Vault-13

CONNECT BIOPHARMA HLDGS LTD CNTB

SHS · Common Stock · CUSIP G23549101

55 institutional holders +15 vs Q1 2026
13,874,38013.9m shares reported held*
22.0% of all shares outstanding*
$33.0mreported value*
24 new 15 added 9 reduced 9 sold out net bought ≈ $2.7m (+1.1m 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: 63.0m as of 2026-07-31, 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 ≈ $2.38. Options: 2 managers hold calls ($5.2k notional), 2 hold puts ($45.0k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q3 25: 15Q4 25: 28Q1 26: 40Q2 26: 5555Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q3 202515
Q4 202528
Q1 202640
Q2 202655

Buyers vs sellers

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

Bought or addedCut or sold out
40040Q4 25: 19 bought or addedQ4 25: 6 cut or sold outQ4 25Q1 26: 24 bought or addedQ1 26: 9 cut or sold outQ1 26Q2 26: 39 bought or addedQ2 26: 18 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q4 2025196
Q1 2026249
Q2 20263918

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600kQ3 25 calls: $1.2kQ3 25 puts: $148Q3 25P/C 0.12Q4 25 calls: $513.8kQ4 25 puts: $2.5kQ4 25P/C 0.00Q1 26 calls: $525.6kQ1 26 puts: $229.5kQ1 26P/C 0.44Q2 26 calls: $5.2kQ2 26 puts: $45.0kQ2 26P/C 8.59
Numbers
QuarterCallsPutsP/C
Q3 2025$1.2k$1480.12
Q4 2025$513.8k$2.5k0.00
Q1 2026$525.6k$229.5k0.44
Q2 2026$5.2k$45.0k8.59

Biggest buyers

BlackRock, Inc. New +871,653+871.7k
SILVERARC CAPITAL MANAGEMENT, LLC New +545,000+545.0k
683 Capital Management, LLC Added +385,000+385.0k
MARSHALL WACE, LLP Added +269,629+269.6k
GEODE CAPITAL MANAGEMENT, LLC Added +225,325+225.3k
BML Capital Management, LLC Added +164,400+164.4k
TWO SIGMA INVESTMENTS, LP Added +151,916+151.9k
VANGUARD PORTFOLIO MANAGEMENT LLC New +102,755+102.8k
NORTHERN TRUST CORP New +82,862+82.9k
SIMPLEX TRADING, LLC New +81,948+81.9k

Biggest sellers

Ikarian Capital, LLC Reduced -849,952-850.0k
MILLENNIUM MANAGEMENT LLC Reduced -430,893-430.9k
BOOTHBAY FUND MANAGEMENT, LLC Reduced -260,850-260.9k
Propel Bio Management, LLC Sold out -209,493-209.5k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -176,660-176.7k
CITADEL ADVISORS LLC Sold out -76,074-76.1k
Simplify Asset Management Inc. Sold out -51,475-51.5k
FIFTH LANE CAPITAL, LP Sold out -45,000-45.0k
ADAR1 Capital Management, LLC Reduced -42,400-42.4k
JANE STREET GROUP, LLC Sold out -39,598-39.6k

Biggest calls

SIMPLEX TRADING, LLC Reduced $3.3k1.4k shares
GROUP ONE TRADING LLC Unchanged $1.9k800 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $43.6k18.3k shares
SIMPLEX TRADING, LLC Reduced $1.4k600 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

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
Panacea Innovation Ltd 13D · may seek influence -0.3 pts · filed 2026-04-01
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: Securities Purchase Agreement On March 29, 2026, Panacea Venture Healthcare Fund II, L.P., together with certain other investors, entered into a Securities Purchase Agreement (the "Securities Purchase Agreement") with the Issuer, pursuant to which the Issuer agreed to sell an aggregate of 6,130,000 Ordinary Shares (the "Offering"). Pursuant to the Securities Purchase Agreement, Panacea Venture Healthcare Fund II, L.P. purchased 1,160,000 Ordinary Shares at a price of $3.45 per Ordinary Share. The Offering closed on March 31, 2026. Pursuant to the Securities Purchase Agreement, the Issuer agreed to file a registration statement with the Securities and Exchange Commission within 45 days after the closing of the Offe… Full filing
21.2% -0.3 pts 13.2m≈ $31.3m 2026-04-01
BML Investment Partners, L.P. 13G · passive investor new · filed 2026-10-06 6.8% new 4.3m≈ $10.1m 2026-10-06

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
101Q4 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: 1 buyingQ1 26: 0 sellingQ1 26Q2 26: 1 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 20261$4.0m0——
Q2 20261$372.0k0——
Q3 20260—0——
DateInsiderTradeSharesPrice ValueTheir holding
2026-05-29 Huang James Director · See Footnote Bought 150,000 $2.48 $372.0k150.0k shares +1%

