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Connect Biopharma Holdings (CNTB): which funds own it

Health Care →(by SIC code, unreviewed)Data as of Jun 30, 2026 (Q2 2026) · updated on Nov 5, 2026

A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.

Sections with a free account

1 concentrated manager holds it (+1 vs last quarter) with a median weight of 0.1%. 1 officer or director bought in 6 months.

Who owns Connect Biopharma Holdings?

Holders that filed a Schedule 13D or 13G with the SEC for owning more than 5% of the shares: Panacea Innovation (13D/A filed Apr 1, 2026) and Braden M Leonard (13G filed Oct 6, 2026). As of Jun 30, 2026, the largest holders reported on Form 13F were Ikarian Capital (4.5 million shares), 683 Capital Management (1.3 million shares) and Boothbay Fund Management (973,732 shares).

Which institutions hold the most Connect Biopharma Holdings shares?

Per Form 13F filings as of Jun 30, 2026:

  1. 1. Ikarian Capital: 4.5 million shares
  2. 2. 683 Capital Management: 1.3 million shares
  3. 3. Boothbay Fund Management: 973,732 shares
  4. 4. BlackRock: 871,653 shares
  5. 5. Perceptive Advisors: 792,696 shares
  6. 6. ADAR1 Capital Management: 700,000 shares
  7. 7. BML Capital Management: 573,287 shares
  8. 8. Silverarc Capital Management: 545,000 shares
  9. 9. Richmond Brothers: 535,612 shares
  10. 10. Knott David M Jr: 444,862 shares

Sources:13D/A by Panacea Innovation (Apr 1, 2026) ↗13G by Braden M Leonard (Oct 6, 2026) ↗All of the company's proxy statements on EDGAR ↗

We hold 13D and 13G filings made since Dec 23, 2024: a holder above 5% that has not filed since then does not appear here.

Connect Biopharma Holdings revenue

Connect Biopharma Holdings reported annual revenue of $64,000 for fiscal year 2025 (year ended December 31, 2025), according to its Form 10-K filed with the SEC (XBRL data).

Concentrated managers
1
All 13F: 56
Consensus
—
No score: it needs 5 or more concentrated managers
Price at Jun 30, 2026 (per 13F)
$2.38
-9.2% in the quarter · reported value ÷ shares, not the quote · See current quote ↗

Quarter flow (concentrated managers)

Change in managers (0 → 1): 1 opened · 0 exited = +1

Net flow in the quarter: +$1.3M (+545 K shares) · bought $1.3M and sold $0Shares concentrated managers added minus those they cut, valued at the 13F quarter-end implied price, not each trade's price. It is a different measure from the change in managers: the two can have opposite signs.

The set of concentrated managers changed between quarters: with the set as it was then, 1 held it last quarter (the chart point); with today's set, 0 (the base for the change).

Concentrated managers holding it

Up to 15, sorted by position value. The percentage is the weight in each manager's portfolio.

Largest holders of CNTB (all 13F filers)

  • Ikarian Capital4.5 MType not verified · 7.21% of the company−850 K
  • 683 Capital Management1.3 MType not verified · 2.04% of the company+385 K
  • Boothbay Fund Management974 KType not verified · 1.55% of the company−261 K
  • BlackRock872 KIndex manager · 1.38% of the company+872 K
  • Perceptive Advisors793 KType not verified · 1.26% of the company0
  • ADAR1 Capital Management700 KType not verified · 1.11% of the company−42 K
  • BML Capital Management573 KType not verified · 0.91% of the company+164 K
  • Silverarc Capital Managementconcentrated545 KInvestment firm · 0.87% of the company+545 K
  • Richmond Brothers536 KType not verified · 0.85% of the company+59 K
  • Knott David M Jr445 KWealth adviser · 0.71% of the company+57 K

The 10 13F filers with the most shares as of Jun 30, 2026, whatever their type (index firms usually come first). “Change”: shares added or cut versus the previous quarter, split-adjusted; “no data” = there is no comparable portfolio for the previous quarter (no filing, or a filing with its holdings under confidential treatment). “% of the company” only where shares outstanding are up to date. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. With a free account: the top 25, the largest buyers and the largest sellers.

