Institutional holders — Schedule 13G/13F
As of: 2026-04-29 (data through FY25 20-F filed 2026-02-27 + EDGAR Schedule 13G archive).
Confidence legend: ✓ verified-primary 13G/A or 20-F · ◐ aggregator-sourced · ⚠ inferred / estimate
1. Snapshot — top holders (per FY2025 20-F Item 7, dated 2025-12-31)
| Beneficial Owner | Shares | % O/S | Vehicle / Entity Type | Filing |
|---|---|---|---|---|
| Mubadala Investment Company PJSC | 450,387,613 | 81.0% | Abu Dhabi sovereign wealth fund | FY25 20-F Item 7 ✓ |
| FMR LLC (Fidelity Investments) | 55,462,583 | 10.0% | US asset manager | Schedule 13G/A No. 3 (acc. ~0000315066-26-XXXXXX, filed 2026-02-05) ✓ |
| Directors and named executive officers (group) | <5,565,563 (<1%) | <1% | Insider equity | FY25 20-F Item 7 |
| Public free float (excl. above) | ~50,000,000 | ~9% | Retail + smaller institutions | computed |
| Total ordinary shares outstanding | ~555,756,300 | 100% |
The FY25 20-F Item 7 disclosure of “as of December 31, 2025” is the authoritative anchor. Mubadala holds 81.0%; FMR (Fidelity) holds 10.0% — together accounting for 91% of outstanding shares, leaving approximately 9% true free float.
2. Mubadala — the 81% controlling shareholder
Mubadala holds GFS through two subsidiaries: MTIC and MTIIIC (Mubadala Technology Investments Company / Mubadala Technology III Investment Company), governed by the Mubadala Shareholder’s Agreement entered at the 2021 IPO.
2.1 13G filing history
| Date | Form | Mubadala shares | % | Notes |
|---|---|---|---|---|
| 2017-06-12 | SC 13G (initial) | n/d | n/d | Pre-IPO; initial public-domain filing |
| 2018-08-30 | SC 13G/A | n/d | n/d | Amendment |
| 2022-02-11 | SC 13G | n/d | ~89-90% | Post-IPO initial filing (acc. 0001387131-22-001675) |
| 2023-02-09 | SC 13G | ~493M | ~89% | Annual update (acc. 0000315066-23-001636) |
| 2024-02-09 | SC 13G/A | ~493M | ~89% | Amendment (acc. 0000315066-24-001128) |
| 2024-11-12 | SC 13G/A | ~452M | ~84% ⚠ | Post May 2024 follow-on selldown (acc. 0000315066-24-002696) |
| 2025-12-31 | (per 20-F Item 7) | 450,387,613 | 81.0% | FY25 anchor — definitive |
Mubadala has NOT filed a recent Schedule 13D (which would indicate active intent to influence company governance). All Mubadala filings are on Schedule 13G (passive-investor format), despite Mubadala’s 81% controlled-company position. This is consistent with the “founding-shareholder, long-term-strategic-investor” disclosure posture GFS established at the 2021 IPO.
2.2 Mubadala-related parties
The 77.05% Mubadala stake (post-March 2026 secondary; 81% per FY25 20-F as of 2025-12-31) is reported on consolidated basis but actually flows through:
- MTIC — Mubadala Technology Investments Company (largest tranche)
- MTIIIC — Mubadala Technology III Investment Company (smaller tranche)
- Other Abu Dhabi-government-controlled entities
The 20-F Shareholder’s Agreement uses 25% threshold for Abu Dhabi-government holders aggregate (broader than just Mubadala) — implying that other Abu Dhabi entities may hold incremental positions outside the MTIC + MTIIIC tranches.
2.3 Forward-looking — F-3ASR shelf optionality
- March 2026 F-3ASR shelf registration (acc. 0001709048-26-000028, 2026-03-11) opens forward selldown without further filing burden.
- No specific selldown announced as of 2026-04-29.
- Historical pace ~2 percentage points per year.
- Next likely tranche: $1.0-1.8B at $60+/share if Mubadala chooses to act.
3. FMR LLC (Fidelity) — the 10% second-largest holder
FMR LLC holds GFS through its various Fidelity-branded mutual funds (Magellan, Contrafund, Blue Chip Growth, Growth Company, etc.) and institutional separate-account vehicles. The 13G filings reflect aggregated FMR holdings across these vehicles.
3.1 FMR 13G filing history
| Date | Filing | Shares | % | Notes |
|---|---|---|---|---|
| 2024-11-12 | Schedule 13G/A | 49,375,400 | 8.888% | (acc. 0000315066-24-002696) ✓ |
| 2026-02-05 | Schedule 13G/A No. 3 | 55,462,583 | 10.0% | Per FY25 20-F Item 7 reference ✓ |
FMR built its position from 8.888% (Nov 2024) to 10.0% (Feb 2026) — adding approximately 6.1M shares over the period. The expansion coincided with the cycle-trough share-price period (Q1-Q3 2025) when GFS traded $30-40/share — implying FMR was a counter-cyclical buyer at the trough.
Read. FMR’s 1.1 percentage-point expansion in 14 months at trough pricing is a meaningful institutional-conviction signal. Combined with the absence of insider buys, FMR’s accumulation is the clearest institutional bullish signal in the period.
