Confidence legend: ✓ SEC-filing-verified or GF-press-release-verified · ◐ partial / aggregator (Wikipedia, Reuters, etc.) · ⚠ inferred / community-source / awaiting primary citation.

This page is the canonical chronological reference for any thesis claim that invokes GFS corporate history. Capital-event rows trace to 6-K accession numbers or the F-1 prospectus. Manufacturing-footprint rows trace to GF press releases or the 20-F Item 4.A “History and Development of the Company” narrative. Every dollar figure that lacks a primary citation is flagged ⚠.

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Pre-Formation (2008)

• 2008-10-07: AMD announces fabless transition — plan to spin off the manufacturing arm into a new company temporarily called “The Foundry Company” with backing from the Mubadala-affiliated Advanced Technology Investment Company (ATIC). ◐ Wikipedia — GlobalFoundries history
• 2008-12-08: Amended terms disclosed — AMD retains ~34.2%, ATIC takes ~65.8% of “The Foundry Company”; ATIC commits a $700M increase to its semiconductor stake. ◐ Wikipedia

Formation Era (2009–2014)

• 2009-03-04: GLOBALFOUNDRIES officially launches. Doug Grose (former AMD SVP Manufacturing Operations) named CEO; Hector Ruiz (former AMD Executive Chairman) named Chairman. ✓ Mubadala press release — “World’s First Global Semiconductor Foundry Company Opens for Business”
• 2009-09-07: ATIC announces agreement to acquire Chartered Semiconductor Manufacturing (Singapore) for ~$3.9B in cash + assumed debt; intent to fold Chartered into GF. ◐ Network World — ATIC to buy Chartered
• 2010-01-13: Chartered acquisition closes, integrated into GF as the Singapore manufacturing hub (Woodlands Industrial Park). The Singapore site was originally opened by Chartered Semiconductor in 1995 as one of the first 200mm fabs. ◐ GF Facebook — Chartered acquisition fact
• 2011 (calendar year): Fab 8 (Malta, NY) construction completed; site becomes GF’s flagship 300mm leading-edge facility. ⚠ approximate calendar — confirm with 20-F Item 4.A in next refresh.
• 2014-10-20: GlobalFoundries and IBM sign Definitive Agreement for GF to acquire IBM’s commercial semiconductor business (IBM Microelectronics) — including the 200mm Burlington VT fab and the 300mm East Fishkill NY fab. IBM agrees to pay GF $1.5B over three years to take the business. ✓ GF press release — Acquisition Announcement

IBM Era and Specialty Pivot (2015–2020)

• 2015-07-01: IBM Microelectronics acquisition closes. GF takes ownership of Burlington VT (now Fab 9) and East Fishkill NY (now Fab 10). Supply agreement: GF becomes sole supplier of IBM server processor chips for 10 years. ✓ GF press release — Acquisition Completed
• 2018 (early): Tom Caulfield appointed CEO of GF (former GM of Fab 8 Malta site). ◐ Wikipedia — Caulfield
• 2018-01 (approx.): Tim Breen elected to GF’s board of directors; serves as Strategy & Investment Committee member. Joined GF from senior leadership at Mubadala Investment Company (prior career: McKinsey & Company, Abu Dhabi partner). ✓ GF leadership bio — Tim Breen
• 2018-08-27: GF halts 7nm FinFET development indefinitely. Caulfield’s strategic rationale: $2–4B incremental capex needed to ramp 40–50K wafers/month at 7nm, with end-market demand expected to sit “two-thirds” at 12nm-and-above through 2022. R&D resources redeployed to 14LP/12LP+ enhancement plus differentiated specialty platforms (RF SOI, embedded NVM, silicon photonics, GaN). ✓ GF press release — Reshapes Technology Portfolio ; ✓ AnandTech — GF Stops All 7nm Development
• 2018 (also): GF ceased the Fab 11 (Chengdu, China) 22FDX joint-venture project, suspending the planned $10B partnership with the Chengdu municipal government. ⚠ Wikipedia summary — confirm in 20-F.
• 2019–2021: Pivot execution years. Caulfield-era operating discipline: focus on free cash flow over revenue growth; sell non-strategic assets; deepen relationships with auto / RF / IoT customers; build the silicon-photonics differentiation pillar (Fotonix). ⚠ characterization, not single-source citation; revenue cadence verifiable in 20-F.

