Oakum Bay Capital LLC — 13F Holdings & Portfolio
CIK 1571727 · latest 13F-HR filed 2026-05-15
Oakum Bay Capital LLC manages $186.6M in 13F-reported U.S. long-equity assets across 88 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are MU (20.62%), TSLA (11.65%), ZG (8.35%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 28 new positions and exited 18; 24 existing positions rose in reported value and 34 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 2026-05-15
vs 2025-12-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q1 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
Q4 25 → Q1 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
2 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 = 76.5%Cumulative share of the portfolio held in the largest N positions.
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| TRICA, MICHAEL, HOWARD Control | CHIEF EXECUTIVE OFFICER / CHIEF COMPLIANCE OFFICER | 75% or more | Individual |
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)
- RAYONIER INC$10.4M +299.8%
- LGI HOMES INC$2.3M +18.8%
- COGENT COMMUNICATIONS HLDGS INC$1.3M +11.0%
- COSTAR GROUP INC$1.3M +346.8%
- WEYERHAEUSER CO$1.1M +41.8%
Top Trims
- KE HOLDINGS INC-$17.3M -97.7%
- MICRON TECHNOLOGY INC-$4.9M -11.4%
- TESLA INC-$4.6M -17.3%
- TRANSUNION-$3.2M -88.6%
- EQUIFAX INC-$1.9M -66.9%
New Positions
- GLOBALFOUNDRIES INC$3.8M
- AXON ENTERPRISE INC$3.7M
- VEECO INSTRS INC DEL$1.7M
- WOLFSPEED INC$1.6M
- SEA LTD$1.4M
Exited Positions
- FMC CORP$436.9K
- MISTER CAR WASH INC$321.9K
- STRIDE INC$318.2K
- DENTSPLY SIRONA INC$134.0K
- NAVITAS SEMICONDUCTOR CORP$107.1K
Oakum Bay Capital LLC Holdings (2026-03-31)
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 | MICRON TECHNOLOGY INC | MU | 595112103 | $38.5M | 20.62% | 113,878 | SH |
| 2 | TESLA INC | TSLA | 88160R101 | $21.7M | 11.65% | 58,488 | SH |
| 3 | ZILLOW GROUP INC | ZG | 98954M101 | $15.6M | 8.35% | 376,532 | SH |
| 4 | LGI HOMES INC | LGIH | 50187T106 | $14.4M | 7.74% | 365,410 | SH |
| 5 | RAYONIER INC | RYN | 754907103 | $13.8M | 7.42% | 671,559 | SH |
| 6 | COGENT COMMUNICATIONS HLDGS INC | CCOI | 19239V302 | $13.0M | 6.97% | 690,374 | SH |
| 7 | VAIL RESORTS INC | MTN | 91879Q109 | $6.9M | 3.72% | 54,151 | SH |
| 8 | FORESTAR GROUP INC | FOR | 346232101 | $6.4M | 3.43% | 261,527 | SH |
| 9 | CENTURY COMMUNITIES INC | CCS | 156504300 | $6.1M | 3.29% | 107,064 | SH |
| 10 | BEAZER HOMES USA INC | BZH | 07556Q881 | $6.0M | 3.20% | 310,769 | SH |
| 11 | WEYERHAEUSER CO | WY | 962166104 | $3.8M | 2.06% | 157,574 | SH |
| 12 | GLOBALFOUNDRIES INC | GFS | G39387108 | $3.8M | 2.05% | 85,878 | SH |
| 13 | AXON ENTERPRISE INC | AXON | 05464C101 | $3.7M | 1.98% | 8,708 | SH |
| 14 | TAIWAN SEMICONDUCTOR MFG LTD | TSM | 874039100 | $2.2M | 1.19% | 6,550 | SH |
| 15 | VEECO INSTRS INC DEL | VECO | 922417100 | $1.7M | 0.90% | 49,753 | SH |
