다인 테라퓨틱스, Inc.
US ˙ NasdaqGS ˙ US26818M1080

SecurityDYN / Dyne Therapeutics, Inc.
InstitutionCreative Planning
Latest Disclosed Ownership29,945 shares
Latest Disclosed Value $ 542,903
Creative Planning reports 51.46% increase in ownership of DYN / Dyne Therapeutics, Inc.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 29,945 shares of Dyne Therapeutics, Inc. (US:DYN) valued at $542,903 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,771 shares of Dyne Therapeutics, Inc.. This represents a change in shares of 51.46% during the quarter. The current value of the position is $551,287 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 DYNE THERAPEUTICS COM 26818M108 29,945 10,174 51.46 543 40.41 0.0004
2026-02-17 2025-12-31 13F DYNE THERAPEUTICS COM 26818M108 19,771 4,244 27.33 387 96.94 0.0003
2025-11-14 2025-09-30 13F DYNE THERAPEUTICS COM 26818M108 15,527 986 6.78 196 42.03 0.0002
2025-08-08 2025-06-30 13F DYNE THERAPEUTICS COM 26818M108 14,541 2,797 23.82 138 13.11 0.0001
2025-05-15 2025-03-31 13F DYNE THERAPEUTICS COM 26818M108 11,744 11,744 123 0.0001
2025-02-14 2024-12-31 13F DYNE THERAPEUTICS COM 26818M108 0 -10,605 -100.00 0 -100.00
2024-10-11 2024-09-30 13F DYNE THERAPEUTICS COM 26818M108 10,605 3,111 41.51 381 43.94 0.0004
2024-08-15 2024-06-30 13F DYNE THERAPEUTICS COM 26818M108 7,494 7,494 264 0.0003
2017-10-17 2017-09-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 0 -310 -100.00 0 -100.00 0.0000
2017-07-12 2017-06-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 310 0 0.00 0 0.0000
2017-04-07 2017-03-31 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 310 12 4.03 0 0.0000
2017-01-09 2016-12-31 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 298 -63 -17.45 0 0.0000
2016-10-12 2016-09-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 361 63 21.14 0 0.0000
2016-07-12 2016-06-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 298 -86 -22.40 0 0.0000
2016-04-08 2016-03-31 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 384 2 0.52 0 0.0000
2016-01-11 2015-12-31 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 382 0 0.00 0 0.0000
2015-10-09 2015-09-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 382 382 461.76 0 -100.00 0.0000
2015-07-09 2015-06-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 0 -394 -100.00 0 -100.00
2015-04-13 2015-03-31 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 394 -238 -37.66 2 -33.33 0.0000
2014-10-10 2014-09-30 13F DYNEGY INC NEW DEL *W EXP 10/02/201 26817R116 632 441 230.89 3 200.00 0.0000
2014-08-20 2014-06-30 13F DYNEGY INC NEW DEL *W EXP 99/99/999 26817R116 191 91 91.00 1 0.0000
2014-04-11 2014-03-31 13F DYNEGY INC NEW DEL *W EXP 99/99/999 26817R116 100 36 56.25 0 0.0000
2014-01-06 2013-12-31 13F DYNEGY INC NEW DEL *W EXP 99/99/999 26817R116 64 0 0.00 0 0.0000
2013-10-10 2013-09-30 13F DYNEGY INC NEW DEL *W EXP 99/99/999 26817R116 64 -18 -21.95 0 0.0000
2013-07-09 2013-06-30 13F DYNEGY INC NEW DEL *W EXP 99/99/999 26817R116 82 82 0 0.0000
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.