http://www.streetinsider.com Latest StreetInsider.com News Articles en-us Copyright 2026, StreetInsider.com rss@streetinsider.com (SI RSS) rss@streetinsider.com (SI RSS) Mon, 31 Aug 2026 15:00:00 -0400 http://blogs.law.harvard.edu/tech/rss http://www.streetinsider.com/images/rss_logo.gif http://www.streetinsider.com 143 28 0 1 2 3 21 22 23 Saturday Sunday http://www.streetinsider.com/Press+Releases/Tenable+Joins+White+House-Led+Project+Watershed+to+Bolster+U.S.+Water+Systems+Cybersecurity/27004988.html <p><strong>Government and industry unite to address vulnerabilities amid growing cyber threats</strong></p><p>COLUMBIA, Md., Aug. 31, 2026 (GLOBE NEWSWIRE) -- Tenable^® Holdings, Inc. (NASDAQ: TENB), the <a href="https://www.globenewswire.com/Tracker?data=-jEST4LZcZZjLnRbuqhyHma4gKg9dfE29smXAY9C3qCtyD_LWI0-rKqw90cPJPt4wcoi9w_30qnh58O0GuAEGsApIQWDRqcayTTABSeUiZI=" rel="nofollow" target="_blank"><u>exposure management company</u></a>, today announced that it has joined Project Watershed, a White House-led initiative focused on protecting U.S. water and wastewater systems from cyber threats. Tenable brings expertise in helping organizations unify visibility, including across IT and OT security domains, prioritize risk and automate remediation to keep pace with evolving threats related to cyber exposures in the agentic AI era.</p> <p>Led by the Office of the National Cyber Director http://www.streetinsider.com/Press+Releases/Tenable+Joins+White+House-Led+Project+Watershed+to+Bolster+U.S.+Water+Systems+Cybersecurity/27004988.html Mon, 31 Aug 2026 15:00:00 -0400 TENB http://www.streetinsider.com/Globe+Newswire/Tenable+Joins+White+House-Led+Project+Watershed+to+Bolster+U.S.+Water+Systems+Cybersecurity/27004988.html <p><strong>Government and industry unite to address vulnerabilities amid growing cyber threats</strong></p><p>COLUMBIA, Md., Aug. 31, 2026 (GLOBE NEWSWIRE) -- Tenable^® Holdings, Inc. (NASDAQ: TENB), the <a href="https://www.globenewswire.com/Tracker?data=-jEST4LZcZZjLnRbuqhyHma4gKg9dfE29smXAY9C3qCtyD_LWI0-rKqw90cPJPt4wcoi9w_30qnh58O0GuAEGsApIQWDRqcayTTABSeUiZI=" rel="nofollow" target="_blank"><u>exposure management company</u></a>, today announced that it has joined Project Watershed, a White House-led initiative focused on protecting U.S. water and wastewater systems from cyber threats. Tenable brings expertise in helping organizations unify visibility, including across IT and OT security domains, prioritize risk and automate remediation to keep pace with evolving threats related to cyber exposures in the agentic AI era.</p> <p>Led by the Office of the National Cyber Director http://www.streetinsider.com/Globe+Newswire/Tenable+Joins+White+House-Led+Project+Watershed+to+Bolster+U.S.+Water+Systems+Cybersecurity/27004988.html Mon, 31 Aug 2026 15:00:00 -0400 TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/Press+Releases/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html <div class="xn-content"> <p><span class="legendSpanClass"><location value="LU/us.ny.nyc" idsrc="xmltag.org" >NEW YORK</location></span>, <span class="legendSpanClass"><chron>Aug. 26, 2026</chron></span> /PRNewswire/ -- <span value="NASDAQ-NMS:TENB" idsrc="xmltag.org" >Tenable Holdings Inc.</span> (<span>NASD</span>: TENB) will replace <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt Inc.</span> (NYSE: LEG) in the S&amp;P SmallCap 600 effective prior to the opening of trading on <chron>Monday, August 31</chron>. S&amp;P MidCap 400 constituent <span value="NYSE:SGI" idsrc="xmltag.org" >Somnigroup International Inc.</span> (NYSE: SGI) is acquiring <span value="NYSE:LEG" idsrc="xmltag.org" >Leggett &amp; Platt</span> in a deal expected to be completed soon, pending final closing conditions.