control person
- ListedWIENER, ALLYSON, S · MEMBER · 25–50%
- ListedWIENER, ANDREW, NOLAN · MANAGING MEMBER AND CHIEF COMPLIANCE OFFICER · 25–50% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- GENIUS SPORTS LIMITED$13.2M +79.1%
- PAR TECHNOLOGY CORP$10.1M +246.5%
- AMBARELLA INC$9.6M +448.4%
- PDF SOLUTIONS INC$8.7M +29.0%
- POWERFLEET INC$7.8M +63.7%
Top Trims
- ARTERIS INC-$2.3M -12.2%
- SLB LIMITED-$1.1M -9.8%
- NEOGEN CORP-$538.4K -20.2%
- KKR & CO INC-$361.2K -10.2%
- WALMART INC-$257.7K -8.9%
New Positions
- FLUOR CORP$6.1M
- TIGO ENERGY INC$2.7M
- FLOTEK INDUSTRIES INC$2.2M
- CRYOPORT INC$2.0M
- KORNIT DIGITAL LTD$1.5M
Exited Positions
- QXO INC$6.1M
- ASTRAZENECA PLC$4.8M
- MDXHEALTH SA$3.3M
- ROCKET COS INC$3.2M
- NEOGENOMICS INC$2.3M
Samjo Management, LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | PDF SOLUTIONS INC | PDFS | 693282105 | $21.1M | 7.19% | 297,600 | SH |
| 2 | PDF SOLUTIONS INC | PDFS | 693282105 | $17.7M | 6.06% | 250,685 | SH |
| 3 | GENIUS SPORTS LIMITED | GENI | G3934V109 | $16.3M | 5.57% | 2,695,000 | SH |
| 4 | GENIUS SPORTS LIMITED | GENI | G3934V109 | $13.4M | 4.59% | 2,218,050 | SH |
| 5 | ZETA GLOBAL HOLDINGS CORP | ZETA | 98956A105 | $10.6M | 3.63% | 540,465 | SH |
| 6 | POWERFLEET INC | AIOT | 73931J109 | $10.6M | 3.61% | 2,760,000 | SH |
| 7 | INSPIRED ENTMT INC | INSE | 45782N108 | $9.6M | 3.29% | 1,168,500 | SH |
| 8 | POWERFLEET INC | AIOT | 73931J109 | $9.5M | 3.25% | 2,494,422 | SH |
| 9 | ARTERIS INC | AIP | 04302A104 | $9.2M | 3.13% | 189,000 | SH |
| 10 | INSPIRED ENTMT INC | INSE | 45782N108 | $8.7M | 2.97% | 1,055,400 | SH |
| 11 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $7.9M | 2.69% | 15,770 | SH |
| 12 | PAR TECHNOLOGY CORP | PAR | 698884103 | $7.8M | 2.64% | 444,900 | SH |
| 13 | ARTERIS INC | AIP | 04302A104 | $7.3M | 2.50% | 151,010 | SH |
| 14 | PAR TECHNOLOGY CORP | PAR | 698884103 | $6.5M | 2.21% | 371,605 | SH |
| 15 | AMBARELLA INC | AMBA | G037AX101 | $6.4M | 2.20% | 75,075 | SH |
| 16 | SLB LIMITED | SLB | 806857108 | $6.3M | 2.14% | 135,089 | SH |
| 17 | COGNYTE SOFTWARE LTD | CGNT | M25133105 | $6.1M | 2.09% | 697,500 | SH |
| 18 | KINDER MORGAN INC DEL | KMI | 49456B101 | $6.0M | 2.06% | 189,170 | SH |
| 19 | COGNYTE SOFTWARE LTD | CGNT | M25133105 | $5.8M | 2.00% | 666,200 | SH |
| 20 | RANPAK HOLDINGS CORP | PACK | 75321W103 | $5.6M | 1.90% | 431,100 | SH |
| 21 | AMBARELLA INC | AMBA | G037AX101 | $5.3M | 1.81% | 61,880 | SH |
