SEC 13F Intelligence

Managers / Q2 2025 · view latest →

TYBOURNE CAPITAL MANAGEMENT (HK) LTD

CIK 0001553936 · SUITES 818-822, 8/F, BANK OF AMERICA, TOWER, 12 HARCOURT ROAD,, HONG KONG, K3, XXXXX · 852-3983-6800

Reported Value
$35M
Q2 2025
Positions
6
Filings on Record
29
2019–present window
Filed
Aug 1, 2025
original filing

Summary

Tybourne Capital Management (Hk) Ltd reported $35M in U.S.-listed holdings across 6 positions for Q2 2025.

The portfolio is heavily concentrated: FBRX alone accounts for 29.4% of reported value.

Compared with Q1 2025, the fund opened 2 new positions and exited 1.

Portfolio Metrics

Turnover
+24.7%
vs prior filed quarter
Largest Position
+29.4%
Forte Biosciences Inc Fbrx US
New / Exited
2 / 1
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $2.2BQ4 ’18Q1 ’19: $2.6BQ2 ’19: $2.8BQ3 ’19: $2.3BQ4 ’19: $2.6BQ4 ’19Q1 ’20: $2.7BQ2 ’20: $3.3BQ3 ’20: $4.1BQ4 ’20: $4.8BQ4 ’20Q1 ’21: $4.6BQ2 ’21: $4.7BQ3 ’21: $4.0BQ4 ’21: $3.4BQ4 ’21Q1 ’22: $1.7BQ2 ’22: $1.4BQ3 ’22: $1.0BQ4 ’22: $1.0BQ4 ’22Q1 ’23: $993MQ2 ’23: $925MQ3 ’23: $716MQ4 ’23: $671MQ4 ’23Q1 ’24: $585MQ2 ’24: $492MQ3 ’24: $357MQ4 ’24: $398MQ4 ’24Q1 ’25: $24MQ2 ’25: $35MQ3 ’25: $31Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 80.0%ADR: 20.0%
  • Common Stock · 80.0% · $28M
  • ADR · 20.0% · $7M

Quarter-over-Quarter Changes full breakdown →

vs Q1 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
ALMSALUMIS INC (ALMS US)NEW+1.40M1.40M+$4M$4M
MBUUMALIBU BOATS INC (MBUU US)NEW+66.7K66.7K+$2M$2M
ACELYRIN INC (SLRN US)SOLD OUT−2.91M0−$7M$0
BCYCBICYCLE THERAPEUTICS LTD-ADR (BCYC US)ADDED+417.4K993.7K+$2M$7M
ZNTLZENTALIS PHARMACEUTICALS INC (ZNTL US)ADDED+516.7K1.48M+$185,893$2M
FBRXFORTE BIOSCIENCES INC (FBRX US)ADDED+166.7K786.6K+$5M$10M
TSHATAYSHA GENE THERAPIES INC (TSHA US)ADDED+395.0K4.09M+$4M$9M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q2 2025

6 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1FBRXFORTE BIOSCIENCES INC (FBRX US)history →COM NEW29.45%$10M786.6K
2TSHATAYSHA GENE THERAPIES INC (TSHA US)history →COM SHS27.39%$9M4.09M
3BCYCBICYCLE THERAPEUTICS LTD-ADR (BCYC US)history →SPONSORED ADS20.00%$7M993.7K
4ALMSALUMIS INC (ALMS US)history →COM12.15%$4M1.40M
5MBUUMALIBU BOATS INC (MBUU US)history →COM CL A6.05%$2M66.7K
6ZNTLZENTALIS PHARMACEUTICALS INC (ZNTL US)history →COM4.96%$2M1.48M

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q3 2025$31M4Nov 6, 202513F-HRchanges · EDGAR ↗
Q2 2025$35M6Aug 1, 202513F-HRchanges · EDGAR ↗
Q1 2025$24M5May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$398M37Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$357M34Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$492M40Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$585M41May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$671M39Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$716M41Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$925M49Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$993M49May 15, 202313F-HRchanges · EDGAR ↗
Q4 2022$1.0B27Feb 14, 202313F-HRchanges · EDGAR ↗
Q3 2022$1.0B26Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$1.4B27Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$1.7B30May 4, 202213F-HRchanges · EDGAR ↗
Q4 2021$3.4B26Feb 25, 2022RESTATEMENTchanges · EDGAR ↗
Q3 2021$4.0B24Oct 27, 202113F-HRchanges · EDGAR ↗
Q2 2021$4.7B29Jul 22, 202113F-HRchanges · EDGAR ↗
Q1 2021$4.6B32Apr 13, 202113F-HRchanges · EDGAR ↗
Q4 2020$4.8B31Feb 11, 202113F-HRchanges · EDGAR ↗
Q3 2020$4.1B29Nov 9, 202013F-HRchanges · EDGAR ↗
Q2 2020$3.3B21Aug 13, 202013F-HRchanges · EDGAR ↗
Q1 2020$2.7B21May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$2.6B13Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$2.3B12Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$2.8B13Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$2.6B11May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$2.2B9Feb 14, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.