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Soleno Therapeutics Inc

SLNODelisted May 18, 2026
Industry
Pharmaceutical Preparations
SEC CIK
0001484565

Soleno Therapeutics Inc was delisted on May 18, 2026; its insiders filed their last Form 4 on May 18, 2026; 227 institutions reported holding it in 13F filings for Q1 2026, worth $2.09B in total; no superinvestor held it.

Holders of 5% or more of SLNO

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Soleno Therapeutics Inc, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of SLNO
HolderLatest formStakeChangeFirst filedLatest filingFiling
Wellington Management Group LLP13G/A8.60%4.43M shares+2.40 ppfrom 6.20%Feb 10, 20262 filingsMay 15, 2026SEC
BlackRock, Inc.13G/A6.90%3.54M shares+1.40 ppfrom 5.50%Feb 5, 20253 filingsApr 24, 2026SEC
Adage Capital Partners GP, L.L.C.13G/A6.44%2.78M shares–Feb 12, 20251 filingFeb 12, 2025SEC
State Street Corp13G5.20%2.68M sharesNewMay 12, 20261 filingMay 12, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

35 Schedule 13D and 13G filings on Soleno Therapeutics Inc, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on SLNO
Filed (ET)FilerFormStakeChangeEvent dateFiling
May 15, 202610:07 AM ETPrice T Rowe Associates Inc13G/A2.00%1.03M shares−4.90 ppfrom 6.90%Below 5%Mar 31, 2026SEC
May 15, 20268:18 AM ETAvoro Capital Advisors LLCand 1 other13G/A4.45%2.30M shares−0.95 ppfrom 5.40%Below 5%Mar 31, 2026SEC
May 15, 20267:06 AM ETWellington Management Group LLPand 3 others13G/A8.60%4.43M shares+2.40 ppfrom 6.20%Mar 31, 2026SEC
May 12, 202612:02 PM ETState Street Corp13G5.20%2.68M sharesNewMar 31, 2026SEC
May 7, 202611:29 AM ETJanus Henderson Group PLC13G/A2.30%1.21M shares−11.10 ppfrom 13.40%Below 5%Apr 30, 2026SEC
May 7, 202610:32 AM ETFMR LLCand 1 other13G/A0.40%193.0K shares−10.80 ppfrom 11.20%Below 5%Apr 30, 2026SEC
May 6, 202611:43 AM ETFMR LLCand 1 other13G/A11.20%5.77M shares−3.80 ppfrom 15.00%Mar 31, 2026SEC
Apr 24, 20264:11 PM ETBlackRock, Inc.13G/A6.90%3.54M shares+1.40 ppfrom 5.50%Mar 31, 2026SEC
Mar 27, 20261:16 PM ETVanguard Group Inc13G/A0.00%0 shares−5.28 ppfrom 5.28%Below 5%Mar 13, 2026SEC
Feb 17, 20264:33 PM ETJanus Henderson Group PLC13G/A13.40%7.18M shares+2.00 ppfrom 11.40%Dec 31, 2025SEC
Feb 17, 20269:01 AM ETAvoro Capital Advisors LLCand 1 other13G5.40%2.90M shares+1.30 ppfrom 4.10%Dec 31, 2025SEC
Feb 10, 202611:17 AM ETWellington Management Group LLPand 3 others13G6.20%3.32M sharesNewDec 31, 2025SEC
Nov 14, 20256:35 PM ETVivo Opportunity Fund Holdings, L.P.and 3 others13G/A4.20%2.25M shares−3.20 ppfrom 7.40%Below 5%Sep 30, 2025SEC
Nov 14, 202511:58 AM ETJanus Henderson Group PLC13G/A11.40%6.06M shares+0.90 ppfrom 10.50%Sep 30, 2025SEC
Nov 13, 20259:08 AM ETAdage Capital Management, L.P.and 2 others13G/A2.64%1.40M shares−4.46 ppfrom 7.10%Below 5%Sep 30, 2025SEC
Oct 31, 202511:31 AM ETVanguard Group Inc13G5.28%2.81M sharesNewSep 30, 2025SEC
Aug 14, 20254:35 PM ETNantahala Capital Management, LLCand 2 others13G/A1.99%1.00M shares−3.61 ppfrom 5.60%Below 5%Jun 30, 2025SEC
Aug 14, 20251:07 PM ETPrice T Rowe Associates Inc13G/A6.90%3.46M shares+1.70 ppfrom 5.20%Jun 30, 2025SEC
Aug 14, 202511:16 AM ETJanus Henderson Group PLC13G/A10.50%5.31M shares−0.70 ppfrom 11.20%Jun 30, 2025SEC
Aug 14, 20257:13 AM ETAvoro Capital Advisors LLCand 1 other13G/A4.10%2.05M shares–Below 5%Jun 30, 2025SEC
Aug 12, 20258:52 PM ETVivo Opportunity Fund Holdings, L.P.and 1 other13G/A7.40%3.96M shares−2.30 ppfrom 9.70%Jun 30, 2025SEC
Aug 12, 20259:05 AM ETAdage Capital Management, L.P.and 2 others13G/A7.10%3.58M shares−2.48 ppfrom 9.58%Jun 30, 2025SEC
Aug 7, 202510:17 AM ETFMR LLCand 1 other13G/A15.00%7.83M shares+8.40 ppfrom 6.60%Jul 31, 2025SEC
Aug 6, 202512:14 PM ETFMR LLCand 1 other13G6.60%3.34M sharesNewJun 30, 2025SEC
Jul 17, 20258:12 PM ETBlackRock, Inc.13G5.50%2.77M shares+0.80 ppfrom 4.70%Jun 30, 2025SEC
May 14, 202512:02 PM ETJanus Henderson Group PLC13G/A11.20%5.15M shares−0.80 ppfrom 12.00%Mar 31, 2025SEC
May 14, 202510:45 AM ETPrice T Rowe Associates Inc13G5.20%2.40M sharesNewMar 31, 2025SEC
May 12, 20259:06 AM ETAdage Capital Management, L.P.and 2 others13G/A9.58%4.39M shares–Mar 31, 2025SEC
Apr 30, 20255:15 PM ETNantahala Capital Management, LLCand 2 others13G/A5.60%2.63M shares−4.39 ppfrom 9.99%Mar 31, 2025SEC
Mar 31, 20258:00 PM ETVivo Opportunity Fund Holdings, L.P.and 1 other13G/A9.70%4.46M shares–Mar 31, 2025SEC
Feb 14, 20254:32 PM ETNantahala Capital Management, LLCand 2 others13G/A9.99%4.35M shares0.00 ppfrom 9.99%Dec 31, 2024SEC
Feb 14, 202511:56 AM ETJanus Henderson Group PLC13G/A12.00%5.19M shares–Dec 31, 2024SEC
Feb 12, 20259:34 AM ETAdage Capital Partners GP, L.L.C.and 3 others13G/A6.44%2.78M shares–Dec 31, 2024SEC
Feb 5, 20255:28 PM ETBlackRock, Inc.13G/A4.70%2.01M shares–Below 5%Dec 31, 2024SEC
Nov 14, 20244:53 PM ETNantahala Capital Management, LLCand 2 others13G/A9.99%3.95M shares–Sep 30, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Soleno Therapeutics Inc shares.

No Form 144 notices for Soleno Therapeutics Inc are on file.