德爾卡特系統公司
US ˙ NasdaqCM ˙ US24661P8077

SecurityDCTH / Delcath Systems, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership1,733,824 shares
Ownership 4.98%
BlackRock, Inc. ownership in DCTH / Delcath Systems, Inc.

2026-04-27 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,733,824 shares of Delcath Systems, Inc. (US:DCTH). This represents 4.98 percent ownership of the company. In their previous filing dated 2025-10-17 , BlackRock, Inc. had reported owning 1,753,024 shares, indicating a decrease of -1.10 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-04-27 2026-04-27 13G/A 1,753,024 1,733,824 -1.10 4.98 -0.60
2025-10-17 2025-10-17 13G 508,211 1,753,024 244.94 5.01 19.29
2015-03-10 2015-03-10 13G/A 508,211 4.20
2015-02-03 2015-02-03 13G 501,088 5.20
2012-06-08 2012-06-08 13G/A 2,746,075 4.33
2012-02-09 2012-02-09 13G 2,860,579 5.96

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F DELCATH SYS COM NEW 24661P807 1,784,466 -40,620 -2.23 16,560 -10.17 0.0003
2026-02-12 2025-12-31 13F DELCATH SYS COM NEW 24661P807 1,825,086 56,132 3.17 18,433 -3.07 0.0003
2025-11-12 2025-09-30 13F DELCATH SYS COM NEW 24661P807 1,768,954 51,757 3.01 19,016 -18.57 0.0003
2025-08-12 2025-06-30 13F DELCATH SYS COM NEW 24661P807 1,717,197 1,523,830 788.05 23,354 848.92 0.0004
2025-05-02 2025-03-31 13F DELCATH SYS COM NEW 24661P807 193,367 59,716 44.68 2,462 52.95 0.0001
2025-02-07 2024-12-31 13F DELCATH SYS COM NEW 24661P807 133,651 34,463 34.75 1,609 79.78 0.0000
2024-11-13 2024-09-30 13F DELCATH SYS COM NEW 24661P807 99,188 -15,984 -13.88 896 -7.06 0.0000
2024-08-13 2024-06-30 13F DELCATH SYS COM NEW 24661P807 115,172 24,098 26.46 964 121.89 0.0000
2024-05-10 2024-03-31 13F DELCATH SYS COM NEW 24661P807 91,074 -858 -0.93 434 13.61 0.0000
2024-02-13 2023-12-31 13F DELCATH SYS COM NEW 24661P807 91,932 45,522 98.09 382 104.28 0.0000
2023-11-13 2023-09-30 13F DELCATH SYS COM NEW 24661P807 46,410 -770 -1.63 188 -32.00 0.0000
2023-08-11 2023-06-30 13F DELCATH SYS COM NEW 24661P807 47,180 30,548 183.67 275 189.47 0.0000
2023-05-12 2023-03-31 13F DELCATH SYS COM NEW 24661P807 16,632 3,032 22.29 96 97.92 0.0000
2023-02-13 2022-12-31 13F DELCATH SYS COM NEW 24661P807 13,600 292 2.19 49 11.63 0.0000
2022-11-14 2022-09-30 13F DELCATH SYS COM NEW 24661P807 13,308 -365 -2.67 43 -21.82 0.0000
2022-08-12 2022-06-30 13F DELCATH SYS COM NEW 24661P807 13,673 -219 -1.58 55 -37.50 0.0000
2022-05-12 2022-03-31 13F DELCATH SYS COM NEW 24661P807 13,892 -657 -4.52 88 -22.12 0.0000
2022-02-10 2021-12-31 13F DELCATH SYS COM NEW 24661P807 14,549 755 5.47 113 -21.53 0.0000
2021-11-09 2021-09-30 13F DELCATH SYS COM NEW 24661P807 13,794 -1,806 -11.58 144 -26.90 0.0000
2021-08-11 2021-06-30 13F DELCATH SYS COM NEW 24661P807 15,600 15,600 197 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.