CIGI SCHEDULE 13D/A: Activist campaign

Filed with the SEC on · accession 0001493152-26-044677

CIGI filed a SCHEDULE 13D/A (schedule 13d/a) with the SEC on Sep 28, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -0.6% by the first close after the filing.

Summary of the filing

The Spruce House Partnership LLC amended its Schedule 13D to disclose recent open market purchases of Colliers International Group Inc. common stock, acquiring 489,675 shares over three days at prices between $89.68 and $92.16 per share.

Key details

Open market purchase of 200,000 shares on 9/23/2026$18.3M
Open market purchase of 264,675 shares on 9/24/2026$24.4M
Open market purchase of 25,000 shares on 9/28/2026$2.2M
Reporting person / shareholderThe Spruce House Partnership LLC
IssuerColliers International Group Inc.

How CIGI stock reacted

Close before

$90.42

Sep 25, 2026

First close after

-0.56%

$89.91

5 trading days

-0.71%

$89.78

Since filing

+6.19%

$96.02

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Frequently asked questions

What did CIGI file with the SEC on Sep 28, 2026?

CIGI filed a SCHEDULE 13D/A (Activist campaign). The Spruce House Partnership LLC amended its Schedule 13D to disclose recent open market purchases of Colliers International Group Inc. common stock, acquiring 489,675 shares over three days at prices between $89.68 and $92.16 per share.

What does a activist campaign mean for CIGI stock?

A settlement removes uncertainty; the stock often reacts to whether the amount is bigger or smaller than investors expected.

How do I read a SCHEDULE 13D/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13D/A (schedule 13d/a): A report the company filed with the SEC (the US market regulator).

How did CIGI stock react to this filing?

CIGI closed at $90.42 before the filing and $89.91 on Sep 28, 2026 (-0.56%). Five trading days later: $89.78 (-0.71%).

Other CIGI SEC filings

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