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Aon Plc SEC Filings

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Welcome to our dedicated page for Aon Plc SEC filings (Ticker: AON), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.

Aon plc’s filings aren’t just compliance documents—they map how this global insurance brokerage and human capital adviser turns premiums, data and advisory fees into steady cash flow. Each quarter, investors scrutinize its commission trends, reinsurance placement volumes and pension obligations buried deep inside hundreds of pages. If you have ever searched for “Aon annual report 10-K simplified� or wondered how shifting premium rates affect segment margins, you are in the right place.

Stock Titan pairs real-time EDGAR feeds with AI to make understanding Aon SEC documents with AI effortless. Receive instant alerts on Aon Form 4 insider transactions real-time, dive into an Aon quarterly earnings report 10-Q filing the moment it drops, or see an Aon 8-K material events explained summary within minutes. Our platform delivers:

  • AI-powered plain-English summaries that turn actuarial jargon into clear insights
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  • Segment-level KPIs pulled from 10-K and proxy tables
  • One-click access to every Aon insider trading Form 4 transactions disclosure

Use these tools to monitor �Aon executive stock transactions Form 4,� benchmark renewal season performance, or pinpoint changes in �Aon proxy statement executive compensation.� Whether you want pension discount-rate details, goodwill impairment tests, or a snapshot of global headcount, our AI highlights the exact paragraph so you can act faster—without wading through PDFs. Complex filings are clarified, key numbers surface immediately, and every document—from the first S-8 to the latest 8-K—is only a click away. Aon SEC filings explained simply starts here.

Filing
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Mercantile Bank Corporation (MBWM) filed 8-K/A Amendment No. 1 chiefly to mark the filing as Rule 425 communication; the substantive disclosure is unchanged from the original 8-K dated 22 Jul 2025.

Merger overview

  • MBWM will acquire Eastern Michigan Financial Corporation (EFIN) via merger into a wholly-owned acquisition subsidiary.
  • Consideration per EFIN share: $32.32 cash + 0.7116 MBWM shares, implying aggregate value of ~$95.8 million.
  • Boards of both companies have approved the deal; closing targeted for Q4 2025 subject to EFIN shareholder vote and regulatory approvals.
  • Post-close MBWM will operate as a two-bank holding company until planned consolidation of Eastern Michigan Bank into Mercantile Bank in Q1 2027.
  • Termination provisions include failure to close by 30 Jun 2026 or acceptance of a superior proposal; EFIN would owe MBWM a $3.68 million break-up fee.
  • Governance: one former non-employee EFIN director will join MBWM and Mercantile Bank boards; remaining EFIN directors to join a regional advisory board.

Other items: Item 2.02 furnishes MBWM’s Q2 2025 earnings press release; Item 7.01 furnishes investor presentations (Exhibits 99.1, 99.3, 99.4). No financial figures are contained within this amendment.

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DiaMedica Therapeutics Inc. (DMAC) filed a Form 4 indicating that 10% owner Richard Jacinto II bought 400,000 voting common shares on 07/23/2025 at $3.50 per share. The filing was submitted on 07/25/2025.

The transaction, coded “P,� was executed indirectly through his NFS/FMTC Roth IRA. Following the purchase, the account holds 4,958,823 DMAC shares. Table II shows no derivative securities activity.

The report was filed by a single reporting person who remains subject to Section 16 obligations and lists indirect ownership of the acquired shares.

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Allegion plc (ALLE) â€� Form 144 filing

An insider has notified the SEC of a planned sale of up to 10,776 ordinary shares through UBS Financial Services, with sales eligible to begin on 25 Jul 2025. The stock originates from recent equity compensation events: 1,060 shares from PSU vesting, 319 shares from RSU vesting and 9,397 shares from option exercise. At the filing’s reference price, the aggregate market value is $1.76 million.

With 85.85 million shares outstanding, the proposed transaction represents roughly 0.013 % of Allegion’s float, suggesting minimal impact on liquidity or control. The filer reports no other sales in the past three months and attests to having no undisclosed material information.