| 16 | COSTAR GROUP INC | CSGP | 22160N109 | $1.7M | 0.89% | 40,965 | SH |
| 17 | WOLFSPEED INC | WOLF | 97785W106 | $1.6M | 0.88% | 100,484 | SH |
| 18 | ATKORE INC | ATKR | 047649108 | $1.4M | 0.76% | 23,917 | SH |
| 19 | SEA LTD | SE | 81141R100 | $1.4M | 0.75% | 16,800 | SH |
| 20 | ACM RESEARCH INC | ACMR | 00108J109 | $1.4M | 0.73% | 34,398 | SH |
| 21 | INVITATION HOMES INC | INVH | 46187W107 | $1.1M | 0.60% | 45,200 | SH |
| 22 | SIX FLAGS ENTERTAINMENT CORP | FUN | 83001C108 | $1.1M | 0.59% | 61,922 | SH |
| 23 | KANZHUN LIMITED | BZ | 48553T106 | $1.1M | 0.58% | 80,459 | SH |
| 24 | AIRBNB INC | ABNB | 009066101 | $1.0M | 0.55% | 8,171 | SH |
| 25 | EQUIFAX INC | EFX | 294429105 | $925.4K | 0.50% | 5,139 | SH |
| 26 | RIO TINTO PLC | RIO | 767204100 | $918.9K | 0.49% | 9,850 | SH |
| 27 | CHIPOTLE MEXICAN GRILL INC | CMG | 169656105 | $889.9K | 0.48% | 27,800 | SH |
| 28 | FREEPORT-MCMORAN INC | FCX | 35671D857 | $805.3K | 0.43% | 13,701 | SH |
| 29 | LIMONEIRA CO | LMNR | 532746104 | $757.0K | 0.41% | 56,405 | SH |
| 30 | FIRST SOLAR INC | FSLR | 336433107 | $729.9K | 0.39% | 3,700 | SH |
| 31 | GLADSTONE LAND CORP | LAND | 376549101 | $721.1K | 0.39% | 70,695 | SH |
| 32 | MADISON SQUARE GARDEN SPORTS CORP | MSGS | 55825T103 | $708.0K | 0.38% | 2,203 | SH |
| 33 | ENPHASE ENERGY INC | ENPH | 29355A107 | $703.7K | 0.38% | 18,611 | SH |
| 34 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $579.8K | 0.31% | 2,850 | SH |
| 35 | AMAZON COM INC | AMZN | 023135106 | $563.8K | 0.30% | 2,707 | SH |
| 36 | GITLAB INC | GTLB | 37637K108 | $545.6K | 0.29% | 25,214 | SH |
| 37 | TEJON RANCH CO | TRC | 879080109 | $460.7K | 0.25% | 24,455 | SH |
| 38 | ALEXANDRIA REAL ESTATE EQ INC | ARE | 015271109 | $433.8K | 0.23% | 9,345 | SH |
| 39 | XPLR INFRASTRUCTURE LP | XIFR | 65341B106 | $424.6K | 0.23% | 39,984 | SH |
| 40 | MERITAGE HOMES CORP | MTH | 59001A102 | $420.5K | 0.23% | 6,800 | SH |
| 41 | TRANSUNION | TRU | 89400J107 | $411.5K | 0.22% | 5,948 | SH |
| 42 | KE HOLDINGS INC | BEKE | 482497104 | $409.7K | 0.22% | 27,367 | SH |
| 43 | CLEVELAND-CLIFFS INC | CLF | 185899101 | $390.5K | 0.21% | 46,214 | SH |
| 44 | UWM HOLDINGS CORPORATION | UWMC | 91823B109 | $347.9K | 0.19% | 96,100 | SH |
| 45 | COREWEAVE INC Put | CRWV | 21873S108 | $309.9K | 0.17% | 4,000 | SH |
| 46 | PDD HOLDINGS INC | PDD | 722304102 | $296.3K | 0.16% | 2,900 | SH |
| 47 | GRAPHIC PACKAGING HLDG CO | GPK | 388689101 | $278.3K | 0.15% | 28,000 | SH |
| 48 | SPDR GOLD TRUST | GLD | 78463V107 | $272.8K | 0.15% | 634 | SH |
| 49 | JD.COM INC | JD | 47215P106 | $272.0K | 0.15% | 9,200 | SH |
| 50 | HOVNANIAN ENTERPRISES INC | HOV | 442487401 | $270.7K | 0.15% | 2,441 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $186.6M | 88 | 0001571727-26-000007 |
| 2025-12-31 | 2026-02-13 | $204.5M | 78 | 0001571727-26-000005 |