Vault-13

Arvin Capital Management LP

AUSTIN, TX · CIK 1961738 · 13F filing filed 2026-08-13

SEC-registered investment adviser since 2023 · limited partnership

As an employer

$534.0m reported value +24.8% vs Q1 2026
32positions
53.5%in top 10
20 new 5 added 6 reduced 11 sold out vs Q1 2026

Options: 13 call positions ($157.1m notional), 6 put positions ($75.0m notional) – listed below, not included above.

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#SecurityTickerShares Value% of portfolioChangeShares change
1 TRANSALTA CORP COM TAC TAC 3,742,183 $51.8m9.69% 9.69% ReducedShares held: Q3 2025 3.1m, Q4 2025 3.8m, Q1 2026 4.5m, Q2 2026 3.7m -746.1k -746,052 -16.6%
2 VISTRA CORP COM VST VST 203,896 $32.3m6.06% 6.06% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 203.9k
3 GXO LOGISTICS INCORPORATED COMMON STOCK GXO GXO 598,125 $30.3m5.68% 5.68% AddedShares held: Q3 2025 440.8k, Q4 2025 507.2k, Q1 2026 525.4k, Q2 2026 598.1k +72.7k +72,706 13.8%
4 ROCKET COS INC COM CL A RKT RKT 1,886,480 $29.7m5.56% 5.56% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 1.9m
5 THERMO FISHER SCIENTIFIC INC COM TMO TMO 57,017 $28.6m5.35% 5.35% ReducedShares held: Q3 2025 82.5k, Q4 2025 67.8k, Q1 2026 111.7k, Q2 2026 57.0k -54.7k -54,680 -49.0%
6 UNION PAC CORP COM UNP UNP 98,499 $26.8m5.02% 5.02% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 98.5k
7 AKAMAI TECHNOLOGIES INC COM AKAM AKAM 195,698 $23.1m4.33% 4.33% AddedShares held: Q3 2025 0, Q4 2025 0, Q1 2026 135.2k, Q2 2026 195.7k +60.5k +60,546 44.8%
8 TTM TECHNOLOGIES INC COM TTMI TTMI 117,631 $22.0m4.12% 4.12% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 117.6k
9 WATERS CORP COM WAT WAT 55,975 $21.0m3.93% 3.93% AddedShares held: Q3 2025 0, Q4 2025 0, Q1 2026 10.2k, Q2 2026 56.0k +45.8k +45,801 450.2%
10 UNITY SOFTWARE INC COM U U 698,280 $20.0m3.74% 3.74% AddedShares held: Q3 2025 234.7k, Q4 2025 108.6k, Q1 2026 220.4k, Q2 2026 698.3k +477.9k +477,898 216.8%
11 CARPENTER TECHNOLOGY CORP COM CRS CRS 31,801 $19.6m3.67% 3.67% ReducedShares held: Q3 2025 101.7k, Q4 2025 68.9k, Q1 2026 46.3k, Q2 2026 31.8k -14.5k -14,499 -31.3%
12 KODIAK GAS SVCS INC COM KGS KGS 246,609 $18.5m3.47% 3.47% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 246.6k
13 UNITED AIRLS HLDGS INC COM UAL UAL 135,758 $18.5m3.46% 3.46% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 135.8k
14 HUB GROUP INC CL A HUBG HUBG 402,416 $17.6m3.30% 3.30% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 402.4k
15 RB GLOBAL INC COM RBA RBA 147,635 $17.2m3.22% 3.22% ReducedShares held: Q3 2025 95.1k, Q4 2025 156.0k, Q1 2026 300.5k, Q2 2026 147.6k -152.9k -152,865 -50.9%
16 QNITY ELECTRONICS INC COMMON STOCK Q Q 101,603 $16.6m3.11% 3.11% ReducedShares held: Q3 2025 0, Q4 2025 115.4k, Q1 2026 131.3k, Q2 2026 101.6k -29.7k -29,700 -22.6%
17 WAYFAIR INC CL A W W 159,515 $14.7m2.76% 2.76% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 159.5k
18 TRANSOCEAN LTD REGISTERED SHS RIG RIG 2,982,831 $14.6m2.73% 2.73% AddedShares held: Q3 2025 0, Q4 2025 0, Q1 2026 182.0k, Q2 2026 3.0m +2.8m +2,800,831 1538.9%
19 REGAL REXNORD CORPORATION COM RRX RRX 59,447 $14.2m2.65% 2.65% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 59.4k
20 SAIA INC COM SAIA SAIA 28,522 $12.0m2.25% 2.25% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 28.5k
21 TOWER SEMICONDUCTOR LTD SHS NEW TSEM TSEM 44,135 $11.5m2.15% 2.15% UnchangedShares held: Q3 2025 171.0k, Q4 2025 44.1k, Q1 2026 44.1k, Q2 2026 44.1k
22 ICON PLC SHS ICLR ICLR 64,820 $11.3m2.11% 2.11% NewShares held: Q3 2025 71.7k, Q4 2025 50.2k, Q1 2026 0, Q2 2026 64.8k
23 KNIGHT-SWIFT TRANSN HLDGS IN CL A KNX KNX 117,807 $9.2m1.72% 1.72% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 117.8k
24 AMENTUM HOLDINGS INC COM AMTM AMTM 416,705 $8.6m1.61% 1.61% ReducedShares held: Q3 2025 1.6m, Q4 2025 1.6m, Q1 2026 2.1m, Q2 2026 416.7k -1.7m -1,654,495 -79.9%
25 WOLFSPEED INC COMMON STOCK WOLF WOLF 168,958 $8.2m1.53% 1.53% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 169.0k
26 STMICROELECTRONICS N V NY REGISTRY STM STM 106,692 $8.0m1.50% 1.50% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 106.7k
27 REDDIT INC CL A RDDT RDDT 42,549 $7.4m1.38% 1.38% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 42.5k
28 GDS HLDGS LTD SPONSORED ADS GDS GDS 233,952 $7.0m1.32% 1.32% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 234.0k
29 SEAGATE TECHNOLOGY HLDNGS PL ORD SHS STX STX 6,928 $6.7m1.25% 1.25% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 6.9k
30 TALEN ENERGY CORP COM TLN TLN 11,099 $4.3m0.80% 0.80% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 11.1k
31 DUCOMMUN INC DEL COM DCO DCO 13,469 $2.5m0.47% 0.47% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 13.5k
32 ALIBABA GROUP HLDG LTD SPONSORED ADS BABA BABA 3,328 $319.4k0.06% 0.06% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 3.3k

