Quick Takeaways
- Starboard Value LP filed SCHEDULE 13D/A for ALGONQUIN POWER & UTILITIES CORP. Common Shares, no par value (AQN).
- Disclosed ownership: 7.4%.
- Date of event: 30 Mar 2026.
Starboard Value LP - 30 Mar 2026 SCHEDULE 13D/A Report for ALGONQUIN POWER & UTILITIES CORP. Common Shares, no par value (AQN)
- Filing Manager
- Starboard Value LP
- Reporting Manager
- Starboard Value LP
- Symbol
- AQN
- Shares outstanding
- 773,181,284 shares
- Disclosed Ownership
- 57,215,415 shares
- Ownership
- 7.4%
- Form type
- SCHEDULE 13D/A
- Filing time
- 01 Apr 2026, 21:45:50 UTC
- Date of event
- 30 Mar 2026
- Previous filing
- 14 Mar 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Starboard Value LP disclosed 7.4% ownership in ALGONQUIN POWER & UTILITIES CORP. Common Shares, no par value (AQN) on 30 Mar 2026."
What Changed
- Previous schedule filing date: 14 Mar 2025.
- Current filing was accepted on 01 Apr 2026, 21:45.
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
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (19)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Starboard Value LP | 7.4% | 57,215,415 | 57,215,415 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value GP LLC, its general partner | 0001517137 |
| Starboard Value and Opportunity Master Fund III LP | 3.8% | 29,048,104 | 29,048,104 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value A LP, its general partner | |
| Starboard Value and Opportunity S LLC | 0.5% | 3,429,144 | 3,429,144 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value LP, its manager | 0001519812 |
| Starboard Value and Opportunity C LP | 0% | 0 | 0 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value R LP, its general partner | 0001571704 |
| Starboard X Master Fund II LP | 1.1% | 8,424,596 | 8,424,596 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value R LP, its general partner | |
| Starboard Value R LP | 1.1% | 8,424,596 | 8,424,596 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value R GP LLC, its general partner | 0001575972 |
| Starboard Value and Opportunity Master Fund L LP | 0.2% | 1,493,906 | 1,493,906 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value L LP, its general partner | 0001767736 |
| Starboard Value L LP | 0.2% | 1,493,906 | 1,493,906 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value R GP LLC, its general partner | 0001767773 |
| Starboard Value R GP LLC | 1.3% | 9,918,502 | 9,918,502 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory | 0001575979 |
| Starboard G Fund, L.P. | 1.2% | 9,172,365 | 9,172,365 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value G GP, LLC, its general partner | |
| Starboard Value G GP, LLC | 1.2% | 9,172,365 | 9,172,365 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value A LP, its general partner | |
| Starboard Value A LP | 5% | 38,220,469 | 38,220,469 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Value A GP LLC, its general partner | 0001575998 |
| Starboard Value A GP LLC | 5% | 38,220,469 | 38,220,469 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory | 0001575974 |
| Starboard Value GP LLC | 7.4% | 57,215,415 | 57,215,415 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Principal Co LP, its member | 0001517138 |
| Starboard Principal Co LP | 7.4% | 57,215,415 | 57,215,415 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory for Starboard Principal Co GP LLC, its general partner | 0001517139 |
| Starboard Principal Co GP LLC | 7.4% | 57,215,415 | 57,215,415 | 0 | /s/ Lindsey Cara | Lindsey Cara, Authorized Signatory | 0001517140 |
| Smith Jeffrey C | 7.4% | 57,215,415 | 0 | 57,215,415 | /s/ Lindsey Cara | Lindsey Cara, Attorney-in-Fact for Jeffrey C. Smith | 0001362697 |
| Feld Peter A | 7.4% | 57,215,415 | 0 | 57,215,415 | /s/ Lindsey Cara | Lindsey Cara, attorney-in-fact for Peter A. Feld | 0001410600 |
| Molinelli Gavin | 0% | 25,995 | 25,995 | 0 | /s/ Lindsey Cara | Lindsey Cara, attorney-in-fact for Gavin T. Molinelli | 0001460496 |