Stantec Inc
STN- Exchange
- NYSE
- Industry
- Services-Engineering Services
- SEC CIK
- 0001131383
No open-market purchases or sales by Stantec Inc insiders were filed in the last 90 days; 292 institutions reported holding it in 13F filings for Q2 2026, worth $4.96B in total; no superinvestor holds it.
Holders of 5% or more of STN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Stantec Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G | 5.03%5.75M shares | +0.73 ppfrom 4.30% | Apr 29, 20252 filings | Jan 21, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
29 Schedule 13D and 13G filings on Stantec Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 3, 20265:00 PM ET | Mackenzie Financial Corp | 13G/A | 0.90%1.00M shares | −3.20 ppfrom 4.10%Below 5% | Sep 30, 2026 | SEC |
| Jan 21, 202612:30 PM ET | BlackRock, Inc. | 13G | 5.03%5.75M shares | +0.73 ppfrom 4.30% | Dec 31, 2025 | SEC |
| Nov 5, 20252:59 PM ET | Mackenzie Financial Corp | 13G/A | 4.10%4.68M shares | −1.30 ppfrom 5.40%Below 5% | Oct 31, 2025 | SEC |
| Aug 14, 20254:13 PM ET | Mackenzie Financial Corp | 13G/A | 5.40%6.17M shares | −0.70 ppfrom 6.10% | Jun 30, 2025 | SEC |
| Jul 31, 20254:56 PM ET | 1832 Asset Management L.P.and 3 others | 13G/A | 4.35%4.96M shares | −0.59 ppfrom 4.95%Below 5% | Jun 30, 2025 | SEC |
| May 13, 20258:35 PM ET | Mackenzie Financial Corp | 13G/A | 6.10%6.94M shares | −0.10 ppfrom 6.20% | Mar 31, 2025 | SEC |
| Apr 29, 20257:00 AM ET | BlackRock, Inc. | 13G/A | 4.30%4.87M shares | –Below 5% | Mar 31, 2025 | SEC |
| Apr 15, 20252:15 PM ET | 1832 Asset Management L.P.and 3 others | 13G | 4.95%5.64M shares | NewBelow 5% | Mar 31, 2025 | SEC |
| Feb 13, 20255:26 PM ET | Mackenzie Financial Corp | 13G/A | 6.20%7.12M shares | – | Dec 31, 2024 | SEC |
| Nov 13, 2024 | Mackenzie Financial Corp | 13G/AOld format | – | – | – | SEC |
| Nov 12, 20241:17 PM ET | Jarislowsky, Fraser Ltdand 3 others | 13G/A | 4.57%5.21M shares | –Below 5% | Sep 30, 2024 | SEC |
| Oct 10, 202411:25 AM ET | Bank of Nova Scotia | 13G/AOld format | – | – | – | SEC |
| Oct 10, 202411:24 AM ET | Bank of Nova Scotia | 13G/AOld format | – | – | – | SEC |
| Feb 13, 20242:50 PM ET | Bank of Nova Scotia | 13G/AOld format | – | – | – | SEC |
| Feb 13, 2024 | Mackenzie Financial Corp | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2024 | Jarislowsky, Fraser Ltd | 13GOld format | – | – | – | SEC |
| Feb 2, 20242:18 PM ET | BlackRock Inc. | 13GOld format | – | New | – | SEC |
| Dec 26, 202311:32 AM ET | Bank of Nova Scotia | 13GOld format | – | New | – | SEC |
| Nov 8, 2023 | Mackenzie Financial Corp | 13GOld format | – | – | – | SEC |
| Feb 13, 2023 | Jarislowsky, Fraser Ltd | 13GOld format | – | – | – | SEC |
| Jan 27, 2023 | Mackenzie Financial Corp | 13G/AOld format | – | – | – | SEC |
| Mar 3, 2022 | Mackenzie Financial Corp | 13GOld format | – | – | – | SEC |
| Mar 3, 2022 | Mackenzie Financial Corp | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | Caisse de Depot Et Placement du Quebec | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | Jarislowsky, Fraser Ltd | 13GOld format | – | – | – | SEC |
| Feb 4, 2022 | Mackenzie Financial Corp | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Jarislowsky, Fraser Ltd | 13GOld format | – | New | – | SEC |
| Feb 12, 2021 | Caisse de Depot Et Placement du Quebec | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Mackenzie Financial Corp | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Stantec Inc shares.
No Form 144 notices for Stantec Inc are on file.