</p> <p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:</p><div><table http://www.streetinsider.com/PRNewswire/Tenable+Holdings+Set+to+Join+S%26amp%3BP+SmallCap+600/26983105.html Wed, 26 Aug 2026 18:20:00 -0400 LEG O.00004559 O.00871427 O.03712323 O.38540426 SGI SPGI TENB http://www.streetinsider.com/Index+Changes/Tenable+Holdings%2C+Inc.+%28TENB%29+to+Join+S%26P+SmallCap+600/26982826.html (Updated - August 26, 2026 5:17 PM EDT) <p>Tenable Holdings Inc. (NASDAQ: TENB) will replace Leggett & Platt Inc. (NYSE: LEG) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, August 31. S&P MidCap 400 constituent Somnigroup International Inc. (NYSE: SGI) is acquiring Leggett & Platt in a deal expected to be completed soon, pending final closing conditions.</p> http://www.streetinsider.com/Index+Changes/Tenable+Holdings%2C+Inc.+%28TENB%29+to+Join+S%26P+SmallCap+600/26982826.html Wed, 26 Aug 2026 17:17:05 -0400 LEG SGI TENB http://www.streetinsider.com/Index+Changes/Tenable+Holdings%2C+Inc.+%28TENB%29+to+Join+S%26P+SmallCap+600/26982826.html (Updated - August 26, 2026 5:17 PM EDT) <p>Tenable Holdings Inc. (NASDAQ: TENB) will replace Leggett & Platt Inc. (NYSE: LEG) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, August 31. S&P MidCap 400 constituent Somnigroup International Inc. (NYSE: SGI) is acquiring Leggett & Platt in a deal expected to be completed soon, pending final closing conditions.</p> http://www.streetinsider.com/Index+Changes/Tenable+Holdings%2C+Inc.+%28TENB%29+to+Join+S%26P+SmallCap+600/26982826.html Wed, 26 Aug 2026 17:17:05 -0400 LEG SGI TENB http://www.streetinsider.com/Index+Changes/Tenable+Holdings%2C+Inc.+%28TENB%29+to+Join+S%26P+SmallCap+600/26982826.html (Updated - August 26, 2026 5:17 PM EDT) <p>Tenable Holdings Inc. (NASDAQ: TENB) will replace Leggett & Platt Inc. (NYSE: LEG) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, August 31. S&P MidCap 400 constituent Somnigroup International Inc. (NYSE: SGI) is acquiring Leggett & Platt in a deal expected to be completed soon, pending final closing conditions.</p> http://www.streetinsider.com/Index+Changes/Tenable+Holdings%2C+Inc.+%28TENB%29+to+Join+S%26P+SmallCap+600/26982826.html Wed, 26 Aug 2026 17:17:05 -0400 LEG SGI TENB http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html <p class="bwalignc"><i>New joint research from SentinelOne and Tenable finds that exposure data and runtime detection converge on the same vendor surfaces even as the specific vulnerabilities change</i></p> <p> MOUNTAIN VIEW, Calif. &amp; COLUMBIA, Md.--(BUSINESS WIRE)-- <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.sentinelone.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=SentinelOne%C2%AE&amp;index=1&amp;md5=21acb71efd33c3c6832d3fe253e4c905" shape="rect">SentinelOne®</a> (NYSE: S), the AI security leader, and Tenable® Holdings, Inc. (NASDAQ: TENB), the <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.tenable.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=exposure+management+company&amp;index=2&amp;md5=15cfd08b1294f07cfbe9a8026c3ea36a" shape="rect">exposure management company</a>, today released joint research that suggests a growing disconnect between vulnerability discovery, disclosure and actual exploitation. The research draws on Tenable's exposure data across thousands of organizations and remediation telemetry with SentinelOne's endpoint and post-exploitation detection data. Together, http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html Wed, 26 Aug 2026 09:00:00 -0400 O.17261255 O.38540426 S TENB http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html <p class="bwalignc"><i>New joint research from SentinelOne and Tenable finds that exposure data and runtime detection converge on the same vendor surfaces even as the specific vulnerabilities change</i></p> <p> MOUNTAIN VIEW, Calif. &amp; COLUMBIA, Md.