CNTB · Connect Biopharma Holdings Ltd · Holdings

$2.04 -0.02 (-0.97%) At close · Sep 11

Russell 2000 member Rebalance outlook locked

Market Cap

$128.47M

62.97M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 55

Total Value: $33,064,550

Total Shares: 13,892,680

Institutional Ownership Trend

4 quarters

Holder Concentration

Across 55 13F filers · Δ vs Mar 31, 2026

Top Holder

32.7%

−9.8 pts

Top 5

60.9%

−10.0 pts

Top 10

81.1%

−5.8 pts

HHI

1,382

Broadly held−703

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +15

Institutional value: -3.1%

Shares held: +6.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid 683 Capital Management, LLC	+385,000	1,285,000
Large MARSHALL WACE, LLP	+269,629	335,642
Mega GEODE CAPITAL MANAGEMENT, LLC	+225,325	257,454
Small BML Capital Management, LLC	+164,400	573,287
Mega TWO SIGMA INVESTMENTS, LP	+151,916	199,381

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Ikarian Capital, LLC	−994,552	4,538,534
Mega MILLENNIUM MANAGEMENT LLC	−430,893	43,708
Mid BOOTHBAY FUND MANAGEMENT, LLC	−297,850	973,732
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−203,660	120,448
Mid ADAR1 Capital Management, LLC	−42,400	700,000

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega BlackRock, Inc.	871,653	$2,074,532
Small SILVERARC CAPITAL MANAGEMENT, LLC	545,000	$1,297,100
Mega VANGUARD PORTFOLIO MANAGEMENT LLC	102,755	$244,556
Mega NORTHERN TRUST CORP	82,862	$197,210
Mid SIMPLEX TRADING, LLC	81,948	$195,036

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Propel Bio Management, LLC	209,493	$548,871
Mega CITADEL ADVISORS LLC	112,674	$295,205
Mega JANE STREET GROUP, LLC	51,998	$136,234
Small Simplify Asset Management Inc.	51,475	$134,864
Micro FIFTH LANE CAPITAL, LP	45,000	$117,900

Filter: New 24 Increased 15 Reduced 9 Sold out 9 Unchanged 7

Showing 56 of 56

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Ikarian Capital, LLC

$10,801,710

32.67%

4,538,534

683 Capital Management, LLC

$3,058,300

9.25%

1,285,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
683 Capital Partners, LP	1,285,000	$3,058,300	100.0%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$2,317,482

7.01%

973,732

BlackRock, Inc.

$2,074,532

6.27%

871,653

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	1,054	$2,508	0.1%	Sole
BlackRock Investment Management, LLC	9,892	$23,542	1.1%	Sole
BlackRock Fund Advisors	814,506	$1,938,524	93.4%	Sole
BlackRock Institutional Trust Company, N.A.	46,201	$109,958	5.3%	Sole

PERCEPTIVE ADVISORS LLC

$1,886,616

5.71%

792,696

ADAR1 Capital Management, LLC

$1,666,000

5.04%

700,000

BML Capital Management, LLC

$1,364,423

4.13%

573,287

SILVERARC CAPITAL MANAGEMENT, LLC

$1,297,100

3.92%

545,000

Richmond Brothers, Inc.

$1,274,756

3.86%

535,612

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	140,408	$334,171	26.2%	Sole
Held directly	395,204	$940,585	73.8%	Sole

Knott David M Jr

$1,058,771

3.20%

444,862

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dorset Partners LLC	444,862	$1,058,771	100.0%	Defined

Stonepine Capital Management, LLC

$866,924

2.62%

364,254

MARSHALL WACE, LLP

$798,826

2.42%

335,642

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	325,869	$775,567	97.1%	Other
MARSHALL WACE ASIA Ltd	9,773	$23,259	2.9%	Other

GEODE CAPITAL MANAGEMENT, LLC

$612,740

1.85%

257,454

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	21,698	$51,641	8.4%	Defined
Held directly	235,756	$561,099	91.6%	Defined

TWO SIGMA INVESTMENTS, LP

$474,526

1.44%

199,381

DIADEMA PARTNERS LP

$468,824

1.42%

196,985

Burkehill Global Management, LP

$357,000

1.08%

150,000

VANGUARD PORTFOLIO MANAGEMENT LLC

$244,556

0.74%

102,755

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$243,112

0.74%

102,148

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	102,148	$243,112	100.0%	Other