IPO Era (2021)

• 2021-10-04: Form F-1 filed with SEC for proposed IPO. ✓ SEC EDGAR — F-1
• 2021-10-19: GF announces launch of IPO. ✓ GF press release
• 2021-10-27: IPO priced at $47.00 per share, 55,000,000 ordinary shares total — 30,250,000 sold by GF (primary), 24,750,000 by Mubadala (secondary). Underwriter overallotment option granted Mubadala on additional 8,250,000 shares. SEC declares the registration statement effective. ✓ GF press release — IPO pricing
• 2021-10-28: GFS commences trading on the NASDAQ Global Select Market under ticker symbol “GFS.” Shares opened above the IPO price; gross IPO proceeds ~$2.6B (top of range, per Bloomberg). ◐ Bloomberg — GlobalFoundries, Mubadala Raise $2.6B in U.S. IPO
• 2021-11-01: IPO closes; Mubadala retains majority control post-IPO (~89% of outstanding shares pre-secondary deals). ⚠ exact post-IPO percentage requires 13G/A cross-check.

Specialty-Foundry Operating Era (2022–2024)

• 2022 (calendar year): GF divests Fab 10 (East Fishkill, NY) to onsemi as part of the broader refocus on differentiated specialty platforms. ⚠ Wikipedia summary; confirm in 20-F Item 4.A and onsemi 10-K cross-reference.
• 2022-03 (approx.): GlobalFoundries Fotonix announced as the next-generation silicon-photonics platform combining 45nm SOI CMOS with photonic devices on the same monolithic die. ✓ GF press release — Next Generation Silicon Photonics
• 2024-02-19: CHIPS Act preliminary memorandum of terms announced — up to $1.5B direct funding to GF for Malta NY + Burlington VT projects. ✓ Vermont Business Magazine — GF gets $1.5B ; ✓ Commerce.gov press release
• 2024-05 (mid-month): Mubadala secondary offering — Mubadala Technology Investment Company sold a block of GF shares raising ~$950M; stake decreased from ~85% (pre-offering) to ~81.63% (post-offering, Q3 2024 disclosure). ◐ AGBI — Mubadala trims GF stake (May 2024) ; ◐ Zawya — Mubadala unit to raise $950M
• 2024-11-20: CHIPS Act final award — Department of Commerce signs definitive agreement with GF for the $1.5B in direct funding, matched by $550M+ from NY State Green CHIPS, plus VT-state and ecosystem-partner contributions. Funds support: (a) Malta Fab 8 capacity expansion, (b) Vermont Fab 9 GaN buildout, (c) construction of a new state-of-the-art fab on the Malta campus. Combined: ~1,000 manufacturing jobs + ~9,000 construction jobs. ✓ GF press release — CHIPS Act Award Agreement

Leadership Transition Cluster (2025)

• 2025-02-05: Leadership transition announced — effective 2025-04-28: Tim Breen succeeds Tom Caulfield as CEO; Caulfield becomes Executive Chairman (succeeding Ahmed Yahia, who steps down after 11 years as Chairman); Niels Anderskouv becomes President & COO (succeeding Breen as COO). ✓ GF press release — Leadership Transition
• 2025-03-20: Form 20-F filed for fiscal year 2024 (accession 0001709048-25-000024). FY2024 revenue $6.750B (-9% YoY); net loss $729M (driven by asset impairment); $4.2B cash + marketable securities at year-end; non-IFRS adjusted free cash flow >$1B. ✓ GF press release — Q4’24 / FY2024 Results
• 2025-04-28: Leadership transition takes effect. Breen formally CEO; Caulfield formally Executive Chairman; Anderskouv formally President & COO. ✓ same press release as 2025-02-05.
• 2025-10-27: CFO John Hollister departs (personal reasons, effective immediately). Sam Franklin (SVP Business Finance, Operations & Investor Relations) appointed Interim CFO. Hollister had been CFO for less than two years. ◐ Investing.com — GF CFO Hollister departs, Franklin steps in
• 2025-10-28: Project SPRINT announced — €1.1B investment in Dresden to scale capacity to >1M wafers/year by end-2028 under EU Chips Act framework. €495M EU state-aid package approved. ✓ GF press release — Dresden Investment
• 2025-11-17: Acquisition of Advanced Micro Foundry (AMF) announced — Singapore-based pure-play silicon-photonics foundry; 15+ years of manufacturing expertise; 200mm platform with planned migration to 300mm; transaction makes GF “the largest pure-play silicon photonics foundry by revenue.” Center of Excellence to be established with Singapore A*STAR for 400Gbps next-generation materials R&D. Financial terms not disclosed. ✓ GF press release — AMF Acquisition ; ◐ TrendForce — largest pure-play SiPh foundry
• 2025-12 (mid-month): Sam Franklin’s Interim CFO role made permanent — Franklin formally appointed CFO. Pre-GF (joined 2022): senior finance roles at Mubadala, MUFG Bank, Barclays. ◐ StartupNews — GF names Sam Franklin as CFO
• 2025-12-18: Holding Foreign Insiders Accountable Act (HFIAA) signed into law, ending the Section 16(a) carve-out for Foreign Private Issuers. Effective date: 2026-03-18. From the effective date, GF officers/directors must file Form 3 (initial) within 90 days and Form 4 (changes) within 2 business days going forward. ✓ Harvard CorpGov — Section 16(a) FPI Exemption Ends

