How many institutions own CYCN stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own CYCN shares is 19, representing 11.44% of the company's common stock.

Who are the major shareholders selling Cyclerion Therapeutics, Inc. stock?

FMR LLC, in the last quarter, reduced its stake in CYCN by -0.13% restricting it's holding to 4.74 thousand shares of worth nearly $6.02K. BARCLAYS PLC also lessened -100% of the CYCN shares from its portfolio, reducing its holding to 0 shares of worth -. SIREN, L.L.C. also shunned CYCN shares holding by -0.48% last quarter which brought its holding to 115.6 thousand shares worth $146.82K.

Investors who are buying CYCN stock?

As per its latest 13F filing, XTX TOPCO LTD increased its stake in CYCN by 100% in the last quarter. The institutional holder raised its holding to 10.03 thousand shares having worth more than $12.73K. TOWER RESEARCH CAPITAL LLC (TRC) also added 35.48% more shares of CYCN to its portfolio, raising its holding to 3.15 thousand shares of worth $4.01K. CITIGROUP INC also increased its CYCN shares holding by 100% which brought its holding to 8.2 thousand shares worth $10.42K.

CYCN's major insiders: who are they?

The insider with the most stakes in CYCN is Hecht Peter M , Chief Executive Officer at the company. Additionally, CYCN stock is highly held by Chief Innovation Officer Busch Andreas and President and CSO Currie Mark G among others.

Did an insider recently sell CYCN stock?

Company executives, directors, and other insiders own 31.48% percent of Cyclerion Therapeutics, Inc.'s stock. Within the last six months, there have been 0 transaction(s) in which CYCN insiders have sold stock, totaling 0 shares. Insiders that have sold shares include SLATE PATH CAPITAL LP, MCGUIRE TERRANCE, and GJINO ANJEZA.

Which insider recently purchased CYCN stock?

There have been 0 transaction(s) during the past 6-months in which Cyclerion Therapeutics, Inc. insiders have bought stock, totalling 0 shares

How much of CYCN does insiders own?

Around 0 Cyclerion Therapeutics, Inc. shares are held by insiders, which represents about 31.48% of CYCN stock.

Who is the insider with the largest stake?

CYCN Chief Executive Officer, Hecht Peter M holds the largest portfolio of the company's shares. CYCN shares owned by Hecht total nearly 2.05 million.

Which institution holds the most shares in CYCN?

FMR LLC is the largest institutional owner in CYCN which holds 4.74 thousand shares worth $6.02K or 0.15% of the total CYCN shares outstanding followed by XTX TOPCO LTD with ownership of 10.03 thousand shares representing 0.31% of the CYCN ownership. BARCLAYS PLC is the third largest stakeholder with 0 shares or 0% of the ownership worth more than -.

Is Cyclerion Therapeutics, Inc. stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the CYCN is concerned, it is a stock which is not optionable.

Is there a short position on CYCN's shares?

Number of CYCN shares short is 42.74K. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding CYCN shares are there?

As of today, 3.20M shares of CYCN are outstanding.

Is there many float in CYCN stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, CYCN has 2.47M shares in float.

CYCN short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for CYCN is 1.33.

Cyclerion Therapeutics (CYCN) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableNo

