Recent 8-K filings for ASPI

• May 26, 2026, 8:01 AM ET other material materiality 0.60 positive item 7.01item 9.01

  ASP Isotopes restarts first 18 stages of Si-28 enrichment; expects Q3 2026 commercial shipments

  Announced successful restart of first 18 stages of Silicon-28 enrichment facility in Pretoria, South Africa.

• May 20, 2026, 5:15 PM ET other material materiality 0.10 neutral item 7.01

  ASP Isotopes posts updated investor presentation; no specific financial data disclosed

  Presentation posted on company website on May 20, 2026.

• May 11, 2026, 7:59 PM ET other material materiality 0.65 positive item 7.01item 9.01

  ASPI subsidiary QLE signs MOU to supply HALEU to European reactor developer

  Non-binding MOU between QLE (ASPI subsidiary) and a European nuclear technology company for HALEU supply.

• May 6, 2026, 7:59 PM ET other material materiality 0.55 positive item 7.01item 9.01

  ASP Isotopes subsidiary QLE appoints Dr. Peter Fiske to Strategic Advisory Board

  Dr. Fiske is founding Executive Director of DOE's $110M NAWI energy-water innovation hub at Lawrence Berkeley Lab.

• April 13, 2026, 7:59 PM ET other material materiality 0.85 positive item 7.01item 9.01

  ASP Isotopes targets first commercial shipments in 2026 and >$300M EBITDA by 2031

  First commercial shipments of Silicon-28, Carbon-14, and Ytterbium-176 expected in Q2–Q3 2026.

• April 10, 2026, 7:59 PM ET other material materiality 0.15 neutral item 7.01item 9.01

  ASP Isotopes schedules business update call for April 13, 2026 at 8:00 AM ET

  CEO Paul Mann will host the call; dial-in +1.646.968.2525 (conference ID 5073116).

• March 24, 2026, 7:59 PM ET M&A materiality 0.40 negative item 9.01

  ASP Isotopes files Renergen financials and pro forma; risk factors highlight Phase 2 obstacles

  Filed Renergen unaudited financials for six months ended Aug 31, 2025, and pro forma combined data for periods ended Sep 30, 2025 and Aug 31, 2025, and year ended Dec 31, 2024/Feb 28, 2025.

• March 24, 2026, 7:59 PM ET other material materiality 0.65 positive item 7.01item 9.01

  ASP Isotopes subsidiary QLE partners with University of Bristol on lithium laser research facility design

  UK subsidiary of Quantum Leap Energy (QLE) and University of Bristol to design a lithium laser enrichment research facility.

• March 23, 2026, 7:59 PM ET other material materiality 0.75 positive item 7.01item 9.01

  ASP Isotopes completes Phase 1 drilling for Renergen Helium Project 4 months early; cites Qatar supply disruption

  Completed well drilling for Phase 1 of Renergen Helium Project in South Africa, four months ahead of schedule.

• March 10, 2026, 7:59 PM ET other materiality 0.15 neutral item 7.01item 9.01

  ASP Isotopes to present at Canaccord Genuity Virtual Sustainability Summit on March 12

  CEO Paul Mann will participate in a fireside chat at the Summit on Thursday, March 12, 2026 at 3:20 p.m. ET.

• March 6, 2026, 6:59 PM ET other material materiality 0.60 positive item 7.01item 9.01

  ASP Isotopes' subsidiary QLE signs MOU with major U.S. energy co. for nuclear fuel supply chain

  Quantum Leap Energy (ASPI subsidiary) signs non-binding MOU with large U.S. energy company.

• March 5, 2026, 6:59 PM ET leadership materiality 0.55 positive item 7.01item 9.01

  ASP Isotopes subsidiary Quantum Leap Energy names Dr. Nate Salpeter as CTO

  Dr. Nate Salpeter appointed CTO of Quantum Leap Energy, ASP Isotopes' subsidiary.

• February 23, 2026, 6:59 PM ET other material materiality 0.75 positive item 7.01item 9.01

  ASP Isotopes subsidiary signs pre-implementation contract with Necsa for HALEU enrichment

  Contract executed Feb 20, 2026 between QLE SA (ASPI subsidiary) and Necsa for enrichment facility at Pelindaba.