Form 144 is a notice only; actual execution is subject to Rule 144 volume, manner-of-sale and timing constraints, and the filer may sell fewer shares or cancel the plan entirely.

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On 24 Jul 2025 AEye, Inc. (Nasdaq: LIDR) filed Amendment No. 3 to its 424(b)(5) prospectus supplements for its Form S-3 at-the-market (ATM) equity program with A.G.P./Alliance Global Partners. The amendment raises the maximum aggregate offering price that may be sold under the Sales Agreement from $2.6 million to $23.728 million, equal to one-third of the company’s $71.2 million public float, as permitted by General Instruction I.B.6.

AEye has already issued $14.993 million of securities under this rule in the last 12-month period; combined future sales cannot surpass the updated $23.728 million cap unless a further supplement is filed. Key metrics disclosed: 25.42 million shares outstanding, of which 24.38 million are held by non-affiliates; last reported share price $2.92. The company continues to qualify as an “emerging growth� and “smaller reporting� company, benefiting from reduced reporting requirements. Investors are directed to previously disclosed risk factors for additional considerations.

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Alight, Inc. (ALIT) filed a Form 4 disclosing that director Michael E. Hayes received 33,783 Class A common shares in the form of restricted stock units (RSUs) on July 2, 2025. The RSUs were granted under the company’s 2021 Omnibus Share Plan as annual board compensation, carry a cost basis of $0, and are scheduled to vest on July 2, 2026. After the award, Hayesâ€� direct ownership totals 44,724 shares/units. No sales, dispositions, or derivative-security transactions were reported.

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Soluna Holdings, Inc. (Nasdaq: SLNH / SLNHP) filed a Form 8-K under Item 8.01 (Other Events). The Board of Directors set August 18, 2025 as the date of the Company’s 2025 Annual Meeting of Stockholders and designated June 30, 2025 as the record date for determining shareholders entitled to notice of, and to vote at, the meeting. Because the new meeting date is more than 30 days later than last year’s meeting, the Company has reset the Rule 14a-8 deadline for shareholder proposals: submissions must be received by the Corporate Secretary no later than July 15, 2025 to be eligible for inclusion in the proxy statement. Proposals must also satisfy Nevada law, SEC regulations, and the Company’s Bylaws. The specific time and location of the meeting will be disclosed in the forthcoming proxy statement.

No financial results, transactions, or strategic changes were disclosed; the filing is limited to scheduling and procedural matters.

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SEC Form 4 snapshot â€� Aon plc (AON)

Chief Financial Officer Edmund Reese reported RSU-related share activity dated 07/01/2025:

  • 3,975 Class A ordinary shares were issued upon vesting of a 2024 restricted share unit (RSU) award (transaction code M).
  • 2,198.114 shares were simultaneously withheld by the company to satisfy tax obligations at an average price of $356.93 (transaction code F).
  • Post-transaction, Reese directly owns 1,776.886 shares and retains 7,950 unvested RSUs that will vest in equal thirds through 07/01/2027.

No open-market purchases or discretionary sales occurred; the filing represents a routine administrative conversion under the Aon plc 2011 Incentive Compensation Plan. Because the net share change is modest and entirely compensation-driven, the event is viewed as neutral from a market-impact perspective and does not alter Aon’s financial outlook or capital structure.

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Form 4 filing summary for Aon plc (AON)

Non-employee director James G. Stavridis reported two related transactions dated 26 Jun 2025:

  • Grant (Code A): 637 Class A ordinary shares were issued as part of the board’s annual equity award. In line with Irish law, the director paid the nominal US$0.01 per share.
  • Tax withholding (Code F): 152.876 shares were automatically surrendered at US$353.55 per share to cover withholding obligations.

After these events, the director’s direct holding totals 787.654 shares. He also reports 1,043 shares held by a personal trust and 3,808 shares held by a family trust, bringing his aggregate beneficial ownership to roughly 5,639 shares.

The transactions are routine and do not represent an open-market purchase or sale; thus they carry limited signalling value for investors.

