QuidelOrtho Corporation
DE ˙ DB ˙ US2197981051
12,00 € ↑0,46 (4,03%)
2026-06-05
DEL PRIS
SecurityDE:QL1A / QuidelOrtho Corporation
InstitutionRhumbline Advisers
Latest Disclosed Ownership170,816 shares
Latest Disclosed Value $ 2,806,478
Rhumbline Advisers reports 4.04% increase in ownership of QL1A / QuidelOrtho Corporation

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 170,816 shares of QuidelOrtho Corporation (DE:QL1A) valued at $2,391,424 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 164,179 shares of QuidelOrtho Corporation. This represents a change in shares of 4.04% during the quarter. The current value of the position is $2,048,938 USD.

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)
2026-05-12 2026-03-31 13F QUIDELORTHO COM 219798105 170,816 6,637 4.04 2,806 -40.15 0.0024
2026-02-13 2025-12-31 13F QUIDELORTHO COM 219798105 164,179 -11,015 -6.29 4,689 -9.13 0.0038
2025-11-06 2025-09-30 13F QUIDELORTHO COM 219798105 175,194 1,927 1.11 5,159 3.32 0.0041
2025-08-12 2025-06-30 13F QUIDELORTHO COM 219798105 173,267 44,242 34.29 4,994 10.68 0.0043
2025-05-29 2025-03-31 13F/A-1 QUIDELORTHO COM 219798105 129,025 770 0.60 4,512 -21.04 0.0042
2025-04-08 2025-03-31 13F QUIDELORTHO COM 219798105 129,025 770 4,512 0.0042
2025-05-29 2024-12-31 13F/A-1 QUIDELORTHO COM 219798105 128,255 12,026 10.35 5,714 7.79 0.0051
2025-01-30 2024-12-31 13F QUIDELORTHO COM 219798105 128,255 12,026 5,714 0.0051
2024-11-12 2024-09-30 13F QUIDELORTHO COM 219798105 116,229 -21,147 -15.39 5,300 16.15 0.0048
2024-08-01 2024-06-30 13F QUIDELORTHO COM 219798105 137,376 -5,590 -3.91 4,564 -33.42 0.0043
2024-05-09 2024-03-31 13F QUIDELORTHO COM 219798105 142,966 -10,252 -6.69 6,854 -39.31 0.0066
2024-02-08 2023-12-31 13F QUIDELORTHO COM 219798105 153,218 816 0.54 11,292 1.45 0.0118
2023-11-09 2023-09-30 13F QUIDELORTHO COM 219798105 152,402 -8,584 -5.33 11,131 -16.55 0.0129
2023-08-08 2023-06-30 13F QUIDELORTHO COM 219798105 160,986 6,653 4.31 13,339 102,507.69 0.0149
2023-05-11 2023-03-31 13F QUIDELORTHO COM 219798105 154,333 -2,186 -1.40 14 -99.90 0.0170
2023-02-14 2022-12-31 13F QUIDELORTHO COM 219798105 156,519 6,844 4.57 13,409 25.33 0.0180
2022-11-10 2022-09-30 13F QUIDELORTHO COM 219798105 149,675 11,636 8.43 10,699 -20.25 0.0159
2022-08-11 2022-06-30 13F QUIDELORTHO COM 219798105 138,039 138,039 13,415 0.0196
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.