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Security record

DAWN

Day One Biopharmaceuticals, Inc. · Healthcare · Biotechnology

21.53 0.0% mkt cap $2.22B quote delayed (FMP) · as of Oct 11 03:53 UTC — separate from filing data below

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024
86Tracked holders
+1Δ holders
49.82MShares held
$1.05BReported value
+13New positions
−13Exits
Stable Conviction score 40/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +1.2% · share flow +3.3% · net new positions 0.0% — formula
Broad accumulation — rising shares across more holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q1 2026 86 +1 49.82M $1.05B +13 −13
Q4 2025 86 +2 51.33M $478.37M +3 —
Q3 2025 15 -1 35.84M $252.66M — −2
Q2 2025 14 -1 36.93M $240.03M +1 −2
Q1 2025 12 -2 10.53M $83.51M — −2
Q4 2024 14 0 10.71M $135.72M +1 −1
Q3 2024 13 -1 9.77M $136.05M +1 −2
Q2 2024 14 — 8.62M $118.84M — —
Holder count
Who holds it · Q1 2026
#ManagerSharesΔ sharesValueTheir weightHeld
1 BlackRock ✦ (passive) 7.04M -20.3% $151.03M 0.0% ▼ Trim 4 SEC ↗ ×14
2 FIL Ltd 4.13M New $88.59M 0.1% New 1 SEC ↗
3 Vanguard Capital Management Llc 3.36M — $71.99M 0.0% n/c 1 SEC ↗
4 JPMorgan Chase ✦ 3.13M +7101.4% $67.15M 0.0% ▲ Add 3 SEC ↗ ×5
5 State Street Global Advisors ✦ (passive) 2.87M -33.1% $61.53M 0.0% ▼ Trim 6 SEC ↗
6 Balyasny Asset Management L.P. 2.63M +76.2% $56.29M 0.1% ▲ Add 2 SEC ↗
7 UBS Group AG 2.31M +1250.2% $49.42M 0.0% ▲ Add 2 SEC ↗ ×2
8 Geode Capital Management ✦ (passive) 1.95M +4.1% $41.92M 0.0% ▲ Add 8 SEC ↗ ×2
9 Qube Research & Technologies Ltd 1.95M +31.5% $41.91M 0.1% ▲ Add 2 SEC ↗
10 Millennium Management ✦ 1.93M +42.8% $41.33M 0.0% ▲ Add 8 SEC ↗
11 Bank Of America Corp /De/ 1.90M +75.6% $40.80M 0.0% ▲ Add 2 SEC ↗ ×3
12 Nuveen, LLC 1.82M +249.1% $39.11M 0.0% ▲ Add 2 SEC ↗ ×3
13 Soros Fund Management ✦ 1.54M New $33.00M 0.6% New 1 SEC ↗
14 Renaissance Technologies ✦ 1.30M -0.6% $27.81M 0.0% ▼ Trim 8 SEC ↗
15 Goldman Sachs Group ✦ 979.24K -35.0% $20.99M 0.0% ▼ Trim 3 SEC ↗ ×2
16 Dimensional Fund Advisors Lp 819.37K -21.0% $17.57M 0.0% ▼ Trim 2 SEC ↗ ×4
17 Morgan Stanley ✦ 687.11K -55.7% $14.73M 0.0% ▼ Trim 3 SEC ↗ ×8
18 Northern Trust Corp 666.18K +8.0% $14.28M 0.0% ▲ Add 2 SEC ↗ ×5
19 Healthcare Of Ontario Pension Plan… 643.74K New $13.80M 0.0% New 1 SEC ↗
20 Charles Schwab Investment… 617.56K -2.5% $13.24M 0.0% ▼ Trim 2 SEC ↗
21 Janus Henderson Group Plc 546.43K +2465.4% $11.71M 0.0% ▲ Add 2 SEC ↗
22 Alliancebernstein L.P. 1.21M +1692.0% $11.32M 0.0% ▲ Add 2 SEC ↗