| 22 | RANPAK HOLDINGS CORP | PACK | 75321W103 | $4.8M | 1.64% | 988,575 | SH |
| 23 | EMERSON ELEC CO | EMR | 291011104 | $4.7M | 1.61% | 32,960 | SH |
| 24 | RIMINI STR INC DEL | RMNI | 76674Q107 | $4.2M | 1.43% | 985,000 | SH |
| 25 | SLB LIMITED | SLB | 806857108 | $4.2M | 1.43% | 90,000 | SH |
| 26 | RIMINI STR INC DEL | RMNI | 76674Q107 | $3.8M | 1.29% | 886,500 | SH |
| 27 | RIDGEPOST CAP INC | RPC | 69376K106 | $3.8M | 1.28% | 476,800 | SH |
| 28 | FLUOR CORP | FLR | 343412102 | $3.7M | 1.27% | 70,985 | SH |
| 29 | APOLLO GLOBAL MGMT INC | APO | 03769M106 | $3.6M | 1.23% | 30,430 | SH |
| 30 | MICROSOFT CORP | MSFT | 594918104 | $3.6M | 1.22% | 9,590 | SH |
| 31 | DEERE & CO | DE | 244199105 | $3.6M | 1.22% | 5,615 | SH |
| 32 | JOHNSON & JOHNSON | JNJ | 478160104 | $3.4M | 1.17% | 13,470 | SH |
| 33 | RTX CORPORATION | RTX | 75513E101 | $3.3M | 1.12% | 17,275 | SH |
| 34 | KKR & CO INC | KKR | 48251W104 | $3.1M | 1.05% | 33,610 | SH |
| 35 | RIDGEPOST CAP INC | RPC | 69376K106 | $3.1M | 1.04% | 388,805 | SH |
| 36 | QNITY ELECTRONICS INC | Q | 74743L100 | $3.0M | 1.03% | 18,540 | SH |
| 37 | WALMART INC | WMT | 931142103 | $2.6M | 0.90% | 23,385 | SH |
| 38 | FLUOR CORP | FLR | 343412102 | $2.4M | 0.82% | 46,000 | SH |
| 39 | STARBUCKS CORP | SBUX | 855244109 | $2.2M | 0.74% | 21,330 | SH |
| 40 | CRYOPORT INC | CYRX | 229050307 | $2.0M | 0.70% | 130,000 | SH |
| 41 | FLOTEK INDUSTRIES INC | FTK | 343389409 | $2.0M | 0.68% | 85,000 | SH |
| 42 | PRIMO BRANDS CORPORATION | PRMB | 741623102 | $1.9M | 0.65% | 78,300 | SH |
| 43 | WASTE MGMT INC DEL | WM | 94106L109 | $1.8M | 0.61% | 8,050 | SH |
| 44 | ENTERPRISE PRODS PARTNERS L | EPD | 293792107 | $1.7M | 0.58% | 46,050 | SH |
| 45 | TIGO ENERGY INC | TYGO | 88675P103 | $1.6M | 0.53% | 670,000 | SH |
| 46 | WILLIAMS COS INC | WMB | 969457100 | $1.5M | 0.53% | 20,760 | SH |
| 47 | CONSTELLATION ENERGY CORP | CEG | 21037T109 | $1.5M | 0.52% | 6,076 | SH |
| 48 | KORNIT DIGITAL LTD | KRNT | M6372Q113 | $1.5M | 0.50% | 90,000 | SH |
| 49 | PFIZER INC | PFE | 717081103 | $1.4M | 0.49% | 60,145 | SH |
| 50 | NEOGEN CORP | NEOG | 640491106 | $1.3M | 0.46% | 150,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $293.0M | 83 | 0000919574-26-005254 |
| 2026-03-31 | 2026-05-15 | $231.3M | 84 | 0000919574-26-003552 |
| 2025-12-31 | 2026-02-17 | $258.7M | 85 | 0000919574-26-001176 |
| 2025-12-31 | 2026-02-13 | $241.3M | 79 | 0000919574-26-000944 |
16TH FLOOR
NEW YORK, NY 10022