Vault-13

Selkirk Management LLC

Chatham, NJ · CIK 1565432 · 13F filing filed 2026-08-14

SEC-registered investment adviser since 2014 · limited liability company

As an employer

Where they work

people there (dot area)number not reportedmain officeHover or tap a dot. Australian and UK companies are placed at their business or registered address, with their staff across the whole country.

Offices

From Form ADV: the main office and the other offices where it does advisory work (at most the 25 largest), with the people doing investment work at each. “About” is worked out: the firm's investment staff less its other offices. Each city links to the other managers there.

CityCountryPeople
Chatham, NJ (main office)United States United Statesabout 1
Greenwich, CTUnited States United States1
Portland, MEUnited States United States1

Map: places from GeoNames (CC BY 4.0), outlines from Natural Earth.

$288.1m reported value -2.1% vs Q1 2026
13positions
98.0%in top 10
4 new 1 added 7 reduced 2 sold out vs Q1 2026

Options: 0 call positions (— notional), 1 put positions ($32.9m notional) – listed below, not included above.

This report includes the holdings of 1 other manager that shares the investment decisions:

Shares in two reports are counted once in each security's totals.

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 CARVANA CO CL A CVNA CVNA 1,801,100 $118.5m41.15% 41.15% ReducedShares held: Q3 2025 1.8m, Q4 2025 1.8m, Q1 2026 1.8m, Q2 2026 1.8m -25.0k -25,000 -1.4%
2 AMAZON COM INC COM AMZN AMZN 234,500 $55.9m19.40% 19.40% ReducedShares held: Q3 2025 253.0k, Q4 2025 253.0k, Q1 2026 253.0k, Q2 2026 234.5k -18.5k -18,500 -7.3%
3 ALPHABET INC CAP STK CL A GOOGL GOOGL 81,275 $29.0m10.08% 10.08% ReducedShares held: Q3 2025 85.3k, Q4 2025 85.3k, Q1 2026 85.3k, Q2 2026 81.3k -4.0k -4,000 -4.7%
4 META PLATFORMS INC CL A META META 44,750 $25.2m8.75% 8.75% UnchangedShares held: Q3 2025 44.8k, Q4 2025 44.8k, Q1 2026 44.8k, Q2 2026 44.8k
5 APPLOVIN CORP COM CL A APP APP 43,100 $22.2m7.71% 7.71% ReducedShares held: Q3 2025 30.1k, Q4 2025 35.7k, Q1 2026 48.7k, Q2 2026 43.1k -5.6k -5,600 -11.5%
6 NVIDIA CORPORATION COM NVDA NVDA 57,000 $11.4m3.96% 3.96% AddedShares held: Q3 2025 52.0k, Q4 2025 52.0k, Q1 2026 52.0k, Q2 2026 57.0k +5.0k +5,000 9.6%
7 MICRON TECHNOLOGY INC COM MU MU 5,100 $5.9m2.04% 2.04% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 5.1k
8 FLUTTER ENTMT PLC SHS FLUT FLUT 48,276 $4.9m1.71% 1.71% ReducedShares held: Q3 2025 85.8k, Q4 2025 85.8k, Q1 2026 85.8k, Q2 2026 48.3k -37.5k -37,500 -43.7%
9 NETFLIX INC COM NFLX NFLX 67,300 $4.8m1.67% 1.67% ReducedShares held: Q3 2025 92.3k, Q4 2025 92.3k, Q1 2026 92.3k, Q2 2026 67.3k -25.0k -25,000 -27.1%
10 SANDISK CORP COM SNDK SNDK 1,950 $4.4m1.54% 1.54% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 1.9k
11 CREDO TECHNOLOGY GROUP HOLDI ORDINARY SHARES CRDO CRDO 12,000 $3.3m1.13% 1.13% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 12.0k
12 ROUNDHILL ETF TRUST MEMORY ETF DRAM DRAM 22,000 $1.6m0.56% 0.56% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 22.0k
13 ACV AUCTIONS INC COM CL A COM CL A 112,000 $805.3k0.28% 0.28% ReducedShares held: Q3 2025 570.0k, Q4 2025 887.0k, Q1 2026 887.0k, Q2 2026 112.0k -775.0k -775,000 -87.4%

Sold out since Q1 2026

SecurityTickerShares held beforeValue then
ZILLOW GROUP INC ZG ZG 365,800 $15.1m365.8k shares
GDS HLDGS LTD GDS GDS 287,000 $11.6m287.0k shares

Options (notional value)

UnderlyingTickerTypeShares controlled NotionalChange
CARVANA CO CVNA · Put CVNAPut 500,000 $32.9m500.0k shares New