23 Jane Street Group, Llc 475.44K -43.8% $10.19M 0.0% ▼ Trim 2 SEC ↗ ×3
24 Susquehanna International Group, Llp 473.54K -35.8% $10.15M 0.0% ▼ Trim 2 SEC ↗
25 AQR Capital Management ✦ 444.47K +2.9% $9.53M 0.0% ▲ Add 8 SEC ↗ ×6
26 Squarepoint Ops LLC 415.71K +313.2% $8.91M 0.0% ▲ Add 2 SEC ↗
27 LMR Partners LLP 362.64K New $7.78M 0.1% New 1 SEC ↗ ×2
28 Bnp Paribas Financial Markets 337.77K -25.5% $7.24M 0.0% ▼ Trim 2 SEC ↗
29 Marshall Wace ✦ 328.64K New $7.05M 0.0% New 1 SEC ↗ ×2
30 Capstone Investment Advisors, Llc 236.00K New $5.06M 0.1% New 1 SEC ↗
31 Bank of New York Mellon Corp 231.04K +9.2% $4.95M 0.0% ▲ Add 2 SEC ↗ ×4
32 Man Group plc 200.00K +1.5% $4.29M 0.0% ▲ Add 2 SEC ↗ ×2
33 Invesco Ltd. 159.90K +29.0% $3.43M 0.0% ▲ Add 2 SEC ↗ ×4
34 Massachusetts Financial Services Co… 147.01K -2.6% $3.15M 0.0% ▼ Trim 2 SEC ↗ ×2
35 Swiss National Bank 141.50K 0.0% $3.03M 0.0% Held 2 SEC ↗
36 UBS AM, a distinct business unit of… 136.99K +10.1% $2.94M 0.0% ▲ Add 2 SEC ↗ ×5
37 T. Rowe Price ✦ 119.29K +16.4% $2.56M 0.0% ▲ Add 8 SEC ↗
38 Rhumbline Advisers 118.56K +6.2% $2.54M 0.0% ▲ Add 2 SEC ↗
39 Nomura Asset Management… 110.00K 0.0% $2.36M 0.0% Held 2 SEC ↗
40 Sei Investments Co 104.60K +178.8% $2.24M 0.0% ▲ Add 2 SEC ↗ ×2
41 American Century Companies Inc 88.28K +11.8% $1.89M 0.0% ▲ Add 2 SEC ↗
42 California State Teachers… 67.46K -6.6% $1.45M 0.0% ▼ Trim 2 SEC ↗
43 Deutsche Bank Ag\ 66.44K +16.6% $1.42M 0.0% ▲ Add 2 SEC ↗ ×2
44 Simplex Trading, Llc 64.46K New $1.38M 0.0% New 1 SEC ↗
45 Wells Fargo & Company/Mn 56.43K -50.8% $1.21M 0.0% ▼ Trim 2 SEC ↗ ×3
46 Franklin Resources Inc 52.62K -0.2% $1.13M 0.0% ▼ Trim 2 SEC ↗ ×2
47 Mariner, LLC 52.34K +67.9% $1.12M 0.0% ▲ Add 2 SEC ↗
48 Legal & General Group Plc 51.76K -18.7% $1.11M 0.0% ▼ Trim 2 SEC ↗ ×3
49 Fisher Asset Management ✦ 43.70K -77.2% $936,885 0.0% ▼ Trim 8 SEC ↗
50 Two Sigma Investments ✦ 41.50K New $889,760 0.0% New 1 SEC ↗
51 MIRAE ASSET GLOBAL ETFS HOLDINGS… 40.96K -10.2% $878,184 0.0% ▼ Trim 2 SEC ↗ ×2
52 Zurcher Kantonalbank (Zurich… 40.31K +4.7% $864,354 0.0% ▲ Add 2 SEC ↗
53 Hrt Financial Lp 37.94K -91.6% $813,000 0.0% ▼ Trim 2 SEC ↗
54 Manufacturers Life Insurance… 36.19K +49.3% $775,828 0.0% ▲ Add 2 SEC ↗
55 ProShare Advisors LLC 33.25K +76.0% $712,815 0.0% ▲ Add 2 SEC ↗
56 Tidal Investments LLC 32.07K New $687,667 0.0% New 1 SEC ↗
57 Point72 Asset Management ✦ 31.94K -79.5% $684,751 0.0% ▼ Trim 2 SEC ↗
58 Creative Planning 31.93K +26.2% $684,601 0.0% ▲ Add 2 SEC ↗
59 Barclays Plc 30.16K -89.7% $646,695 0.0% ▼ Trim 2 SEC ↗ ×3