• February 19, 2026, 6:59 PM ET other material materiality 0.40 neutral item 7.01item 9.01

  ASPI subsidiary QLE establishes Strategic Advisory Board, appoints Dunzik-Gougar and Kramer

  Quantum Leap Energy (QLE), wholly-owned subsidiary of ASP Isotopes, formed a Strategic Advisory Board to guide nuclear fuel cycle initiatives.

• February 17, 2026, 6:59 PM ET other material materiality 0.60 positive item 7.01item 9.01

  ASP Isotopes subsidiary Quantum Leap Energy to establish HQ in Austin, TX; plans HALEU facility with Fermi America

  QLE, wholly owned by ASPI, will set up global headquarters in Austin, Texas, citing the state's pro-nuclear stance.

• January 30, 2026, 6:59 PM ET other material materiality 0.60 neutral item 1.01 ◈ Material Agreements

  ASP Isotopes invests ~$10M in Opeongo, gets right of first offer on medical isotope supply

  Purchased 4,356,918 Series Seed-1 Preferred shares of Opeongo at $2.2952 per share (approx $10M investment).

• January 29, 2026, 6:59 PM ET other material materiality 0.75 positive item 7.01item 9.01

  ASP Isotopes reports 80% drilling success, 60% gas throughput increase at Renergen Helium Project

  15 of 18 wells hit gas (80% success) post-restart; Kinley Exploration engaged for reservoir modeling.

• January 12, 2026, 6:59 PM ET leadership materiality 0.60 neutral item 5.02

  ASP Isotopes appoints Renergen's CEO Marani as President, COO Mitchell as Co-COO after deal close

  Stefano Marani appointed President, Electronics and Space; Nick Mitchell appointed Co-Chief Operating Officer, effective Jan 6, 2026.

• January 7, 2026, 6:59 PM ET M&A materiality 0.80 positive item 2.01item 3.02item 8.01item 9.01 ◈ M&A Transactions

  ASP Isotopes closes acquisition of Renergen; issues 14.27M shares; new execs appointed

  Acquired all Renergen shares via scheme of arrangement; exchange ratio 0.09196 ASPI share per Renergen share.

• December 19, 2025, 6:59 PM ET other material materiality 0.15 neutral item 5.07

  ASP Isotopes announces results of 2025 Annual Meeting; elects two Class III directors

  Shareholders elected Sipho N. Maseko (40.6M for, 315K withheld) and Todd Wider (24.1M for, 16.8M withheld).

• December 18, 2025, 6:59 PM ET M&A materiality 0.75 neutral item 7.01

  ASP Isotopes receives compliance certificate for Renergen scheme; implementation timeline set

  South African Takeover Panel issued compliance certificate for scheme to acquire Renergen Ltd.

• December 17, 2025, 6:59 PM ET M&A materiality 0.75 positive item 8.01item 9.01

  ASP Isotopes receives all regulatory approvals for Renergen acquisition; scheme unconditional

  All regulatory approvals obtained for acquisition of Renergen via scheme of arrangement under South African law.

• December 8, 2025, 6:59 PM ET leadership materiality 0.50 neutral item 5.02

  Paul Mann to resume CEO role at ASP Isotopes on Jan 19, 2026; Ainscow returns to COO

  Founder/Exec Chairman Paul Mann reassumes CEO role effective Jan 19, 2026, after medical leave.

• December 3, 2025, 6:59 PM ET leadership materiality 0.55 neutral item 8.01item 9.01

  ASP Isotopes founder Paul Mann to return as CEO on Jan 19, 2026 after health leave

  Paul Mann resumes CEO role effective Jan 19, 2026; continues as Executive Chairman.

• November 28, 2025, 6:59 PM ET M&A materiality 0.60 neutral item 1.01item 8.01item 9.01

  ASP Isotopes extends Renergen acquisition deadline to Jan 30, 2026; awaits FinSurv approval

  Longstop date for Renergen acquisition extended to Jan 30, 2026 to allow time for remaining regulatory conditions.

