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Security record · archived quarter

DYN

Dyne Therapeutics, Inc. · Healthcare · Biotechnology

26.34 +1.3% mkt cap $4.92B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
87Tracked holders
-4Δ holders
78.51MShares held
$1.42BReported value
+7New positions
−12Exits
Falling Conviction score 35/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -4.4% · share flow -5.1% · net new positions -5.7%formula
Broad distribution — falling shares and fewer holders

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

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 86 +1 73.72M $1.63B +7 −5
Q1 2026 87 -4 78.51M $1.42B +7 −12
Q4 2025 92 0 87.58M $1.71B +2 −1
Q3 2025 18 +1 57.06M $721.88M +1 −1
Q2 2025 15 +2 34.50M $328.45M +2
Q1 2025 10 -1 12.46M $130.33M +1 −2
Q4 2024 11 0 14.93M $351.71M +1 −1
Q3 2024 10 -2 10.58M $380.14M +1 −3
Q2 2024 12 13.13M $463.42M
Holder count
Who holds it · Q1 2026
#ManagerSharesΔ sharesValueTheir weightHeld
1 Janus Henderson Group Plc 13.65M -1.7% $247.43M 0.1% ▼ Trim 2 SEC ↗
2 Janus Henderson Group Plc 13.65M -1.7% $247.43M 0.1% ▼ Trim 2 SEC ↗
3 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
4 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
5 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
6 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
7 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
8 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
9 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
10 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
11 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
12 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
13 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
14 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
15 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
16 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
17 BlackRock (passive) 11.70M +4.5% $212.12M 0.0% ▲ Add 4 SEC ↗
18 Fidelity (FMR) 8.91M +35.6% $161.52M 0.0% ▲ Add 4 SEC ↗
19 Fidelity (FMR) 8.91M +35.6% $161.52M 0.0% ▲ Add 4 SEC ↗
20 Fidelity (FMR) 8.91M +35.6% $161.52M 0.0% ▲ Add 4 SEC ↗
21 Fidelity (FMR) 8.91M +35.6% $161.52M 0.0% ▲ Add 4 SEC ↗
22 State Street Global Advisors (passive) 6.65M -0.6% $120.63M 0.0% ▼ Trim 6 SEC ↗
23 Vanguard Capital Management Llc 6.41M $116.12M 0.0% n/c 1 SEC ↗
24 Geode Capital Management (passive) 3.50M +7.4% $63.54M 0.0% ▲ Add 8 SEC ↗
25 Geode Capital Management (passive) 3.50M +7.4% $63.54M 0.0% ▲ Add 8 SEC ↗
26 JPMorgan Chase 3.25M -8.3% $55.60M 0.0% ▼ Trim 3 SEC ↗
27 JPMorgan Chase 3.25M -8.3% $55.60M 0.0% ▼ Trim 3 SEC ↗
28 JPMorgan Chase 3.25M -8.3% $55.60M 0.0% ▼ Trim 3 SEC ↗
29 JPMorgan Chase 3.25M -8.3% $55.60M 0.0% ▼ Trim 3 SEC ↗
30 JPMorgan Chase 3.25M -8.3% $55.60M 0.0% ▼ Trim 3 SEC ↗
31 JPMorgan Chase 3.25M -8.3% $55.60M 0.0% ▼ Trim 3 SEC ↗
32 T. Rowe Price 2.33M +0.2% $42.22M 0.0% ▲ Add 8 SEC ↗
33 T. Rowe Price 2.33M +0.2% $42.22M 0.0% ▲ Add 8 SEC ↗
34 Franklin Resources Inc 2.01M +0.1% $36.42M 0.0% ▲ Add 2 SEC ↗
35 Franklin Resources Inc 2.01M +0.1% $36.42M 0.0% ▲ Add 2 SEC ↗
36 Franklin Resources Inc 2.01M +0.1% $36.42M 0.0% ▲ Add 2 SEC ↗
37 Goldman Sachs Group 1.72M -24.5% $31.24M 0.0% ▼ Trim 3 SEC ↗
38 Goldman Sachs Group 1.72M -24.5% $31.24M 0.0% ▼ Trim 3 SEC ↗
39 Bank Of America Corp /De/ 1.44M +63.5% $26.17M 0.0% ▲ Add 2 SEC ↗
40 Bank Of America Corp /De/ 1.44M +63.5% $26.17M 0.0% ▲ Add 2 SEC ↗
41 Bank Of America Corp /De/ 1.44M +63.5% $26.17M 0.0% ▲ Add 2 SEC ↗
42 Bank Of America Corp /De/ 1.44M +63.5% $26.17M 0.0% ▲ Add 2 SEC ↗
43 Aberdeen Group plc 1.43M +29.1% $25.93M 0.0% ▲ Add 2 SEC ↗
44 Northern Trust Corp 1.20M +9.8% $21.73M 0.0% ▲ Add 2 SEC ↗
45 Northern Trust Corp 1.20M +9.8% $21.73M 0.0% ▲ Add 2 SEC ↗
46 Northern Trust Corp 1.20M +9.8% $21.73M 0.0% ▲ Add 2 SEC ↗
47 Northern Trust Corp 1.20M +9.8% $21.73M 0.0% ▲ Add 2 SEC ↗
48 Northern Trust Corp 1.20M +9.8% $21.73M 0.0% ▲ Add 2 SEC ↗
49 Charles Schwab Investment… 1.16M +0.6% $21.00M 0.0% ▲ Add 2 SEC ↗
50 Adage Capital Partners 1.00M -80.7% $18.13M 0.0% ▼ Trim 4 SEC ↗
51 Dimensional Fund Advisors Lp 951.59K +870.3% $17.24M 0.0% ▲ Add 2 SEC ↗
52 Dimensional Fund Advisors Lp 951.59K +870.3% $17.24M 0.0% ▲ Add 2 SEC ↗
53 Dimensional Fund Advisors Lp 951.59K +870.3% $17.24M 0.0% ▲ Add 2 SEC ↗
54 Dimensional Fund Advisors Lp 951.59K +870.3% $17.24M 0.0% ▲ Add 2 SEC ↗
55 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
56 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
57 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
58 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
59 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
60 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
61 Morgan Stanley 929.00K -23.4% $16.84M 0.0% ▼ Trim 3 SEC ↗
62 Squarepoint Ops LLC 834.18K +226.9% $15.12M 0.0% ▲ Add 2 SEC ↗
63 Nuveen, LLC 718.33K +15.6% $13.02M 0.0% ▲ Add 2 SEC ↗
64 Nuveen, LLC 718.33K +15.6% $13.02M 0.0% ▲ Add 2 SEC ↗
65 Nuveen, LLC 718.33K +15.6% $13.02M 0.0% ▲ Add 2 SEC ↗
66 Artisan Partners Limited Partnership 619.46K -4.7% $11.23M 0.0% ▼ Trim 2 SEC ↗
67 Renaissance Technologies 533.60K +13.4% $9.67M 0.0% ▲ Add 3 SEC ↗
68 Td Asset Management Inc 529.31K +26.1% $9.60M 0.0% ▲ Add 2 SEC ↗
69 Ensign Peak Advisors, Inc 496.59K 0.0% $9.00M 0.0% Held 2 SEC ↗
70 Raymond James Financial Inc 451.64K -14.8% $8.19M 0.0% ▼ Trim 2 SEC ↗
71 Raymond James Financial Inc 451.64K -14.8% $8.19M 0.0% ▼ Trim 2 SEC ↗
72 Clearbridge Investments, LLC 403.23K -1.1% $7.31M 0.0% ▼ Trim 2 SEC ↗
73 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
74 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
75 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
76 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
77 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
78 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
79 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
80 Bank of New York Mellon Corp 401.62K +13.6% $7.28M 0.0% ▲ Add 2 SEC ↗
81 UBS Group AG 380.56K -0.1% $6.90M 0.0% ▼ Trim 2 SEC ↗
82 UBS Group AG 380.56K -0.1% $6.90M 0.0% ▼ Trim 2 SEC ↗
83 UBS Group AG 380.56K -0.1% $6.90M 0.0% ▼ Trim 2 SEC ↗
84 New York State Common Retirement… 333.50K +320.8% $6.05M 0.0% ▲ Add 2 SEC ↗
85 Fisher Asset Management 323.05K +29.2% $5.86M 0.0% ▲ Add 2 SEC ↗
86 Qube Research & Technologies Ltd 253.15K -38.6% $4.59M 0.0% ▼ Trim 2 SEC ↗
87 Invesco Ltd. 248.94K +80.8% $4.51M 0.0% ▲ Add 2 SEC ↗
88 Invesco Ltd. 248.94K +80.8% $4.51M 0.0% ▲ Add 2 SEC ↗
89 Invesco Ltd. 248.94K +80.8% $4.51M 0.0% ▲ Add 2 SEC ↗
90 Invesco Ltd. 248.94K +80.8% $4.51M 0.0% ▲ Add 2 SEC ↗
91 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
92 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
93 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
94 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
95 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
96 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
97 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
98 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
99 UBS AM, a distinct business unit of… 239.28K +11.6% $4.34M 0.0% ▲ Add 2 SEC ↗
100 Swiss National Bank 228.10K +2.5% $4.14M 0.0% ▲ Add 2 SEC ↗

