Which hedge funds own GRFS? GRIFOLS S A, Q2 2026 13F holders
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17 of the hedge funds tracked by WhaleCreep disclosed a position in GRFS (GRIFOLS S A) in their Q2 2026 13F filings, worth $266.9m in total. The largest holder by portfolio weight is Permian Investment Partners, LP at 15.9% of its book. 2 managers opened a new position this quarter: Gsa Capital Partners LLP, Walleye Capital LLC. 2 exited: Farallon Capital Management, L.L.C., SaddleRock Capital Management LLC.
Who discovered GRFS first?
Earliest meaningful positions among the 9 tracked managers we observed opening GRFS since Q3 2012.
1 Kingstown Capital Management L.P. First reported Q3 2012 4.3%initial weight · $16.0m Exitedby Q1 2013 · held 2q +12%stock since Q3 2012
Weight of Kingstown Capital Management L.P.'s 13F book in GRFS, by quarter
- 4.3% peak weight, Q3 2012
- $16.0m peak reported value
- 2 quarters held
- 28q before the median tracked entry
The stock's split-adjusted price moved +12% between Q3 2012 and Q4 2012, the last quarter this manager reported the position.
2 Lone Pine Capital LLC First reported Q3 2012 · ≥1% from Q4 2012 0.05%initial weight · $5.0m Exitedby Q4 2013 · held 5q +32%stock since Q3 2012
Weight of Lone Pine Capital LLC's 13F book in GRFS, by quarter
- 1.2% peak weight, Q4 2012
- $134.4m peak reported value
- 5 quarters held
- 28q before the median tracked entry
The stock's split-adjusted price moved +32% between Q3 2012 and Q3 2013, the last quarter this manager reported the position.
3 Farallon Capital Management, L.L.C. First reported Q1 2013 · ≥1% from Q2 2016 0.4%initial weight · $13.5m Exitedby Q2 2026 · held 43q –stock change
Weight of Farallon Capital Management, L.L.C.'s 13F book in GRFS, by quarter
- 1.0% peak weight, Q2 2016
- $72.5m peak reported value
- 43 quarters held, in 3 separate spells
- 26q before the median tracked entry
4 Soros Fund Management First reported Q1 2019 1.1%initial weight · $42.8m Exitedby Q4 2024 · held 10q –stock change
Weight of Soros Fund Management's 13F book in GRFS, by quarter
- 2.4% peak weight, Q1 2020
- $49.1m peak reported value
- 10 quarters held, in 3 separate spells
- 2q before the median tracked entry
16 managers already held GRFS when our coverage of them began
Permian Investment Partners, LP (Q1 2026), Flat Footed LLC (Q1 2026), Armistice Capital, LLC (Q1 2026), Whitebox Advisors LLC (Q1 2026), Gabelli & CO Investment Advisers, Inc. (Q1 2026), Campbell & CO Investment Adviser LLC (Q1 2026), Verition Fund Management LLC (Q1 2026), Millennium Management LLC (Q1 2026), Wolverine Asset Management LLC (Q1 2026), Hudson Bay Capital Management LP (Q1 2026), Arrowstreet Capital, Limited Partnership (Q1 2026), Engineers Gate Manager LP (Q1 2026), Qube Research & Technologies LTD (Q1 2026), Citadel Advisors LLC (Q1 2026), Aqr Capital Management LLC (Q1 2026), SaddleRock Capital Management LLC (Q1 2026).
Their first filing on record already includes GRFS, so when they first bought it is unknown. They are not ranked above.
View discovery timeline
- Early holdersQ3 2012 – Q2 20194 new tracked holders · 3.5% of tracked managers holding at the end
- Emerging interestQ3 2019 – Q3 20191 new tracked holder · 5.3% of tracked managers holding at the end
- Established ownershipQ4 2019 – now4 new tracked holders · 1.4% of tracked managers holding now
Dots mark the ranked managers' first reported quarters. Price is the quarter-end price implied by 13F filings, split-adjusted, shown from Q1 2024 where the series is continuous. Coverage widened in Q1 2026 from about a hundred managers to over a thousand, so holders and new holders are shown relative to the managers filing each quarter.