• November 21, 2025, 6:59 PM ET other materiality 0.15 neutral item 7.01item 9.01

  ASP Isotopes releases Q3 2025 business update presentation without specific financial figures

  Filed an 8-K on Nov 21, 2025 attaching a presentation for its quarterly business update conference.

• November 17, 2025, 6:59 PM ET other materiality 0.05 neutral item 7.01item 9.01

  ASP Isotopes schedules quarterly business update call for Nov 21, 2025

  Call on Friday, Nov 21, 2025 at 8:30 a.m. Eastern Time.

• November 14, 2025, 6:59 PM ET debt materiality 0.85 neutral item 1.01item 2.03item 3.02item 9.01 ◈ Debt Financings

  ASP Isotopes subsidiary QLE raises ~$64.3M via convertible notes at 8% interest, existing 2024 notes auto-convert

  QLE issued ~$64.3M in 8% convertible notes due Nov 2030; proceeds for laser enrichment facilities.

• November 12, 2025, 6:59 PM ET other materiality 0.60 neutral item 7.01item 9.01

  ASP Isotopes subsidiary QLE confidentially files draft S-1 for proposed IPO

  Quantum Leap Energy LLC (wholly-owned subsidiary) submitted draft Form S-1 to SEC for IPO of Class A common stock.

• November 7, 2025, 6:59 PM ET debt materiality 0.75 positive item 7.01item 9.01

  QLE subsidiary raises $64.3M via convertible notes; Eric Trump, Donald Trump Jr. invest

  Initial closing of $64.3M aggregate principal amount of QLE convertible notes, led by American Ventures LLC.

• November 5, 2025, 6:59 PM ET regulatory materiality 0.60 positive item 8.01item 9.01

  ASP Isotopes UK unit begins regulatory engagement for HALEU production; hires Rich Deakin

  Quantum Leap Energy Ltd (QLE) starts early engagement with UK Office for Nuclear Regulation (ONR).

• October 23, 2025, 7:59 PM ET other material materiality 0.65 positive item 8.01item 9.01

  ASP Isotopes subsidiary Quantum Leap Energy acquires One 30 Seven assets for nuclear waste processing

  Acquired substantially all assets of One 30 Seven Inc. for $150k cash and 266,113 ASPI shares (~$2.85M).

• October 16, 2025, 7:59 PM ET other material materiality 0.70 neutral item 1.01item 8.01item 9.01

  ASP Isotopes prices 17.2M share offering at $11.65 for $210.3M gross proceeds

  Offering of 17,167,380 shares at $11.65 each; gross proceeds ~$210.3M before expenses.

• October 14, 2025, 7:59 PM ET other material materiality 0.70 positive item 8.01item 9.01

  ASP Isotopes signs largest silicon-28 supply contract; acquires Florida radiopharmacy

  Entered supply contract for enriched silicon-28 with U.S. customer, largest to date; deliveries expected Q1 2026.

• October 3, 2025, 7:59 PM ET leadership materiality 0.70 negative item 5.02

  CEO Paul Mann steps down for health reasons; COO Robert Ainscow named Interim CEO

  Effective Oct 1, 2025, Paul Mann becomes Executive Chairman; takes temporary CEO leave for health reasons.

• September 30, 2025, 7:59 PM ET other material materiality 0.45 positive item 7.01item 9.01

  ASP Isotopes receives purchase order for enriched Barium-137; delivery Q1 2026

  Purchase order from a US-based customer for enriched Barium-137, with delivery scheduled during Q1 2026.

• September 29, 2025, 7:59 PM ET leadership materiality 0.70 neutral item 8.01item 9.01

  CEO Paul Mann steps down to Executive Chairman on health leave; COO Ainscow named Interim CEO

  Paul Mann becomes Executive Chairman, taking temporary leave from CEO duties for health reasons (orthopedic surgery recovery may take several months).