Sold out since Q1 2026

SecurityTickerShares held beforeValue then
DANAHER CORPORATION DHR DHR 185,510 $35.2m185.5k shares
OPTION CARE HEALTH INC OPCH OPCH 699,458 $18.8m699.5k shares
CONSTELLATION ENERGY CORP CEG CEG 52,215 $14.6m52.2k shares
AMAZON COM INC AMZN AMZN 57,629 $12.0m57.6k shares
FAIR ISAAC CORP FICO FICO 11,217 $12.0m11.2k shares
ACV AUCTIONS INC 2,659,898 $11.3m2.7m shares
BIO-TECHNE CORP TECH TECH 204,304 $10.7m204.3k shares
AIR LEASE CORP AL AL 151,059 $9.8m151.1k shares
META PLATFORMS INC META META 11,200 $6.4m11.2k shares
MICROSOFT CORP MSFT MSFT 12,300 $4.6m12.3k shares
SOLSTICE ADVANCED MATLS INC SOLS SOLS 40,601 $3.1m40.6k shares

Options (notional value)

UnderlyingTickerTypeShares controlled NotionalChange
MICROSOFT CORP MSFT · Call MSFTCall 104,000 $38.8m104.0k shares Reduced
INVESCO QQQ TR QQQ · Put QQQPut 40,000 $29.5m40.0k shares Added
UNION PAC CORP UNP · Call UNPCall 88,000 $23.9m88.0k shares Added
EQUIFAX INC EFX · Call EFXCall 120,000 $19.0m120.0k shares New
VISTRA CORP VST · Call VSTCall 120,000 $19.0m120.0k shares New
ISHARES TR MTUM · Put MTUMPut 50,000 $17.1m50.0k shares New
WAYFAIR INC W · Call WCall 150,000 $13.9m150.0k shares New
ICON PLC ICLR · Call ICLRCall 70,000 $12.2m70.0k shares New
PDD HOLDINGS INC PDD · Put PDDPut 135,200 $10.3m135.2k shares Unchanged
SEA LTD SE · Call SECall 100,000 $9.6m100.0k shares New
AMENTUM HOLDINGS INC AMTM · Call AMTMCall 450,000 $9.3m450.0k shares Reduced
VANECK ETF TRUST SMH · Put SMHPut 12,000 $7.9m12.0k shares Reduced
ISHARES TR IWM · Put IWMPut 24,000 $7.2m24.0k shares New
TRANSALTA CORP TAC · Call TACCall 330,000 $4.6m330.0k shares New
NETFLIX INC NFLX · Put NFLXPut 41,600 $3.0m41.6k shares Unchanged
ALIBABA GROUP HLDG LTD BABA · Call BABACall 30,000 $2.9m30.0k shares New
GDS HLDGS LTD GDS · Call GDSCall 65,000 $2.0m65.0k shares New
AKAMAI TECHNOLOGIES INC AKAM · Call AKAMCall 14,700 $1.7m14.7k shares Reduced
NETFLIX INC NFLX · Call NFLXCall 3,600 $257.0k3.6k shares Unchanged