60 Canada Pension Plan Investment Board 28.10K -27.0% $602,464 0.0% ▼ Trim 2 SEC ↗
61 Cwm, Llc 25.04K +199.1% $536,922 0.0% ▲ Add 2 SEC ↗
62 New York State Common Retirement… 24.73K +103.9% $530,254 0.0% ▲ Add 2 SEC ↗
63 State Of Wisconsin Investment Board 24.30K +3.7% $520,971 0.0% ▲ Add 2 SEC ↗
64 Fidelity (FMR) ✦ 23.64K -99.6% $506,835 0.0% ▼ Trim 4 SEC ↗ ×3
65 D. E. Shaw & Co. ✦ 21.63K -1.3% $463,661 0.0% ▼ Trim 8 SEC ↗
66 Cerity Partners LLC 18.20K +57.1% $390,143 0.0% ▲ Add 2 SEC ↗ ×2
67 State Board Of Administration Of… 17.88K 0.0% $383,347 0.0% Held 2 SEC ↗
68 Quantinno Capital Management LP 17.56K +9.8% $376,401 0.0% ▲ Add 2 SEC ↗
69 Mercer Global Advisors Inc /Adv 16.41K New $351,846 0.0% New 1 SEC ↗
70 Wealth Enhancement Advisory… 15.81K New $339,167 0.0% New 1 SEC ↗
71 Arrowstreet Capital ✦ 15.29K -94.0% $327,903 0.0% ▼ Trim 2 SEC ↗
72 Citigroup Inc 13.85K -42.5% $296,901 0.0% ▼ Trim 2 SEC ↗ ×2
73 Voya Investment Management Llc 13.24K 0.0% $283,908 0.0% Held 2 SEC ↗
74 Pictet Asset Management Holding SA 13.03K -99.6% $279,449 0.0% ▼ Trim 2 SEC ↗
75 Prudential Financial Inc 12.26K New $262,854 0.0% New 1 SEC ↗
76 Russell Investments Group, Ltd. 11.13K -92.2% $238,712 0.0% ▼ Trim 2 SEC ↗ ×3
77 Lazard Asset Management Llc 9.36K -59.4% $200,764 0.0% ▼ Trim 2 SEC ↗
78 Mirae Asset Global Investments Co.… 5.39K +8.0% $115,519 0.0% ▲ Add 2 SEC ↗
79 Royal Bank Of Canada 1.91K -53.5% $41,000 0.0% ▼ Trim 2 SEC ↗ ×3
80 BNP Paribas Asset Management… 1.09K +42.4% $23,327 0.0% ▲ Add 2 SEC ↗
81 Fifth Third Bancorp 774 New $16,595 0.0% New 1 SEC ↗
82 Us Bancorp \De\ 414 +56.8% $8,877 0.0% ▲ Add 2 SEC ↗
83 Osaic Holdings, Inc. 229 -99.4% $4,909 0.0% ▼ Trim 2 SEC ↗
84 Pnc Financial Services Group, Inc. 41 +32.3% $879 0.0% ▲ Add 2 SEC ↗
85 Optiver Holding B.V. 32 -89.0% $686 0.0% ▼ Trim 2 SEC ↗
86 Jones Financial Companies Lllp 2 -99.8% $43 0.0% ▼ Trim 2 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Exited

Citadel Advisors $12.67M was 0.0%
Group One Trading Llc $2.36M was 0.1%
Norges Bank $1.58M was 0.0%
Nomura Holdings Inc $1.07M was 0.0%
Hsbc Holdings Plc $910,688 was 0.0%
Ameriprise Financial Inc $811,520 was 0.0%
Tudor Investment Corp Et Al $580,785 was 0.0%
Cetera Investment Advisers $326,200 was 0.0%
LPL Financial LLC $101,588 was 0.0%
Federated Hermes, Inc. $25,444 was 0.0%
Rockefeller Capital… $9,320 was 0.0%
Daiwa Securities Group Inc. $3,000 was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 206 holders, 83.68M shares, $1.67B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2026 · Methodology · Get this via the API