Vault-13

CNS PHARMACEUTICALS INC CNSP

COM · Common Stock · CUSIP 18978H508

11 institutional holders +0 vs Q1 2026
280,434280.4k shares reported held*
19.2% of all shares outstanding*
$1.3mreported value*
4 new 2 added 2 reduced 4 sold out net bought ≈ $644.5k (+134.8k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 1.5m as of 2026-08-11, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.78.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

051015Q2 25: 1Q3 25: 8Q4 25: 9Q1 26: 11Q2 26: 1111Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q2 20251
Q3 20258
Q4 20259
Q1 202611
Q2 202611

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
10010Q3 25: 8 bought or addedQ3 25: 1 cut or sold outQ3 25Q4 25: 4 bought or addedQ4 25: 3 cut or sold outQ4 25Q1 26: 6 bought or addedQ1 26: 2 cut or sold outQ1 26Q2 26: 6 bought or addedQ2 26: 6 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 202581
Q4 202543
Q1 202662
Q2 202666

Biggest buyers

Ikarian Capital, LLC Added +90,000+90.0k
ADAR1 Capital Management, LLC New +70,000+70.0k
VANGUARD FIDUCIARY TRUST CO New +10,226+10.2k
VANGUARD CAPITAL MANAGEMENT LLC New +6,993+7.0k
UBS Group AG Added +732+732
BARCLAYS PLC New +19+19

Biggest sellers

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Ikarian Capital, LLC 13G · institution +4.2 pts · filed 2026-08-14 9.9% +4.2 pts 147.3k≈ $704.0k 2026-08-14
Stonepine Capital Management, LLC 13G · passive investor +2.0 pts · filed 2026-05-15 9.9% +2.0 pts 159.8k≈ $760.7k 2026-05-15

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 2 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—0——
Q2 20262$44.0k0——
Q3 20260—0——
DateInsiderTradeSharesPrice ValueTheir holding
2026-05-18 Charles Faith L. Director Bought 7,100 $4.79 $34.0k7.1k shares new
2026-05-18 Fisher Michal Director Bought 2,000 $5.00 $10.0k2.0k shares new

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Ikarian Capital, LLC 0.11% of their portfolio DALLAS, TX 135,830135.8k $649.3k $649.3k 0.11% Added +90.0k +90,000
2 ADAR1 Capital Management, LLC 0.02% of their portfolio AUSTIN, TX 70,00070.0k $334.6k $334.6k 0.02% New
3 Stonepine Capital Management, LLC 0.15% of their portfolio Bend, OR 41,57341.6k $198.7k $198.7k 0.15% Reduced -19.4k -19,427
4 BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 13,52413.5k $64.6k $64.6k 0.00% Unchanged
5 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 10,22610.2k $48.9k $48.9k 0.00% New
6 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 6,9937.0k $33.4k $33.4k 0.00% New
7 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,4611.5k $7.0k $7.0k 0.00% Added +732 +732
8 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 799799 $3.8k $3.8k 0.00% Reduced -511 -511
9 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1919 $91 $91 0.00% New
10 BARRETT & COMPANY, INC. 0.00% of their portfolio PROVIDENCE, RI 88 $38 $38 0.00% Unchanged
11 DANSKE BANK A/S 0.00% of their portfolio COPENHAGEN V, G7 11 $5 $5 0.00% Unchanged