Seabridge Gold Inc.
US ˙ NYSE ˙ CA8119161054

SecuritySA / Seabridge Gold Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership443,268 shares
Latest Disclosed Value $ 12,549,132
Dimensional Fund Advisors Lp reports 8.51% decrease in ownership of SA / Seabridge Gold Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 443,268 shares of Seabridge Gold Inc. (US:SA) valued at $12,562,215 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 484,494 shares of Seabridge Gold Inc.. This represents a change in shares of -8.51% during the quarter. The current value of the position is $13,040,945 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F SEABRIDGE GOLD COM 811916105 443,268 -41,226 -8.51 12,549 -12.48 0.0006
2026-02-12 2025-12-31 13F SEABRIDGE GOLD COM 811916105 484,494 -62,638 -11.45 14,340 8.55 0.0030
2025-11-12 2025-09-30 13F SEABRIDGE GOLD COM 811916105 547,132 112,797 25.97 13,211 109.55 0.0028
2025-08-12 2025-06-30 13F SEABRIDGE GOLD COM 811916105 434,335 38,977 9.86 6,304 36.63 0.0015
2025-05-13 2025-03-31 13F SEABRIDGE GOLD COM 811916105 395,358 16,607 4.38 4,614 6.81 0.0011
2025-02-13 2024-12-31 13F SEABRIDGE GOLD COM 811916105 378,751 2,663 0.71 4,321 -31.59 0.0010
2024-11-07 2024-09-30 13F SEABRIDGE GOLD COM 811916105 376,088 -19,636 -4.96 6,316 16.58 0.0015
2024-08-09 2024-06-30 13F SEABRIDGE GOLD COM 811916105 395,724 -38,731 -8.91 5,418 -17.52 0.0014
2024-05-10 2024-03-31 13F SEABRIDGE GOLD COM 811916105 434,455 28,400 6.99 6,569 33.36 0.0018
2024-02-07 2023-12-31 13F SEABRIDGE GOLD COM 811916105 406,055 2,793 0.69 4,926 15.75 0.0014
2023-11-09 2023-09-30 13F SEABRIDGE GOLD COM 811916105 403,262 25,545 6.76 4,255 -6.48 0.0014
2023-08-09 2023-06-30 13F SEABRIDGE GOLD COM 811916105 377,717 -34,747 -8.42 4,550 -14.83 0.0015
2023-05-12 2023-03-31 13F SEABRIDGE GOLD COM 811916105 412,464 7,469 1.84 5,343 106,740.00 0.0018
2023-02-09 2022-12-31 13F SEABRIDGE GOLD COM 811916105 404,995 2,475 0.61 5 -99.90 0.0015
2022-11-10 2022-09-30 13F SEABRIDGE GOLD COM 811916105 402,520 1,961 0.49 4,777 -4.10 0.0018
2022-08-12 2022-06-30 13F SEABRIDGE GOLD COM 811916105 400,559 28,577 7.68 4,981 -27.62 0.0018
2022-05-13 2022-03-31 13F SEABRIDGE GOLD COM 811916105 371,982 108,466 41.16 6,882 58.39 0.0021
2022-02-09 2021-12-31 13F SEABRIDGE GOLD COM 811916105 263,516 105,297 66.55 4,345 77.78 0.0013
2021-11-12 2021-09-30 13F SEABRIDGE GOLD COM 811916105 158,219 98,353 164.29 2,444 132.76 0.0008
2021-08-12 2021-06-30 13F SEABRIDGE GOLD COM 811916105 59,866 44,034 278.13 1,050 310.16 0.0003
2021-05-14 2021-03-31 13F SEABRIDGE GOLD COM 811916105 15,832 2,400 17.87 256 -9.54 0.0001
2021-03-08 2020-12-31 13F/A-2 SEABRIDGE GOLD COM 811916105 13,432 0 0.00 283 12.30 0.0001
2021-02-11 2020-12-31 13F SEABRIDGE GOLD COM 811916105 13,432 0 283 102.2046
2020-11-12 2020-09-30 13F SEABRIDGE GOLD COM 811916105 13,432 0 0.00 252 6.78 0.0001
2020-08-13 2020-06-30 13F SEABRIDGE GOLD COM 811916105 13,432 0 0.00 236 87.30 0.0001
2020-05-14 2020-03-31 13F SEABRIDGE GOLD COM 811916105 13,432 -17,573 -56.68 126 -70.56 0.0001
2020-02-14 2019-12-31 13F SEABRIDGE GOLD COM 811916105 31,005 0 0.00 428 8.91 0.0002
2019-11-12 2019-09-30 13F SEABRIDGE GOLD COM 811916105 31,005 0 0.00 393 -6.21 0.0002
2019-08-13 2019-06-30 13F SEABRIDGE GOLD COM 811916105 31,005 0 0.00 419 9.11 0.0002
2019-08-12 2019-03-31 13F/A-2 SEABRIDGE GOLD COM 811916105 31,005 0 0.00 384 -6.34 0.0002
2019-05-10 2019-03-31 13F SEABRIDGE GOLD COM 811916105 31,005 0 384
2019-02-26 2018-12-31 13F/A-1 SEABRIDGE GOLD COM 811916105 31,005 0 0.00 410 1.99 0.0002
2019-02-13 2018-12-31 13F SEABRIDGE GOLD COM 811916105 31,005 0 410
2018-11-13 2018-09-30 13F SEABRIDGE GOLD COM 811916105 31,005 0 0.00 402 16.18 0.0002
2018-08-10 2018-06-30 13F SEABRIDGE GOLD COM 811916105 31,005 0 0.00 346 3.28 0.0001
2018-05-11 2018-03-31 13F SEABRIDGE GOLD COM 811916105 31,005 31,005 335 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.