Short Percent Of Outstanding Shares1.33

Short Percent Of Float1.66

Shares Outstanding3.20M

Shares Float2.47M

Shares Short42.74K

Short Ratio1.33

1.66%

Short % of Float

1.33%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

31.48% Percentage of Shares held by All Insiders

11.44% Percentage of Shares held by All Institutions

16.69% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 11.44% of CYCN shares are held by financial institutions. FMR LLC is the top corporate investor, holding 4.74K shares valued at $6.02K. A 0.15% stake in Cyclerion Therapeutics, Inc. is owned by the company. XTX TOPCO LTD owns 10.03K shares valued at $12.73K, which translates its holding of 0.31% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Dec 31, 2025	FMR LLC	0.15%	4.74K	6.02K	-6	-0.13%
Dec 31, 2025	XTX TOPCO LTD	0.31%	10.03K	12.73K	10.03K	+100.00%
Dec 31, 2025	BARCLAYS PLC	0%	0	-	-5	-100.00%
Dec 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.1%	3.15K	4.01K	826	+35.48%
Dec 31, 2025	CITIGROUP INC	0.25%	8.2K	10.42K	8.2K	+100.00%
Dec 31, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	5	6	0	0
Dec 31, 2025		0%	72	91	72	+100.00%
Dec 31, 2025	ACTIVEST WEALTH MANAGEMENT	0%	100	127	0	0
Dec 31, 2025	BANK OF AMERICA CORP /DE/	0%	107	136	85	+386.36%
Dec 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	130	165	0	0
Dec 31, 2025	GROUP ONE TRADING, L.P.	0.01%	192	244	0	0
Dec 31, 2025	UBS GROUP AG	0.01%	376	478	327	+667.35%
Dec 31, 2025	BLACKROCK, INC.	0.52%	16.8K	21.33K	0	0
Dec 31, 2025	VANGUARD GROUP INC	0.73%	23.49K	29.83K	0	0
Dec 31, 2025	TWO SIGMA ADVISERS, LP	0.88%	28.3K	35.94K	28.3K	+100.00%
Dec 31, 2025	TWO SIGMA INVESTMENTS, LP	1.29%	41.56K	52.78K	28.26K	+212.61%
Dec 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.34%	43.3K	55.01K	6.14K	+16.53%
Dec 31, 2025	SIREN, L.L.C.	3.58%	115.6K	146.82K	-552	-0.48%
Dec 31, 2025	MAI CAPITAL MANAGEMENT	0%	100	127	0	0
Dec 31, 2025	DRW SECURITIES, LLC	0%	0	-	-43.62K	-100.00%
Dec 31, 2025	MORGAN STANLEY	0%	1	2	-648	-99.85%
Sep 30, 2025	BARCLAYS PLC	0%	5	12	5	+100.00%
Sep 30, 2025	VANGUARD GROUP INC	0.76%	23.49K	54.03K	0	0
Sep 30, 2025	FMR LLC	0.15%	4.75K	10.92K	6	+0.13%
Sep 30, 2025	GROUP ONE TRADING, L.P.	0.01%	192	442	0	0
Sep 30, 2025	DRW SECURITIES, LLC	1.42%	43.62K	100.32K	43.62K	+100.00%
Sep 30, 2025	TWO SIGMA INVESTMENTS, LP	0.43%	13.29K	30.57K	13.29K	+100.00%
Sep 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.08%	2.33K	5.35K	-435	-15.74%
Sep 30, 2025	MORGAN STANLEY	0.02%	649	1.49K	0	0
Sep 30, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	5	12	0	0
Sep 30, 2025	MAI CAPITAL MANAGEMENT	0%	100	230	0	0
Sep 30, 2025	UBS GROUP AG	0%	49	113	-9.68K	-99.50%
Sep 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	130	304	0	0
Sep 30, 2025	ACTIVEST WEALTH MANAGEMENT	0%	100	230	0	0
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0%	22	50	-2	-8.33%
Sep 30, 2025	SBI SECURITIES CO., LTD.	0%	0	-	-11	-100.00%
Sep 30, 2025	PANDORA WEALTH, INC.	0%	0	-	-11	-100.00%
Sep 30, 2025	SIREN, L.L.C.	3.78%	116.16K	267.16K	0	0
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.21%	37.16K	85.49K	4.42K	+13.51%
Sep 30, 2025	BLACKROCK, INC.	0.55%	16.8K	38.63K	0	0
Jun 30, 2025	ACTIVEST WEALTH MANAGEMENT	0%	100	291	0	0
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0%	24	70	5	+26.32%
Jun 30, 2025		0%	11	32	11	+100.00%
Jun 30, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	5	15	0	0
Jun 30, 2025	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	0%	0	-	-1	-100.00%
Jun 30, 2025	ZRC WEALTH MANAGEMENT, LLC	0%	0	-	-20	-100.00%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.07%	32.74K	95.29K	1.13K	+3.58%
Jun 30, 2025	VANGUARD GROUP INC	0.76%	23.49K	68.36K	0	0
Jun 30, 2025	BLACKROCK, INC.	0.55%	16.8K	48.88K	0	0
Jun 30, 2025	FMR LLC	0.15%	4.74K	13.79K	-200	-4.05%
Jun 30, 2025	SIREN, L.L.C.	3.78%	116.16K	338.01K	0	0
Jun 30, 2025	TYNDALL CAPITAL PARTNERS L P	5.05%	155.19K	451.59M	-9.59K	-5.82%
Jun 30, 2025	UBS GROUP AG	0.32%	9.73K	28.31K	-3.27K	-25.18%
Jun 30, 2025	MORGAN STANLEY	0.02%	649	1.89K	0	0
Jun 30, 2025	SBI SECURITIES CO., LTD.	0%	11	32	0	0
Jun 30, 2025	PANDORA WEALTH, INC.	0%	11	32	11	+100.00%
Jun 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.09%	2.76K	8.04K	1.71K	+162.14%
Jun 30, 2025	GROUP ONE TRADING, L.P.	0.01%	192	559	-348	-64.44%
Jun 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	130	378	0	0
Jun 30, 2025	MAI CAPITAL MANAGEMENT	0%	100	291	0	0
Mar 31, 2025	TYNDALL CAPITAL PARTNERS L P	6.45%	164.78K	411.94M	0	0
Mar 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0.01%	130	325	0	0
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0%	19	48	0	0
Mar 31, 2025	VANGUARD GROUP INC	0.92%	23.49K	58.02K	0	0
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.24%	31.6K	78.09K	-217	-0.68%
Mar 31, 2025	BLACKROCK, INC.	0.66%	16.8K	41.99K	0	0
Mar 31, 2025	SIREN, L.L.C.	4.54%	116.16K	290.39K	0	0
Mar 31, 2025	ZRC WEALTH MANAGEMENT, LLC	0%	20	50	0	0
Mar 31, 2025	RENAISSANCE TECHNOLOGIES LLC	0%	0	-	-10.61K	-100.00%
Mar 31, 2025	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	0%	1	3	0	0
Mar 31, 2025	ACTIVEST WEALTH MANAGEMENT	0%	100	250	0	0
Mar 31, 2025	BNP PARIBAS ARBITRAGE, SNC	0%	5	12	0	0
Mar 31, 2025		0%	11	28	0	0
Mar 31, 2025	MAI CAPITAL MANAGEMENT	0%	100	250	0	0
Mar 31, 2025	GROUP ONE TRADING, L.P.	0.02%	540	1.33K	0	0
Mar 31, 2025	MORGAN STANLEY	0.03%	649	1.62K	0	0
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.04%	1.05K	2.64K	-1.39K	-56.82%
Mar 31, 2025	FMR LLC	0.19%	4.94K	12.2K	200	+4.22%
Mar 31, 2025	UBS GROUP AG	0.51%	13K	32.5K	3.33K	+34.49%
Sep 30, 2023	ARTAL GROUP S.A.	0.02%	552	2K	0	0

