QuidelOrtho
QDEL
244 hedge funds and large institutions have $2.35B invested in QuidelOrtho in 2025 Q4 according to their latest regulatory filings, with 34 funds opening new positions, 83 increasing their positions, 98 reducing their positions, and 40 closing their positions.
50% more funds holding in top 10
Funds holding in top 10: 2 → 3 (+1)
13% more call options, than puts
Call options by funds: $5.84M | Put options by funds: $5.16M
0.45% more ownership
Funds ownership: 120.81% → 121.26% (+0.45%)
3% less capital invested
Capital invested by funds: $2.41B → $2.35B (-$61M)
4% less funds holding
Funds holding: 255 → 244 (-11)
15% less first-time investments, than exits
New positions opened: 34 | Existing positions closed: 40
15% less repeat investments, than reductions
Existing positions increased: 83 | Existing positions reduced: 98
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$25M |
| 2 |
Goldman Sachs
New York
|
+$23.9M |
| 3 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$22.2M |
| 4 |
RHJA
Rice Hall James & Associates
San Diego,
California
|
+$15.6M |
| 5 |
Invesco
Atlanta,
Georgia
|
+$15.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fuller & Thaler Asset Management
San Mateo,
California
|
-$48.8M |
| 2 |
ECM
Estuary Capital Management
Wayzata,
Minnesota
|
-$28.6M |
| 3 |
RCMNY
Rubric Capital Management (New York)
New York
|
-$23.3M |
| 4 |
VLKIM
Van Lanschot Kempen Investment Management
Amsterdam,
Netherlands
|
-$11.6M |
| 5 |
ACH
ArrowMark Colorado Holdings
Denver,
Colorado
|
-$9.77M |
QDEL Hedge Fund Activity: Q4 2025 in Review
244 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in QuidelOrtho (QDEL) for Q4 2025, worth a combined $2.35B — down 2.5% from $2.41B a quarter earlier.
Sellers outnumbered buyers: 40 funds closed out of QDEL and 34 opened new positions — a net loss of 6 holders — while 98 trimmed existing stakes and 83 added.
The largest buyer was Fidelity Investments, adding an estimated $25M. The largest seller was Fuller & Thaler Asset Management, exiting entirely with an estimated $48.8M sold.
- 244 institutional investors held QuidelOrtho (QDEL) as of Q4 2025, down from 255 in Q3 2025.
- Funds reported $2.35B of QuidelOrtho stock for Q4 2025, down 2.5% quarter-over-quarter.
- 34 funds opened new QuidelOrtho positions in Q4 2025 and 40 closed out, a net change of -6 holders.
- The largest QuidelOrtho buyer in Q4 2025 was Fidelity Investments, an estimated $25M added.
- The largest QuidelOrtho seller in Q4 2025 was Fuller & Thaler Asset Management, an estimated $48.8M sold.
Based on aggregated 13F filings for Q4 2025.