VIKING GLOBAL INVESTORS LP - 30 Sep 2025 SCHEDULE 13G/A Report for Trevi Therapeutics, Inc. Common Stock, $0.001 par value per share (TRVI)

Filing Manager
VIKING GLOBAL INVESTORS LP
Reporting Manager
VIKING GLOBAL INVESTORS LP
Security
Trevi Therapeutics, Inc. Common Stock, $0.001 par value per share
Symbol
TRVI
Shares outstanding
122,116,071 shares
Disclosed Ownership
5,128,875 shares
Ownership
4.2%
Form type
SCHEDULE 13G/A
Filing time
14 Nov 2025, 16:55:28 UTC
Date of event
30 Sep 2025
Previous filing
14 Aug 2025
SEC
View on sec.gov

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Quoteable Key Fact

"VIKING GLOBAL INVESTORS LP disclosed 4.2% ownership in Trevi Therapeutics, Inc. Common Stock, $0.001 par value per share (TRVI) on 30 Sep 2025."

Quick Takeaways

  • VIKING GLOBAL INVESTORS LP filed SCHEDULE 13G/A for Trevi Therapeutics, Inc. Common Stock, $0.001 par value per share (TRVI).
  • Disclosed ownership: 4.2%.
  • Date of event: 30 Sep 2025.

What Changed

  • Previous schedule filing date: 14 Aug 2025.
  • Current filing was accepted on 14 Nov 2025, 16:55.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (11)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
VIKING GLOBAL INVESTORS LP 4.2% 5,128,875 0 5,128,875 /s/ Scott M. Hendler Scott M. Hendler on behalf of VIKING GLOBAL INVESTORS LP (1)(2)(3)
Viking Global Opportunities Parent GP LLC 4.2% 5,128,875 0 5,128,875 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities Parent GP LLC (1)(2)(3)
Viking Global Opportunities GP LLC 2.8% 3,436,346 0 3,436,346 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities GP LLC (1)(2)(3)
Viking Global Opportunities Portfolio GP LLC 2.8% 3,436,346 0 3,436,346 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities Portfolio GP LLC (1)(2)(3)
Viking Global Opportunities Illiquid Investments Sub-Master LP 2.8% 3,436,346 0 3,436,346 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities Illiquid Investments Sub-Master LP (1)(2)(3)
Viking Global Opportunities Drawdown GP LLC 1.4% 1,692,529 0 1,692,529 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities Drawdown GP LLC (1)(2)(3)
Viking Global Opportunities Drawdown Portfolio GP LLC 1.4% 1,692,529 0 1,692,529 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities Drawdown Portfolio GP LLC (1)(2)(3)
Viking Global Opportunities Drawdown (Aggregator) LP 1.4% 1,692,529 0 1,692,529 /s/ Scott M. Hendler Scott M. Hendler on behalf of Viking Global Opportunities Drawdown (Aggregator) LP (1)(2)(3)
HALVORSEN OLE ANDREAS 4.2% 5,128,875 0 5,128,875 /s/ Scott M. Hendler Scott M. Hendler on behalf of O. Andreas Halvorsen (1)
Ott David C. 4.2% 5,128,875 0 5,128,875 /s/ Scott M. Hendler Scott M. Hendler on behalf of David C. Ott (2)
Shabet Rose Sharon 4.2% 5,128,875 0 5,128,875 /s/ Scott M. Hendler Scott M. Hendler on behalf of Rose S. Shabet (3)

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