% of shares outstanding not shown: this line files 20-F annual reports only — a foreign private issuer whose US listing trades as ADSs (depositary receipts), while its cover-page share count is in ORDINARY shares. The depositary ratio is not in our data. The count we hold for this line is 834,829,150 shares (as of 2026-02-28, source dei). Dividing one by the other is wrong by the whole ratio (a 5:1 ADR reads one fifth of the true percentage), so the percentage is withheld rather than served wrong. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for SOGP in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Ma Investment Partnership, LP | 100,000100,000 | $2M | — | — |
| 2 | GROUP ONE TRADING LLC | 9,9459,945 | $167,872 | — | TRIM -48% |
| 3 | SIMPLEX TRADING, LLC | 1,9431,943 | $32,797 | — | ADD 139% |
| 4 | RHUMBLINE ADVISERS | 1,8861,886 | $31,833 | — | TRIM -16% |
| 5 | JONES FINANCIAL COMPANIES LLLP | 850850 | $14,187 | — | — |
| 6 | UBS Group AG | 595595 | $10,044 | — | ADD 2605% |
| 7 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 100100 | $1,688 | — | — |
| 8 | MORGAN STANLEY | 7070 | $1,182 | — | TRIM -100% |
| 9 | Physician Wealth Advisors, Inc. | 4848 | $811 | — | — |
| 10 | BNP PARIBAS FINANCIAL MARKETS | 2020 | $338 | — | TRIM -96% |
| 11 | SBI Securities Co., Ltd. | 1010 | $169 | — | TRIM -9% |
| 12 | Federation des caisses Desjardins du Quebec | 33 | $51 | — | — |
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Ma Investment Partnership, LP | — | — | — | — | 100K | 100K | $2M |
| GROUP ONE TRADING LLC | — | — | — | 11K | 19K | 10K | $167,872 |
| SIMPLEX TRADING, LLC | — | — | 4K | 10K | 814 | 2K | $32,797 |
| RHUMBLINE ADVISERS | 7K | 7K | 7K | 3K | 2K | 2K | $31,833 |
| JONES FINANCIAL COMPANIES LLLP | — | — | 1K | 900 | 850 | 850 | $14,187 |
| UBS Group AG | 145 | 3K | 90 | 40 | 22 | 595 | $10,044 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 100 | 100 | 100 | 100 | 100 | 100 | $1,688 |
| MORGAN STANLEY | 270 | 970 | 1K | 5K | 28K | 70 | $1,182 |
| Physician Wealth Advisors, Inc. | — | — | — | — | 48 | 48 | $811 |
| BNP PARIBAS FINANCIAL MARKETS | 940 | 1K | 1K | 1K | 520 | 20 | $338 |
| SBI Securities Co., Ltd. | 10 | 10 | 20 | — | 11 | 10 | $169 |
| Federation des caisses Desjardins du Quebec | — | — | — | 3 | 3 | 3 | $51 |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 12 | 115,470 | — | $2M |
| 2025-Q4 | 14 | 164,054 | — | $2M |
| 2025-Q3 | 12 | 97,560 | — | $2M |
| 2025-Q2 | 13 | 103,684 | — | $490,900 |
| 2025-Q1 | 12 | 172,823 | — | $379,266 |
| 2024-Q4 | 9 | 59,948 | — | $125,967 |
| 2024-Q3 | 10 | 61,841 | — | $153,662 |
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Holder | % of class | Type | As of | |
|---|---|---|---|---|
| Morris John Benjamin | 7% | Passive | 2026-04-30 | SEC → |
Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| SIMPLEX TRADING, LLC | +1,129 | $19,058 | ADD |
| UBS Group AG | +573 | $9,672 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| MORGAN STANLEY | −27,492 | $464,065 | TRIM |
| CITADEL ADVISORS LLC | −12,517 | $211,287 | CLOSE |
| GROUP ONE TRADING LLC | −9,267 | $156,427 | TRIM |
| BNP PARIBAS FINANCIAL MARKETS | −500 | $8,440 | TRIM |
| RHUMBLINE ADVISERS | −371 | $6,262 | TRIM |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| 2024-Q2 |
| 12 |
| 79,246 |
| — |
| $163,048 |
| 2024-Q1 | 12 | 85,429 | — | $291,236 |
| 2023-Q4 | 9 | 89,341 | — | $243,387 |
| 2023-Q3 | 11 | 82,752 | — | $317,650 |