Insiders

Among the CYCN insiders holding of 31.48% of the stake in company, HECHT PETER M, Chief Executive Officer, holds the largest shares of 2.05M. BUSCH ANDREAS, Chief Innovation Officer, is the second largest CYCN insider with ownership of 254.7K shares. CURRIE MARK G, President and CSO, stands third with possession of 251.65K shares of that stake.

Insiders	Designation	Shares Held
HECHT PETER M	Chief Executive Officer	2.05M
BUSCH ANDREAS	Chief Innovation Officer	254.7K
CURRIE MARK G	President and CSO	251.65K
HUYETT WILLIAM	Chief Financial Officer	67.59K
WRIGHT CHRISTOPHER I	Chief Medical Officer	42.73K
GJINO ANJEZA	Chief Financial Officer	31.6K
SCHULMAN AMY W	director	21.64K
MCGUIRE TERRANCE	director	0
SLATE PATH CAPITAL LP	10 percent owner	0

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Nov 21, 2024	SLATE PATH CAPITAL LP	SALE	1.55	357.88K	555.11K	0
Aug 09, 2023	MCGUIRE TERRANCE	SALE	3.40	8	27.16	0
Jun 03, 2021	HECHT PETER M	PURCHASE	3.28	823.17K	2.7M	2.05M
Jun 03, 2021	SLATE PATH CAPITAL LP	PURCHASE	3.12	961.54K	3M	7.16M
Jun 03, 2021	MCGUIRE TERRANCE	PURCHASE	3.12	3.32K	10.36K	24.96K
May 06, 2021	HECHT PETER M	PURCHASE	2.43	302K	733.86K	1.22M
May 05, 2021	HECHT PETER M	PURCHASE	2.53	398K	1.01M	922.53K
May 04, 2021	HECHT PETER M	PURCHASE	2.29	300K	687K	524.53K
Feb 25, 2021	GJINO ANJEZA	SALE	4.00	1.82K	7.3K	31.6K
Feb 25, 2021	WRIGHT CHRISTOPHER I	SALE	3.99	2.64K	10.52K	42.73K
Dec 28, 2020	CURRIE MARK G	SALE	3.01	20.11K	60.52K	251.65K
Nov 09, 2020	BUSCH ANDREAS	PURCHASE	2.53	125K	316.25K	254.7K
Nov 06, 2020	HUYETT WILLIAM	SALE	2.52	3.83K	9.64K	67.59K
Feb 21, 2020	HUYETT WILLIAM	SALE	5.12	3.56K	18.22K	71.42K
Dec 30, 2019	CURRIE MARK G	SALE	2.48	25K	62K	271.76K
Dec 27, 2019	CURRIE MARK G	SALE	2.55	25K	63.75K	296.76K
Nov 15, 2019	BUSCH ANDREAS	PURCHASE	1.82	125K	227.5K	125K
Nov 08, 2019	HUYETT WILLIAM	SALE	2.05	3.92K	8.04K	74.98K
Apr 08, 2019	SCHULMAN AMY W	PURCHASE	16.00	21.64K	346.16K	21.64K
Apr 08, 2019	MCGUIRE TERRANCE	PURCHASE	16.00	21.64K	346.16K	21.64K
Apr 02, 2019	CURRIE MARK G	PURCHASE	14.81	270.11K	4M	321.76K

CYCN Stock Ownership Breakdown