Recent (2026 YTD)

• 2026-02-11: Q4 2025 / FY2025 earnings released — FY2025 revenue $6.79B (+1% YoY); FY2025 net income $888M (vs FY2024 net loss $729M); non-IFRS gross margin 26.1% (+80bps); non-IFRS EPS $1.72 (+10%); FY2025 net cash from operations $1.731B; non-IFRS adjusted free cash flow $1.157B. Concurrent disclosure: Niels Anderskouv resigning as President & COO effective 2026-03-02 (to pursue another professional opportunity). Board approves new $500M share-repurchase authorization. ✓ GF press release — Q4’25 / FY2025 Results ; ◐ StreetInsider — Anderskouv to resign
• 2026-03-02: Anderskouv departure effective. President / COO responsibilities absorbed by Breen and other members of the executive leadership team (no successor named). ⚠ inferred-vacancy; confirm in 6-K.
• 2026-03-11: Underwriting agreement signed for Mubadala secondary offering — JP Morgan and Morgan Stanley as lead underwriters; total 27,344,840 shares; 30-day overallotment option for an additional 3,000,000 shares. ◐ Cleary Gottlieb — GF $840M Secondary Offering & $300M Repurchase
• 2026-03-13: Mubadala secondary offering closes — 20,000,000 shares sold to public at $42.00; 7,344,840 shares simultaneously repurchased by GF from underwriters at $40.845 (~$300M aggregate, executed under the $500M repurchase authorization approved Feb 2026). Mubadala stake reduced from ~80%-range to 77.05% (Schedule 13G/A reports 423,042,773 shares of 549,072,416 outstanding). ◐ TipRanks — GF Closes Mubadala Secondary + $300M Buyback ; ✓ Schedule 13G/A — Mubadala et al.
• 2026-03-16: Lightwave Logic high-speed modulator platform PDK availability announced — Lightwave Logic’s electro-optic polymer modulator made available via the GDSFactory PDK for GlobalFoundries’ silicon-photonics platform. Validation tape-outs scheduled for 200G and 400G/lane through 2026, with further runs scheduled within calendar 2026. Note: this is a validation-tape-out availability announcement, NOT a commercial-PDK release — the original GFS KB hub-page brief stated “commercial PDK live since Mar 2026,” which conflicts with the LWLG primary-source language (“validation tape-outs”). ✓ Lightwave Logic news — Modulator Platform Now Available in GDSFactory PDK
• 2026-03-18: HFIAA effective date. GF officers/directors begin filing Form 3 (initial). Form 4 reporting under Section 16(a) becomes operative going forward. ✓ Harvard CorpGov — HFIAA effective
• 2026-04-23: Saam Azar (Chief Legal Officer) Form 4 filing — sale of 500 ordinary shares at $59.66/share under Rule 10b5-1 plan; consistent with the post-secondary-offering lockup expiry / pre-arranged trading-plan execution. ◐ stocktitan.net — GFS Form 4 Azar
• 2026-04-29 (KB cutoff): GFS closing price ~$59.66 (per latest Form 4 reference price); FY26-Q1 earnings expected May 2026 (specific date TBD). ⚠ price snapshot trace to companies/gfs/data/price_snapshot.json on next refresh.

Fiscal Year & Disclosure Notes

• Fiscal year ends Dec 31 (calendar year).
• Reporting framework: IFRS as issued by IASB. Non-IFRS metrics (adjusted gross margin, adjusted EPS, adjusted free cash flow) reported alongside IFRS figures in earnings releases.
• Foreign Private Issuer status: Cayman-incorporated; meets FPI definition. Files Form 20-F (annual) + 6-K (interim). DEF 14A does not apply; proxy-equivalent disclosure lives in 20-F Item 6 + Cayman-law-required general-meeting notices.
• Section 16 / Form 4 reporting: Historically NOT applicable; applies from 2026-03-18 forward under HFIAA. ✓ Harvard CorpGov reference cited above.
• Cross-reference: ./mna_history for deal-by-deal detail; ./leadership for executive bios; ./governance for board-committee mechanics; ./mubadala_control_structure for the Mubadala-affiliated-entity architecture; overview for capital-structure detail; overview for the daily-refresh price / short-interest / Form 4 feed.