Top Institutional Investors

PINNBROOK CAPITAL MANAGEMENT LP — 13F Holdings & Portfolio

CIK 1856103 · latest 13F-HR filed 2026-08-12

Backtest portfolio

PINNBROOK CAPITAL MANAGEMENT LP manages $938.1M in 13F-reported U.S. long-equity assets across 103 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are QQQ (11.77%), CSX (4.76%), AMD (4.05%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 71 new positions and exited 16; 14 existing positions rose in reported value and 2 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.

Loading holdings…
AUM
$938.1M

Long-equity book

Holdings
103

Distinct positions

Period
2026-06-30

Filed 2026-08-12

Q/Q Activity
+71 / −16 / ↑14 / ↓2

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
CSX7.4% · +1157%KGS4.9% · +124%JBL3.8% · +167%NTRA3.1% · newWAB3.1% · +760%PWR2.8% · newTKR2.7% · newATI2.7% · +1090%TXN2.5% · newARMK2.4% · newDTM2.4% · newSTX2.2% · +432%PFGC2.1% · newWDC2.0% · +46%MTZ1.9% · -25%DBA1.9% · newVIK1.7% · +533%KNX1.7% · newSTM1.6% · newGOOGL1.5% · newHWM1.5% · newSPHR1.5% · +20%NVT1.5% · +206%MATX1.5% · +409%FTI1.4% · +193%ROST1.4% · +66%ESE1.3% · newLLY1.3% · newSGI1.3% · newSNX1.2% · newVTR1.2% · newFLEX1.2% · newVLO1.2% · newCDW1.0% · newTWLO1.0% · newGFS1.0% · newWELL1.0% · newINIO0.9% · newMKSI0.9% · newDOCN0.9% · newH0.9% · newARW0.8% · newHUT0.8% · newCRL0.8% · newTREX0.8% · newDDOG0.8% · newTSM0.7% · newCOHR0.7% · newFTNT0.7% · newSNOW0.6% · newMRVL0.6% · newOKTA0.6% · newSNDK0.6% · newMAIR0.5% · newNOK0.5% · newUNH0.5% · newVSAT0.5% · newCARR0.5% · newBRKR0.5% · newCIEN0.5% · +187%

Box 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 value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated 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

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 35.6%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People
Assets Under Management
$1.07B
Discretionary
$1.07B
Employees
13
Accounts
4
Address
437 MADISON AVENUE
27TH FLOOR
NEW YORK, NY 10022
Phone
(646) 970-7410
Website
Name Title / Status Ownership Type
DWAN, THOMAS, SCOTT ControlCHIEF COMPLIANCE OFFICER, CHIEF FINANCIAL OFFICER, AND CHIEF OPERATING OFFICERLess than 5%Individual
KURZ, ZACHARY, MITCHELL ControlCHIEF INVESTMENT OFFICER AND LIMITED PARTNER75% or moreIndividual
KURZ, ZACHARY, MITCHELL ControlOWNER75% or moreIndividual
PINNBROOK CAPITAL MANAGEMENT GP LLC ControlGENERAL PARTNERLess than 5%Domestic Entity

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)