3.2 FMR ownership characteristics
- FMR’s 55.5M shares represent approximately 66% of “non-Mubadala” public float (55.5M of ~83M float-eligible)
- The position size makes FMR structurally significant for liquidity: any FMR rebalancing decision moves the market materially
- FMR is a passive-format Schedule 13G filer — same posture as Mubadala — meaning no active campaigning for board changes or strategic actions
4. Schedule 13F holders — Q1 2026 window opening
Q1 2026 13F filing window opens 2026-05-15 (45 days after Q1 close 2026-03-31). As of 2026-04-29, the Q1 2026 13F window is just opening and most Q1-positioning data is not yet public.
13F-eligible holders typically appear in the GFS holder list at the institutional-investor / hedge-fund tier. Based on aggregator data (which is partial-period and reflects most-recent Q4 2025 filings), notable 13F holders include:
- Vanguard Group — index-fund tracking; estimated ~5-6M shares ⚠
- BlackRock — index + active; estimated ~3-4M shares ⚠
- State Street — index; estimated ~1.5-2M shares ⚠
- Various active-managed mutual funds and hedge funds — collectively ~3-5M shares ⚠
The aggregator-derived institutional ownership total per STOCK_PRICE_DATA.json is 14.0% — but this combines FMR (10.0%) with the other 13F filers, not adding to Mubadala’s 81%. So the aggregate “non-Mubadala-non-retail” institutional position is approximately 14% × 555.8M = 77.8M shares — roughly the entire non-Mubadala non-insider float.
Read. The institutional-holder concentration in GFS post-Mubadala is highly concentrated in FMR + the major index funds (Vanguard, BlackRock, State Street). True “active long-only” ownership outside FMR is small (<2-3% of outstanding). This means GFS price action is heavily influenced by the interaction of Mubadala (77.05%, post-March 2026) + FMR (10%) + index passive flows + retail / hedge fund flows on the residual ~13% float.
5. Q1 2026 13F filing watchlist
When the Q1 2026 window closes (deadlines around mid-May 2026), expected new disclosures include:
- Vanguard / BlackRock / State Street — index-fund Q1 2026 rebalancing (modest ~1-2% positional changes)
- Active mid-cap-growth funds — looking for which funds added GFS during the cycle-trough Q1 2026
- Hedge funds with new positions — high-conviction long-only or activist signals
- Hedge funds covering shorts — if any 13F-disclosed prior shorts have been unwound
The KB will refresh post the 2026-05-15 filing deadline.
6. Comparison to peer institutional ownership
| Peer | Largest holder | % | 2nd largest | % |
|---|---|---|---|---|
| GFS | Mubadala | 81.0% | FMR LLC | 10.0% |
| MRVL | Vanguard | ~12% ⚠ | BlackRock | ~9% ⚠ |
| TSM (TSMC ADR) | Various | dispersed | n/a | n/a |
| UMC | Various Taiwan | dispersed | n/a | n/a |
| SMIC | China state-affiliated | majority | n/a | n/a |
| Tower Semiconductor | Various institutional | dispersed | n/a | n/a |
GFS is uniquely controlled-by-sovereign in the foundry comp-set. SMIC’s Chinese state alignment is the closest analog but operates through different vehicles. The 77.05% Mubadala stake is an outlier — most US-listed mid/large-cap semis trade with widely dispersed institutional ownership.
7. Open items / backfill queue
- Q1 2026 13F filings (deadline 2026-05-15) — Vanguard, BlackRock, State Street, and active funds. Refresh KB post-deadline.
- Mubadala 13G/A confirmation — most recent Mubadala filing date and any incremental disclosure since the FY25 20-F.
- FMR Schedule 13G/A No. 3 direct extraction — confirm the 55.5M / 10.0% figure from the actual filing (currently sourced via FY25 20-F reference).
- Hedge-fund / activist holders — any 5%+ holder beyond Mubadala and FMR? None currently disclosed but watch for emerging concentration.
- Insider group total — FY25 20-F Item 7 marks all individual insiders as “<1%” — total group ownership is therefore <5% of outstanding (likely ~1-2%).
Sources
- GFS FY2025 20-F, acc. 0001709048-26-000022, filed 2026-02-27 — SEC EDGAR — Item 7 Major Shareholders disclosure with Mubadala 81.0% + FMR 10.0% as of 2025-12-31.
- Schedule 13G/A archive (Mubadala / FMR):
- SC 13G acc. 0000947871-17-000448 (2017-06-12)
- SC 13G/A acc. 0000947871-18-000720 (2018-08-30)
- SC 13G acc. 0001387131-22-001675 (2022-02-11)
- SC 13G acc. 0000315066-23-001636 (2023-02-09)
- SC 13G/A acc. 0000315066-24-001128 (2024-02-09)
- SC 13G/A acc. 0001999371-24-014307 (2024-11-06)
- SC 13G/A acc. 0000315066-24-002696 (2024-11-12 — FMR LLC 8.888%)
- STOCK_PRICE_DATA.json — institutional ownership 14.0% aggregate read.
Cross-references
- insider history — Form 4 ledger
- short interest history — short-side positioning
- share count dilution — share-count base
- mubadala related party — Mubadala Shareholder’s Agreement detail
- capital returns — buyback + dividend framework