RENAISSANCE TECHNOLOGIES LLC

$207,774

0.63%

87,300

NORTHERN TRUST CORP

$197,210

0.60%

82,862

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	80,470	$191,518	97.1%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	2,392	$5,692	2.9%	Other

SIMPLEX TRADING, LLC

$195,036

0.59%

81,948

STATE STREET CORP

$158,746

0.48%

66,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC. joint	66,700	$158,746	100.0%	Defined

UBS Group AG

$158,153

0.48%

66,451

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	66,451	$158,153	100.0%	Defined

Persistent Asset Partners Ltd

$118,697

0.36%

49,873

Koa Wealth Management, LLC

$118,048

0.36%

49,600

NEW YORK STATE COMMON RETIREMENT FUND

$115,192

0.35%

48,400

MILLENNIUM MANAGEMENT LLC

$104,025

0.31%

43,708

ROYAL BANK OF CANADA

$97,437

0.29%

40,940

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	540	$1,285	1.3%	Defined
BREWIN DOLPHIN WEALTH MANAGEMENT LTD	40,400	$96,152	98.7%	Defined

BANK OF AMERICA CORP /DE/

$97,389

0.29%

40,920

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BOFA SECURITIES, INC.	40,920	$97,389	100.0%	Defined

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$87,488

0.26%

36,760

XTX Topco Ltd

$68,208

0.21%

28,659

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	28,659	$68,208	100.0%	Defined

Bank of New York Mellon Corp

$57,007

0.17%

23,953

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
The Bank of New York Mellon	23,952	$57,005	100.0%	Defined
Held directly	1	$2	0.0%	Defined

Nuveen, LLC

$47,059

0.14%

19,773

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TEACHERS ADVISORS, LLC joint	19,773	$47,059	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$43,554

0.13%

18,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	18,300	$43,554	100.0%	Other

Y-Intercept (Hong Kong) Ltd

$35,864

0.11%

15,069

WELLS FARGO & COMPANY/MN

$31,511

0.10%

13,240

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	13,240	$31,511	100.0%	Defined

SmartHarvest Portfolios, LLC

$30,694

0.09%

12,897

PRICE T ROWE ASSOCIATES INC /MD/

$29,676

0.09%

12,469

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	12,469	$29,676	100.0%	Defined

JPMORGAN CHASE & CO

$27,887

0.08%

11,718

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	11,597	$27,600	99.0%	Defined
J.P. Morgan Securities plc	121	$287	1.0%	Defined

VANGUARD FIDUCIARY TRUST CO

$26,927

0.08%

11,314

MONOGRAPH WEALTH ADVISORS, LLC

$26,489

0.08%

11,130

RHUMBLINE ADVISERS

$26,130

0.08%

10,979

MORGAN STANLEY

$20,559

0.06%

8,639

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	2	$4	0.0%	Defined
MORGAN STANLEY & CO. LLC	4,066	$9,677	47.1%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	2,362	$5,621	27.3%	Defined
MORGAN STANLEY SMITH BARNEY LLC	2,209	$5,257	25.6%	Defined

CITIGROUP INC

$16,625

0.05%

6,986

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	6,986	$16,625	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$16,431

0.05%

6,904

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	6,904	$16,431	100.0%	Defined

FNY Investment Advisers, LLC

$11,900

0.04%

5,000

BARCLAYS PLC

$6,851

0.02%

2,879

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	1,974	$4,698	68.6%	Defined
BARCLAYS CAPITAL INC.	905	$2,153	31.4%	Defined

Legal & General Group Plc

$5,747

0.02%

2,415

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	2,415	$5,747	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$5,450

0.02%

2,290

Russell Investments Group, Ltd.

$2,844

0.01%

1,195

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	1,195	$2,844	100.0%	Defined

HUNTINGTON NATIONAL BANK

$2,370

0.01%

996

Tower Research Capital LLC (TRC)

$2,099

0.01%

882

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	882	$2,099	100.0%	Defined

FMR LLC

$747

0.00%

314

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	314	$747	100.0%	Defined

Sterling Capital Management LLC

$357

0.00%

150

Caitong International Asset Management Co., Ltd

$157

0.00%

SBI Securities Co., Ltd.

$14

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	76,074	$199,313	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	39,294	$102,950	99.2%	Defined
Jane Street Global Trading, LLC	304	$796	0.8%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	36,600	$95,892	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	29,833	$78,162	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	16,914	$44,314	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	12,400	$32,488	100.0%	Defined

Key facts CIK 1835268 CUSIP G23549101 13F (30d) 21 filings 21 filers Visit website Investor relations