How this is calculated
13F filings are quarterly snapshots of long US-listed equity positions. They do not show exact purchase dates, intra-quarter trading, short positions, most derivatives, or a manager's actual performance. "First reported" is the first quarter-end filing that shows the position.
A manager is ranked only if we observed it filing, without GRFS, within two quarters before its first position. Ranking is by the first quarter the position reached 1% of the manager's 13F book in a run of at least 2 filings, then by peak weight. "High conviction" means a peak weight of at least 5%.
Stock changes are the split-adjusted change in the quarter-end price implied by 13F filings, excluding dividends. They describe the stock over the period, not the return any manager earned. Phases are cut where the share of tracked managers holding GRFS passed one third and two thirds of its peak.
Which hedge funds hold GRFS? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Permian Investment Partners, LP | Q2 2026 | 15.9% | $139.8m | 19,740,679 | 2% | added |
| Flat Footed LLC | Q2 2026 | 5.3% | $30.8m | 4,349,708 | 217% | added |
| Armistice Capital, LLC | Q2 2026 | 0.6% | $20.8m | 2,936,000 | -2% | reduced |
| Whitebox Advisors LLC | Q2 2026 | 0.2% | $11.4m | 1,603,483 | -22% | reduced |
| Gabelli & CO Investment Advisers, Inc. | Q2 2026 | 0.1% | $550.3k | 77,728 | 0% | held |
| Gsa Capital Partners LLP | Q2 2026 | 0.0% | $721.0k | 101,833 | – | new |
| Campbell & CO Investment Adviser LLC | Q2 2026 | 0.0% | $791.0k | 111,729 | 75% | added |
| Verition Fund Management LLC | Q2 2026 | 0.0% | $3.9m | 550,746 | -22% | reduced |
| Millennium Management LLC | Q2 2026 | 0.0% | $30.9m | 4,369,934 | -13% | reduced |
| Wolverine Asset Management LLC | Q2 2026 | 0.0% | $1.2m | 164,690 | 0% | held |
| Hudson Bay Capital Management LP | Q2 2026 | 0.0% | $3.1m | 435,361 | 51% | added |
| Arrowstreet Capital, Limited Partnership | Q2 2026 | 0.0% | $18.7m | 2,646,607 | -3% | reduced |
| Engineers Gate Manager LP | Q2 2026 | 0.0% | $344.8k | 48,700 | -27% | reduced |
| Qube Research & Technologies LTD | Q2 2026 | 0.0% | $2.9m | 406,087 | 84% | added |
| Citadel Advisors LLC | Q2 2026 | 0.0% | $806.7k | 113,947 | 437% | added |
| Aqr Capital Management LLC | Q2 2026 | 0.0% | $275.2k | 38,870 | 27% | added |
| Walleye Capital LLC | Q2 2026 | 0.0% | $99 | 14 | – | new |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Farallon Capital Management, L.L.C. | 0.0% | $224.6k |
| SaddleRock Capital Management LLC | 17.8% | $2.8m |
Held in a manager's last filing on record
These managers have not filed for the latest quarter; their last disclosure is dated.
| Manager | Last filing | Weight |
|---|---|---|
| point72 | Q2 2026 | 0.0% |
How has hedge fund ownership of GRFS changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 18 | $267.1m |
| Q1 2026 | 19 | $285.3m |
| Q4 2025 | 2 | $2.9m |
| Q3 2025 | 2 | $1.7m |
| Q2 2025 | 2 | $1.9m |
| Q1 2025 | 2 | $1.4m |
| Q4 2024 | 1 | $208.3k |
| Q3 2024 | 4 | $9.4m |
| Q2 2024 | 3 | $8.7m |
| Q1 2024 | 2 | $1.1m |
| Q4 2023 | 1 | $10.6m |
| Q3 2023 | 1 | $32.2m |
| Q2 2023 | 1 | $17.5m |
| Q3 2022 | 1 | $14.7m |
| Q2 2022 | 1 | $2.8m |
| Q4 2021 | 1 | $596.0k |
Counts every tracked manager that disclosed GRFS in that quarter's filing, including managers that have since stopped filing.