• September 22, 2025, 7:59 PM ET other material materiality 0.75 neutral item 8.01

  ASP Isotopes subsidiary QLE acquires 79% voting control of Skyline Builders (SKBL) for $1M

  QLE bought 1,995,000 Class B shares from Supreme Development for $1M; each carries 20 votes.

• September 15, 2025, 7:59 PM ET M&A materiality 0.60 neutral item 7.01

  ASP Isotopes extends longstop date for Renergen acquisition to Nov 28, 2025

  Longstop date for Renergen scheme of arrangement extended from Sep 30 to Nov 28, 2025.

• September 8, 2025, 7:59 PM ET leadership materiality 0.30 neutral item 5.02

  ASPI expands board to seven, elects Ralph L. Hunter as Class II director

  Board increased to seven members; Hunter elected effective Sept. 8, 2025, as Class II director with term through 2027 annual meeting.

• September 2, 2025, 7:59 PM ET other material materiality 0.80 positive item 7.01item 9.01

  ASP Isotopes ships first isotope samples, eyes $50-70M revenue, Renergen merger on track

  Shipped first samples of Ytterbium-176 and Silicon-28; expects $50-70M revenue from these in 2026-2027.

• August 25, 2025, 7:59 PM ET other material materiality 0.50 neutral item 7.01

  ASPI updates on isotope production; JSE listing set for Aug 27

  Silicon-28: commercial production began Mar 2025; first samples shipped to US customer in Aug 2025.

• August 15, 2025, 7:59 PM ET other material materiality 0.65 neutral item 8.01item 9.01

  ASPI and Quantum Leap Energy sign MOU with Fermi America for HALEU facility in Texas

  MOU with Fermi America (co-founded by Rick Perry) for JV to build HALEU enrichment facility at planned 11GW HyperGrid Campus near Amarillo, TX.

• August 8, 2025, 7:59 PM ET other material materiality 0.80 positive item 8.01item 9.01

  ASP Isotopes expects JSE dual listing Aug 27; Renergen acquisition on track for Q3 2025

  JSE dual listing expected to begin Aug 27, 2025; company retains Nasdaq primary listing.

• July 30, 2025, 7:59 PM ET M&A materiality 0.70 positive item 1.01item 7.01item 9.01

  ASP Isotopes invests $5M in IsoBio for Series Seed-1 Preferred Stock

  ASP Isotopes acquired 2M shares of IsoBio Series Seed-1 Preferred at $2.50/share for $5M total.

• July 28, 2025, 7:59 PM ET other material materiality 0.65 positive item 8.01item 9.01

  ASP Isotopes provides $5M seed funding to IsoBio for cancer radiotherapeutics

  IsoBio closed initial Series Seed round, raising $5 million from ASP Isotopes (ASPI).

• July 25, 2025, 7:59 PM ET M&A materiality 0.80 positive item 8.01item 9.01

  ASP Isotopes receives conditional South African approval for Renergen acquisition

  Competition Commission approved as of July 23, 2025, subject to conditions acceptable to the Company.

• July 24, 2025, 7:59 PM ET other material materiality 0.65 neutral item 1.01item 1.02item 8.01item 9.01

  ASP Isotopes prices $60M registered direct offering of 7.5M shares at $8.00/share

  Gross proceeds ~$60M; net ~$56.2M after underwriting discounts and expenses.

• July 17, 2025, 7:59 PM ET other material materiality 0.65 positive item 8.01item 9.01

  ASP Isotopes upgrades Silicon-28 capacity to >80 kg/yr; QLE spin-out targeted Oct 2025

  Silicon-28 capacity upgraded to >80 kg/yr (prior guidance >50 kg) with $4M investment; first shipments expected Aug 2025.

• July 11, 2025, 7:59 PM ET M&A materiality 0.75 positive item 8.01item 9.01

  ASP Isotopes acquisition of Renergen approved by 99.8% of Renergen shareholders

  Renergen shareholders voted 99.80% in favor of scheme of arrangement for acquisition by ASP Isotopes.

Executive changes

Materiality & sentiment trend

Max materiality 0.85 · Median 0.65 · Most common event other_material

25 positive 2 negative 23 neutral

source · ASPI on sec.gov