--(BUSINESS WIRE)-- <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.sentinelone.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=SentinelOne%C2%AE&amp;index=1&amp;md5=21acb71efd33c3c6832d3fe253e4c905" shape="rect">SentinelOne®</a> (NYSE: S), the AI security leader, and Tenable® Holdings, Inc. (NASDAQ: TENB), the <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.tenable.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=exposure+management+company&amp;index=2&amp;md5=15cfd08b1294f07cfbe9a8026c3ea36a" shape="rect">exposure management company</a>, today released joint research that suggests a growing disconnect between vulnerability discovery, disclosure and actual exploitation. The research draws on Tenable's exposure data across thousands of organizations and remediation telemetry with SentinelOne's endpoint and post-exploitation detection data. Together, http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html Wed, 26 Aug 2026 09:00:00 -0400 O.17261255 O.38540426 S TENB http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html <p class="bwalignc"><i>New joint research from SentinelOne and Tenable finds that exposure data and runtime detection converge on the same vendor surfaces even as the specific vulnerabilities change</i></p> <p> MOUNTAIN VIEW, Calif. &amp; COLUMBIA, Md.--(BUSINESS WIRE)-- <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.sentinelone.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=SentinelOne%C2%AE&amp;index=1&amp;md5=21acb71efd33c3c6832d3fe253e4c905" shape="rect">SentinelOne®</a> (NYSE: S), the AI security leader, and Tenable® Holdings, Inc. (NASDAQ: TENB), the <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.tenable.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=exposure+management+company&amp;index=2&amp;md5=15cfd08b1294f07cfbe9a8026c3ea36a" shape="rect">exposure management company</a>, today released joint research that suggests a growing disconnect between vulnerability discovery, disclosure and actual exploitation. The research draws on Tenable's exposure data across thousands of organizations and remediation telemetry with SentinelOne's endpoint and post-exploitation detection data. Together, http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html Wed, 26 Aug 2026 09:00:00 -0400 O.17261255 O.38540426 S TENB http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html <p class="bwalignc"><i>New joint research from SentinelOne and Tenable finds that exposure data and runtime detection converge on the same vendor surfaces even as the specific vulnerabilities change</i></p> <p> MOUNTAIN VIEW, Calif. &amp; COLUMBIA, Md.--(BUSINESS WIRE)-- <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.sentinelone.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=SentinelOne%C2%AE&amp;index=1&amp;md5=21acb71efd33c3c6832d3fe253e4c905" shape="rect">SentinelOne®</a> (NYSE: S), the AI security leader, and Tenable® Holdings, Inc. (NASDAQ: TENB), the <a target="_blank" rel="nofollow" href="https://cts.businesswire.com/ct/CT?id=smartlink&amp;url=https%3A%2F%2Fwww.tenable.com%2F&amp;esheet=54594835&amp;newsitemid=20260826154664&amp;lan=en-US&amp;anchor=exposure+management+company&amp;index=2&amp;md5=15cfd08b1294f07cfbe9a8026c3ea36a" shape="rect">exposure management company</a>, today released joint research that suggests a growing disconnect between vulnerability discovery, disclosure and actual exploitation. The research draws on Tenable's exposure data across thousands of organizations and remediation telemetry with SentinelOne's endpoint and post-exploitation detection data. Together, http://www.streetinsider.com/Press+Releases/SentinelOne+and+Tenable+Find+Cyber+Attackers+Routinely+Target+Edge-Device+Vendor+Ecosystems+Rather+Than+Individual+Vulnerabilities/26978069.html Wed, 26 Aug 2026 09:00:00 -0400 O.17261255 O.38540426 S TENB