Fundamentals

12-month figures to Jun 30, 2026 · balance sheet as of Jun 30, 2026.

Profitability
Operating margin
—
Net margin
—
ROE
-256.8%
Growth
Revenue (TTM)
$3.0M
Revenue growth
50.3%
Net income (TTM)
$-69.0M
Balance sheet
Net debt / EBITDA
—
Free cash flow (TTM)
$-60.6M
Quality vs sector
—

This company's sector comes from its SIC code, unreviewed, or has too few comparable companies: we do not compare it with its sector.

Figures from the statements the company filed with the SEC (10-K, 10-Q). Free cash flow = operating cash flow − capital expenditures; empty if the company does not report capex. “Quality vs sector”: 0 to 100, the average of its percentiles in ROE, operating margin, free-cash-flow margin, revenue and earnings growth and net debt / EBITDA (at least 3 needed) against companies in its sector above $300M. How each figure is calculated

Shares outstanding: buybacks and dilution

Diluted shares by fiscal year (split-adjusted)

2025: 55.7 M

55.7 M0
20242025
1 year
+0.8%
3 years
no data
5 years
no data
Buybacks (FY 2025)
no data
Share issuance
no data
Stock-based compensation
$3.7M5,821.9% of revenue
Dividends paid
no data

From the statements the company filed with the SEC (10-K). The change compares average diluted shares of each fiscal year, on today's basis: negative = it bought back more than it issued; positive = dilution. “No data” = the company does not report that item under a tag we can read; it does not mean zero.

Earnings quality and debt

Operating cash flow ÷ net income (12 months)
no datanot calculated with negative net income
Interest coverage (operating income ÷ interest)
no data
Debt due within 12 months
no data

From the figures the company filed with the SEC. Cash flow over net income near or above 1 means earnings are collected in cash; far below, that part is accounting. Coverage says how many times operating income pays the latest fiscal year's interest. Maturities come from the debt note of the latest annual report, counted from its closing date. “No data” never means zero.

Insiders (Form 4)

Officers and directors who bought (6 m)
1
Amount (6 m)
$372K
CEO/CFO bought (12 m)
No

10% owners who bought (6 m): 0

Open-market purchases, excluding 10b5-1 plans. Officers and directors only; joint filers of the same purchase count as one. 10% owners with no role are shown separately. 0 = nobody bought; “no data” = we do not have its Form 4 filings.

Each of the company's Form 4 filings, on EDGAR ↗Latest trades, with date and filing →

Above 5% (13D/13G)

Disclosed stakes, with their amendments. A filing is not always a purchase: there are also reductions and changes of filing entity.

This list may be incomplete: we hold 13D and 13G filings made since Dec 23, 2024. A holder above 5% that has not filed anything since then is not shown here.

  • Qiming Corporate GP V2.9%(fell below 5%)13G · amendmentfiling ↗Event: Sep 30, 2026 · filed: Nov 3, 2026
  • Braden M Leonard6.77%13Gfiling ↗Event: Sep 30, 2026 · filed: Oct 6, 2026
  • Panacea Innovation21.2%13D · amendmentfiling ↗Event: Mar 31, 2026 · filed: Apr 1, 2026

Above 5% over time (13D/13G)

Each holder with its filings in order. History since December 2024.

Flagged material events (8-K)

  • Mar 30, 2026Routinefiling ↗

    Unregistered sale of equity securities (Item 3.02)

    «Connect Biopharma Announces Positive Topline Data from its Phase 1 Study of Intravenous (IV) Rademikibart in Patients with Asthma or COPD»

  • Dec 23, 2025Routinefiling ↗

    Change in directors or officers (Item 5.02)

Alert items the company itself flagged in its 8-K filings with the SEC, most serious first. It is the form's label, with no interpretation from us: Item 5.02 covers routine appointments as well as a chief executive's departure; open the filing. The quoted headline is the original press release's.

All material events (8-K)

Earnings, agreements, financing, management changes and announcements from the last year, with a filter by type and a link to each filing.

Other Health Care stocks in managers' portfolios

Same sector and a similar number of concentrated managers holding them. It is a list to keep exploring, not a recommendation.

All of Health Care →

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