Show all 14 →

Top Trims

Show all 2 →

New Positions

Show all 71 →

Exited Positions

Show all 16 →

PINNBROOK CAPITAL MANAGEMENT LP 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 INVESCO QQQ TR Put QQQ 46090E103 $110.5M 11.77% 150,000 SH
2 CSX CORP CSX 126408103 $44.7M 4.76% 939,978 SH
3 ADVANCED MICRO DEVICES INC Call AMD 007903107 $38.0M 4.05% 65,400 SH
4 KODIAK GAS SVCS INC KGS 50012A108 $29.4M 3.14% 391,854 SH
5 TAIWAN SEMICONDUCTOR MANUFAC Call TSM 874039100 $26.7M 2.85% 56,000 SH
6 SANDISK CORP Call SNDK 80004C200 $26.1M 2.79% 11,500 SH
7 SEAGATE TECHNOLOGY HLDNGS PL Call STX G7997R103 $25.5M 2.72% 26,400 SH
8 JABIL INC JBL 466313103 $22.7M 2.42% 58,867 SH
9 MARATHON PETE CORP Call MPC 56585A102 $22.1M 2.35% 86,400 SH
10 NATERA INC NTRA 632307104 $18.8M 2.01% 69,300 SH
11 WABTEC WAB 929740108 $18.6M 1.99% 69,107 SH
12 QUANTA SVCS INC PWR 74762E102 $17.1M 1.82% 23,734 SH
13 MICRON TECHNOLOGY INC Call MU 595112103 $16.7M 1.78% 14,500 SH
14 TECHNIPFMC PLC Call FTI G87110105 $16.6M 1.77% 250,000 SH
15 TIMKEN CO TKR 887389104 $16.5M 1.76% 113,500 SH
16 ATI INC ATI 01741R102 $16.2M 1.72% 82,081 SH
17 TEXAS INSTRS INC TXN 882508104 $15.0M 1.60% 50,400 SH
18 ARAMARK ARMK 03852U106 $14.7M 1.56% 257,700 SH
19 DT MIDSTREAM INC DTM 23345M107 $14.2M 1.52% 97,009 SH
20 AMAZON COM INC Call AMZN 023135106 $13.9M 1.49% 58,500 SH
21 SEAGATE TECHNOLOGY HLDNGS PL STX G7997R103 $13.4M 1.42% 13,840 SH
22 PERFORMANCE FOOD GROUP CO PFGC 71377A103 $12.9M 1.37% 115,000 SH
23 WESTERN DIGITAL CORP WDC 958102105 $12.3M 1.31% 19,280 SH
24 MASTEC INC MTZ 576323109 $11.3M 1.21% 27,243 SH
25 INVESCO DB MULTI-SECTOR COMM DBA 46140H106 $11.2M 1.20% 421,600 SH
26 VIKING HOLDINGS LTD VIK G93A5A101 $10.0M 1.06% 95,300 SH
27 KNIGHT-SWIFT TRANSN HLDGS IN KNX 499049104 $9.9M 1.06% 127,400 SH
28 STMICROELECTRONICS N V STM 861012102 $9.8M 1.05% 131,347 SH
29 ALPHABET INC GOOGL 02079K305 $9.1M 0.97% 25,440 SH
30 HOWMET AEROSPACE INC HWM 443201108 $9.0M 0.95% 33,317 SH
31 HUT 8 CORP Call HUT 44812J104 $8.9M 0.95% 77,200 SH
32 SPHERE ENTERTAINMENT CO SPHR 55826T102 $8.9M 0.94% 51,208 SH
33 NVENT ELEC PLC NVT G6700G107 $8.8M 0.94% 52,110 SH
34 MATSON INC MATX 57686G105 $8.8M 0.94% 45,814 SH
35 CIPHER DIGITAL INC Call CIFR 17253J106 $8.6M 0.91% 350,000 SH
36 TECHNIPFMC PLC FTI G87110105 $8.6M 0.91% 129,105 SH
37 ROSS STORES INC ROST 778296103 $8.4M 0.90% 39,593 SH
38 SNOWFLAKE INC Call SNOW 833445109 $8.1M 0.87% 32,000 SH
39 ESCO TECHNOLOGIES INC ESE 296315104 $8.0M 0.86% 22,960 SH
40 ELI LILLY & CO LLY 532457108 $8.0M 0.85% 6,640 SH
41 SOMNIGROUP INTERNATIONAL INC SGI 88023U101 $8.0M 0.85% 101,429 SH
42 TD SYNNEX CORPORATION SNX 87162W100 $7.4M 0.79% 27,600 SH
43 VENTAS INC VTR 92276F100 $7.2M 0.77% 81,200 SH
44 NOKIA CORP Call NOK 654902204 $7.2M 0.77% 542,100 SH
45 FLEX LTD FLEX Y2573F102 $7.1M 0.75% 43,700 SH
46 VALERO ENERGY CORP VLO 91913Y100 $6.9M 0.74% 26,636 SH
47 CDW CORP CDW 12514G108 $6.2M 0.66% 44,300 SH
48 TWILIO INC TWLO 90138F102 $6.1M 0.65% 29,600 SH
49 GLOBALFOUNDRIES INC GFS G39387108 $5.9M 0.63% 71,600 SH
50 WELLTOWER INC WELL 95040Q104 $5.8M 0.62% 25,500 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-12 $938.1M 103 0001856103-26-000005
2026-03-31 2026-05-14 $383.9M 45 0001856103-26-000003
2025-12-31 2026-02-06 $715.0M 105 0001856103-26-000002
2025-09-30 2025-11-13 $903.9M 139 0001856103-25-000010
Filer Information
Address
437 MADISON AVENUE
27TH FLOOR
NEW YORK, NY 10022
Phone
(646) 970-7410
Filing Manager
PINNBROOK CAPITAL MANAGEMENT LP
NEW YORK, NY
Signatory
Thomas Dwan
CCO, COO, and CFO