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

New buyers

No new tracked buyers this quarter.

Exited

Federated Hermes, Inc. $9.09M was 0.0%
Balyasny Asset Management L.P. $8.47M was 0.0%
Point72 Asset Management $6.44M was 0.0%
Canada Pension Plan… $5.56M was 0.0%
American Century Companies Inc $3.29M was 0.0%
Neuberger Berman Group LLC $3.24M was 0.0%
Baird Financial Group, Inc. $2.02M was 0.0%
Hrt Financial Lp $1.47M was 0.0%
Jane Street Group, Llc $1.38M was 0.0%
Norges Bank $964,680 was 0.0%
Daiwa Securities Group Inc. $8,000 was 0.0%
Optiver Holding B.V. $7,726 was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 226 holders, 184.59M shares, $2.74B 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.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 14 Rhodes Jason P

Director · 1.36M sh · $33.99M

Aug 14 Rhodes Jason P

Director · 478.38K sh · $11.96M

Aug 14 Rhodes Jason P

Director · 322.46K sh · $8.06M

Aug 13 Rhodes Jason P

Director · 63.64K sh · $1.67M

Aug 13 Lucera Erick

Officer · 1.80K sh · $47,225

Aug 13 Kerr Douglas

Officer · 1.56K sh · $40,892

Aug 13 Cox John

Officer, Director · 4.99K sh · $131,032

Aug 13 Friedl-Naderer Johanna

Officer · 226 sh · $5,939

Aug 13 Rhodes Jason P

Director · 268.35K sh · $7.03M

Aug 13 Rhodes Jason P

Director · 94.42K sh · $2.47M

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 13 SC 13G/A — Janus Henderson Group Ltd.

View original SEC filing ↗

Aug 13 SC 13G/A — Atlas Venture Fund XI, L.P.

View original SEC filing ↗

Aug 06 SC 13G/A — FMR LLC

View original SEC filing ↗

Jul 28 SC 13G/A — BlackRock, Inc.

View original SEC filing ↗

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