Date Filing Description Download
Dec 06, 2022 S-3 Securities Registration Statement (simplified form)
Nov 29, 2022 DEF 14A Proxy Statement (definitive)
Nov 17, 2022 PRE 14A Proxy Statement - Notice of Shareholders Meeting (preliminary)
Nov 15, 2022 SC 13D Statement of Beneficial Ownership
Nov 14, 2022 4 Statement of Changes in Beneficial Ownership
Nov 14, 2022 4 Statement of Changes in Beneficial Ownership
Nov 14, 2022 10-Q Quarterly Report
Nov 10, 2022 8-K Current report filing
Oct 27, 2022 8-K Current report filing
Oct 24, 2022 424B5 Prospectus filed pursuant to Rule 424(b)(5)
Oct 20, 2022 8-K Current report filing
Oct 18, 2022 424B5 Prospectus filed pursuant to Rule 424(b)(5)
Oct 17, 2022 424B3 Prospectus filed pursuant to Rule 424(b)(3)
Oct 12, 2022 8-K Current report filing
Oct 11, 2022 8-K Current report filing
Oct 05, 2022 8-K Current report filing
Aug 11, 2022 10-Q Quarterly Report
Aug 11, 2022 8-K Current report filing
Aug 04, 2022 4 Statement of Changes in Beneficial Ownership
Jul 08, 2022 SC 13G Statement of Ownership
Jun 15, 2022 8-K Current report filing
Jun 14, 2022 8-K Current report filing
Jun 13, 2022 4 Statement of Changes in Beneficial Ownership
Jun 13, 2022 4 Statement of Changes in Beneficial Ownership
Jun 13, 2022 4 Statement of Changes in Beneficial Ownership
Jun 13, 2022 4 Statement of Changes in Beneficial Ownership
Jun 13, 2022 4 Statement of Changes in Beneficial Ownership
Jun 13, 2022 4 Statement of Changes in Beneficial Ownership
May 27, 2022 EFFECT Effectiveness Order
May 26, 2022 4 Statement of Changes in Beneficial Ownership
May 12, 2022 S-3 Securities Registration Statement (simplified form)
May 12, 2022 10-Q Quarterly Report
May 12, 2022 8-K Current report filing
May 05, 2022 4 Statement of Changes in Beneficial Ownership
May 04, 2022 SC 13D/A Amended Statement of Beneficial Ownership
Apr 29, 2022 DEF 14A Proxy Statement (definitive)
Apr 29, 2022 DEFA14A Additional Proxy Soliciting Materials (definitive)
Apr 06, 2022 4 Statement of Changes in Beneficial Ownership
Apr 06, 2022 4 Statement of Changes in Beneficial Ownership
Apr 01, 2022 S-8 Securities Registration: Employee Benefit Plan
Mar 31, 2022 10-K Annual Report
Mar 25, 2022 8-K Current report filing
Mar 23, 2022 8-K Current report filing
Mar 18, 2022 4 Statement of Changes in Beneficial Ownership
Mar 18, 2022 4 Statement of Changes in Beneficial Ownership
Mar 18, 2022 4 Statement of Changes in Beneficial Ownership
Feb 11, 2022 SC 13G Statement of Ownership
Feb 11, 2022 SC 13G Statement of Ownership
Feb 10, 2022 SC 13G/A Amended Statement of Ownership
Feb 07, 2022 4 Statement of Changes in Beneficial Ownership
Feb 03, 2022 SC 13G/A Amended Statement of Ownership
Jan 14, 2022 4 Statement of Changes in Beneficial Ownership
Jan 10, 2022 4 Statement of Changes in Beneficial Ownership
Jan 10, 2022 8-K Current report filing
Jan 05, 2022 8-K Current report filing

Nasdaq: SIEN

Stock Quote: NASD

$0.26 +0.01
Volume 248,584
Previous Close 0.25
Intraday High 0.27
Intraday Low 0.24
Pricing delayed 20 minutes
Price Change % Change +2.44% 52 Week High 4.43 52 Week Low 0.16 Today's Open 0.27 Dec 07, 2022 12:05 PM

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