American Chemical Society takes 15.5% stake in Research Signals; Crimson Interactive takes 2.6%
Published
American Chemical Society has entered Research Signals Limited’s register, an online research-integrity platform, with that stake in ordinary shares.
Crimson Interactive Inc has also entered the register, holding the smaller stake in ordinary shares.
The wider filing records a rise in total shares and a smaller increase by Fullstopp GmbH. Filed on 23 September 2026, the changes cover 11 September 2025 to 11 September 2026.
Shareholder data
Source: Companies House confirmation statement (CS01) — period to , filed .
Changes in this confirmation statement
| Type | Shareholder | Shares | Change | Share classes |
|---|---|---|---|---|
| New shareholder | CRIMSON INTERACTIVE INC | 40,888 | — | ORDINARY 40,888 |
| Increased | FULLSTOPP GMBH | 16,133 | +61% | ORDINARY 16,133 |
Current shareholders (2)
| Shareholder | Total shares | Share classes |
|---|---|---|
| CRIMSON INTERACTIVE INC | 40,888 | ORDINARY 40,888 |
| FULLSTOPP GMBH | 16,133 | ORDINARY 16,133 |
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