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 1.77% of their portfolio DALLAS, TX 4,538,5344.5m $10.8m $10.8m 1.77% Reduced -850.0k -849,952
2 683 Capital Management, LLC 0.28% of their portfolio NEW YORK, NY 1,285,0001.3m $3.1m $3.1m 0.28% Added +385.0k +385,000
3 BOOTHBAY FUND MANAGEMENT, LLC 0.04% of their portfolio NEW YORK, NY 973,732973.7k $2.3m $2.3m 0.04% Reduced -260.9k -260,850
4 BlackRock, Inc. 0.00% of their portfolio New York, NY 871,653871.7k $2.1m $2.1m 0.00% New
5 PERCEPTIVE ADVISORS LLC 0.03% of their portfolio NEW YORK, NY 792,696792.7k $1.9m $1.9m 0.03% Unchanged
6 ADAR1 Capital Management, LLC 0.08% of their portfolio AUSTIN, TX 700,000700.0k $1.7m $1.7m 0.08% Reduced -42.4k -42,400
7 BML Capital Management, LLC 0.78% of their portfolio ZIONSVILLE, IN 573,287573.3k $1.4m $1.4m 0.78% Added +164.4k +164,400
8 SILVERARC CAPITAL MANAGEMENT, LLC 0.14% of their portfolio BOSTON, MA 545,000545.0k $1.3m $1.3m 0.14% New
9 Richmond Brothers, Inc. 0.66% of their portfolio JACKSON, MI 535,612535.6k $1.3m $1.3m 0.66% Added +59.0k +59,028
10 Knott David M Jr 0.56% of their portfolio SYOSSET, NY 444,862444.9k $1.1m $1.1m 0.56% Added +57.0k +57,027
11 Stonepine Capital Management, LLC 0.66% of their portfolio Bend, OR 364,254364.3k $866.9k $866.9k 0.66% Added +54.3k +54,254
12 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 335,642335.6k $798.8k $798.8k 0.00% Added +269.6k +269,629
13 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 257,454257.5k $612.7k $612.7k 0.00% Added +225.3k +225,325
14 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 199,381199.4k $474.5k $474.5k 0.00% Added +151.9k +151,916
15 DIADEMA PARTNERS LP 0.17% of their portfolio MORRISTOWN, NJ 196,985197.0k $468.8k $468.8k 0.17% Reduced -3.7k -3,705
16 Burkehill Global Management, LP 0.01% of their portfolio NEW YORK, NY 150,000150.0k $357.0k $357.0k 0.01% Unchanged
17 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 102,755102.8k $244.6k $244.6k 0.00% New
18 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 102,148102.1k $243.1k $243.1k 0.00% Reduced -176.7k -176,660
19 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 87,30087.3k $207.8k $207.8k 0.00% Reduced -33.4k -33,400
20 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 82,86282.9k $197.2k $197.2k 0.00% New
21 SIMPLEX TRADING, LLC 0.01% of their portfolio CHICAGO, IL 81,94881.9k $195.0k $195.0k 0.01% New
22 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 66,70066.7k $158.7k $158.7k 0.00% New
23 UBS Group AG 0.00% of their portfolio ZURICH, V8 66,45166.5k $158.2k $158.2k 0.00% Added +66.4k +66,418
24 Persistent Asset Partners Ltd 0.04% of their portfolio HONG KONG, K3 49,87349.9k $118.7k $118.7k 0.04% Reduced -874 -874
25 Koa Wealth Management, LLC 0.08% of their portfolio Encinitas, CA 49,60049.6k $118.0k $118.0k 0.08% Unchanged
26 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 48,40048.4k $115.2k $115.2k 0.00% New
27 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 43,70843.7k $104.0k $104.0k 0.00% Reduced -430.9k -430,893
28 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 40,94040.9k $97.0k $97.0k 0.00% Added +540 +540
29 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 40,92040.9k $97.4k $97.4k 0.00% Added +25.2k +25,247
30 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 36,76036.8k $87.5k $87.5k 0.00% New
31 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 28,65928.7k $68.2k $68.2k 0.00% Reduced -12.5k -12,469
32 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 23,95324.0k $57.0k $57.0k 0.00% New
33 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 19,77319.8k $47.1k $47.1k 0.00% New
34 Y-Intercept (Hong Kong) Ltd 0.00% of their portfolio HONG KONG, K3 15,06915.1k $35.9k $35.9k 0.00% New
35 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 13,24013.2k $31.5k $31.5k 0.00% New
36 SmartHarvest Portfolios, LLC 0.01% of their portfolio SEATTLE, WA 12,89712.9k $30.7k $30.7k 0.01% Unchanged
37 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 12,46912.5k $30.0k $30.0k 0.00% New
38 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 11,71811.7k $27.9k $27.9k 0.00% Added +11.6k +11,597
39 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 11,31411.3k $26.9k $26.9k 0.00% New
40 MONOGRAPH WEALTH ADVISORS, LLC 0.00% of their portfolio MANHATTAN BEACH, CA 11,13011.1k $26.5k $26.5k 0.00% Unchanged
41 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 10,97911.0k $26.1k $26.1k 0.00% Added +10.2k +10,199
42 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 8,6398.6k $20.6k $20.6k 0.00% Added +5.0k +5,049
43 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 6,9867.0k $16.6k $16.6k 0.00% Added +7.0k +6,985
44 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 6,9046.9k $16.4k $16.4k 0.00% New
45 FNY Investment Advisers, LLC 0.00% of their portfolio NEW YORK, NY 5,0005.0k $11.0k $11.0k 0.00% Unchanged
46 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 2,8792.9k $6.9k $6.9k 0.00% New
47 Legal & General Group Plc 0.00% of their portfolio London, X0 2,4152.4k $5.7k $5.7k 0.00% New
48 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 2,2902.3k $5.5k $5.5k 0.00% New
49 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 1,1951.2k $2.8k $2.8k 0.00% New
50 HUNTINGTON NATIONAL BANK 0.00% of their portfolio COLUMBUS, OH 996996 $2.4k $2.4k 0.00% New
51 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 882882 $2.1k $2.1k 0.00% New
52 FMR LLC 0.00% of their portfolio BOSTON, MA 314314 $747 $747 0.00% New
53 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 150150 $357 $357 0.00% New
54 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 6666 $157 $157 0.00% New
55 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 66 $14 $14 0.00% Unchanged