Date Filing Description Download
Dec 20, 2022 DEFA14A Additional Proxy Soliciting Materials (definitive)
Dec 20, 2022 8-K Current report filing
Dec 20, 2022 DEFA14A Additional Proxy Soliciting Materials (definitive)
Dec 16, 2022 DEFA14A Additional Proxy Soliciting Materials (definitive)
Dec 14, 2022 EFFECT Effectiveness Order
Dec 12, 2022 SC 13G/A Amended Statement of Ownership
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

$1.63 -0.01
Volume 75,916
Previous Close 1.64
Intraday High 1.70
Intraday Low 1.59
Pricing delayed 20 minutes
Price Change % Change -0.61% 52 Week High 16.50 52 Week Low 1.25 Today's Open 1.63 Jun 02, 2023 04:00 PM

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