Security key
H0036K147
ADC Therapeutics SA - Common Shares, par value CHF 0.08 per share (ADCT)
CUSIP: H0036K147
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Shares, par value CHF 0.08 per share
- Total 13F shares
- 80,640,256
- Total 13F value
- $86,330,968
- Share change
- -2,613,655
- SEC-reported price per share
- $1.07
- Number of holders
- 113
- Value change
- -$26,978,911
- Number of buys
- 68
- Number of sells
- 59
- Shares outstanding
- 127,205,201
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
113
Top holders
10
ADCT full security history
Ownership snapshot
Full 13F holder table
ADC Therapeutics SA SEC filings
ADC Therapeutics SA company facts
Broader feeds
Ownership snapshot
Top reported holders of ADCT - ADC Therapeutics SA - Common Shares, par value CHF 0.08 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Redmile Group, LLC
Disclosed value leader
Redmile Group, LLC
Comparable rows
15/15
Latest evidence
30 Jun 2026
3/4/5
13D/G
13F
Lead comparable stake: 9.9%
13D/G row: Redmile Group, LLC
Showing 1-6 of 15 holder rows.
Quick read
Redmile Group, LLC leads the comparable SEC ownership view at 9.9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Redmile Group, LLC's linked filing trail.
Comparable ownership
Top 5
Redmile Group, LLC
9.9%
Nantahala Capital Management, LLC
9.7%
HPWH TH AG
9.6%
TCG Crossover GP II, LLC
9.2%
Prosight Management, LP
6.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Redmile Group, LLC |
3/4/5
13D/G
13F
10%+ Owner · Company
|
9.9%
from 13D/G
|
$105,194,110
30,624,334 shares
mixed-class rows
|
+$10,363,653 | 31 Mar 2026 |
| Nantahala Capital Management, LLC |
13F
13D/G
Company
|
9.7%
from 13D/G
|
$20,990,374
5,597,433 shares
|
— | 31 Mar 2026 |
| HPWH TH AG |
13D/G
Dr. Hans-Peter Wild
|
9.6%
|
$14,291,858
9,788,944 shares
|
$0 | 15 May 2025 |
| TCG Crossover GP II, LLC |
13D/G
|
9.2%
|
$42,143,648
11,390,175 shares
|
$0 | 27 Oct 2025 |
| Prosight Management, LP |
13D/G
13F
Company
|
6.8%
|
$31,366,151
8,477,338 shares
|
+$4,743,267 | 31 Dec 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.4%
from 13D/G
|
$23,440,301
6,250,747 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
113
Shares
80,640,256
Rows available
113
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
118
Q2 2026 holders
113
Holder diff
-5
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|