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Form 4 overview � Deutsche Telekom AG & affiliates sell 0.03% of their T-Mobile US (TMUS) stake

On 26-30 June 2025, Deutsche Telekom AG (DT) and four wholly-owned subsidiaries, all classified as 10% owners and directors-by-deputization of T-Mobile US, filed a Form 4 detailing open-market sales executed under a Rule 10b5-1 trading plan adopted 13 March 2025. A total of 209,520 TMUS common shares were sold across three trading days at weighted-average prices between $229.01 and $238.33.

  • Daily volumes: 69,840 shares on 26 Jun; 69,840 shares on 27 Jun; 69,840 shares on 30 Jun.
  • Total estimated proceeds: â‰� $49 million based on the individual weighted-average prices disclosed in the footnotes.
  • Post-sale ownership: 647,940,204 common shares remain, versus 648,149,724 before the first sale—an ownership reduction of roughly 0.03 percentage points.

No derivative securities were reported. DT expressly disclaims beneficial ownership except to the extent of its pecuniary interest and notes its continued board representation. The filing is routine for a controlling shareholder gradually monetising a small fraction of its position while maintaining an overwhelming 51%+ stake.

Investor take-away: The sale is modest relative to DT’s holding and appears pre-scheduled, limiting negative signalling. However, continuing periodic divestitures could contribute to a medium-term supply overhang for TMUS shares.

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Form 4 filing overview � Aon plc (AON)

Director Jose Antonio Alvarez reported two equity transactions dated 26 June 2025 involving the company’s Class A ordinary shares.

  • Equity award: 637 shares were acquired under Aon’s annual non-employee director grant (Transaction Code A). Footnote 1 states the director paid the issuer the nominal value of US $0.01 per share in accordance with Irish law.
  • Tax withholding: 305.752 shares were withheld by the issuer to satisfy tax obligations related to the same award (Transaction Code F) at a stated price of $353.55 per share (Footnote 2).

Following these transactions, Alvarez’s direct beneficial ownership changed from 1,172.612 to 866.86 Class A shares.

The filing reflects routine director compensation and associated tax withholding; no open-market purchases or sales were disclosed.

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FAQ

What is the current stock price of Aon Plc (AON)?

The current stock price of Aon Plc (AON) is $355.34 as of July 30, 2025.

What is the market cap of Aon Plc (AON)?

The market cap of Aon Plc (AON) is approximately 79.6B.

What core services does Aon plc offer?

Aon provides risk management, retirement, and health solutions, including insurance and reinsurance brokerage, risk analytics, and human capital consulting.

How does Aon utilize data and analytics in its operations?

Aon employs proprietary data models and advanced digital tools to forecast risks, visualize exposures, and support strategic decision-making for its clients.

Which industries and sectors does Aon serve?

Aon serves a wide array of sectors, including property and casualty insurance, corporate risk management, and human resources, catering to organizations globally.

What sets Aon apart from its competitors?

Aon's integration of cutting-edge analytics with deep industry expertise allows it to deliver tailored solutions that address both traditional and emerging risk challenges.

How does Aon support human capital and HR decision-making?

Through services such as compensation benchmarking, talent analytics, and workforce planning, Aon helps clients design competitive benefits packages and optimize HR strategies.

What is the scope of Aon’s global operations?

Aon operates in a multitude of countries, leveraging local market insights and a comprehensive global network to serve a diverse client base worldwide.

Can you provide examples of Aon’s risk analytics tools?

Aon has developed digital applications that offer real-time loss forecasting, detailed risk exposure visualization, and scenario analysis to enhance insurance program effectiveness.

How does Aon maintain its industry authority and trustworthiness?

By combining extensive global experience, technological innovation, and a balanced focus on risk and human capital solutions, Aon consistently delivers reliable, actionable insights.
Aon Plc

NYSE:AON

AON Rankings

AON Stock Data

79.60B
209.24M
3.07%
89.19%
2.56%
Insurance Brokers
Insurance Agents, Brokers & Service
Ireland
DUBLIN 2