MarketPeel
Insider Trading Intelligence
Pricing
…
JB

Joshua T. Brumm

DYN
SEE REMARKS · DYNE THERAPEUTICS, INC. · CIK 0001528826
FILING MIX · LIFETIME33%/67%
BUYS
28
SELLS
57
TOTAL VALUE
$32.29M
COMPANIES
2
ACTIVE SINCE
Sep 2020
HOLDINGS NOW
819,210
AVG SELL PX
$18.94
TRADE KIND
SHOWING 85 / 85
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
30 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Joshua T. Brumm, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d30+43.33%-0.26%+0.88%-1.14%+1.05%-0.56
14d30+63.33%-2.85%+1.18%-4.03%-3.02%-2.06
30d30+46.67%+0.32%+2.63%-2.31%+0.63%-0.64
60d30+53.33%+7.94%+3.75%+4.19%-3.68%0.70
90d30+33.33%+17.87%+5.35%+12.51%+12.98%2.00
180d30+30.00%+43.19%+9.93%+33.26%+24.38%2.98
1y30+56.67%+27.51%+17.75%+9.76%-14.36%0.61
2y30+56.67%+12.46%+39.98%-27.52%-49.35%-2.53
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
DYN · 537,998 shares · as of Mar 11, 2024
0229,432458,864688,296917,7282021202220232024SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 28 buys / 57 sellsCOVERAGE · 24 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CBIO
CRESCENT BIOPHARMA, INC.
SALE10b5-1
10b5-1 plan
42,305$17.99$761.1K281,212Jun 22, 2026Jun 23, 2026 ↗View →
CBIO
CRESCENT BIOPHARMA, INC.
PURCHASEGRANT
Stock grant
45,117——313,517Dec 15, 2025Dec 17, 2025 ↗View →
CBIO
CRESCENT BIOPHARMA, INC.
PURCHASEGRANT
Stock grant
10,000——323,517Dec 15, 2025Dec 17, 2025 ↗View →
CBIO
CRESCENT BIOPHARMA, INC.
PURCHASEGRANT
Stock grant
180,467——180,467Dec 15, 2025Dec 17, 2025 ↗View →
CBIO
CRESCENT BIOPHARMA, INC.
PURCHASEGRANT
Stock grant
345,672——345,672Dec 8, 2025Dec 10, 2025 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
40,072$25.42$1.02M564,313Mar 11, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
50,000——83,269Mar 11, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
7,769$26.12$202.9K546,616Mar 11, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
50,000$5.54$277.0K604,385Mar 11, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
9,928$26.10$259.1K554,385Mar 11, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
8,618$25.93$223.5K537,998Mar 11, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
153,931$5.54$852.8K708,316Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
209,412$5.54$1.16M917,728Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
160,670$26.72$4.29M554,820Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
153,931——0Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
209,412——133,269Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
202,238$25.30$5.12M715,490Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
435$27.38$11.9K554,385Mar 8, 2024Mar 12, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
9,086$25.85$234.9K554,385Mar 7, 2024Mar 11, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
18,976$28.25$536.1K638,975Mar 1, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
1,414$29.70$42.0K563,471Mar 1, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
94,480$5.54$523.4K657,951Mar 1, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
57,843——44,500Mar 1, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
36,637——342,681Mar 1, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
74,090$29.23$2.17M564,885Mar 1, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
5,520——102,343Feb 29, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
5,520$5.54$30.6K568,991Feb 29, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
5,520$27.50$151.8K563,471Feb 29, 2024Mar 1, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
1,500——563,471Jan 29, 2024Jan 31, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
20,000——564,971Jan 29, 2024Jan 31, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
200,000——107,863Jan 4, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
180,235$18.40$3.32M623,272Jan 4, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
38,301$19.05$729.6K584,971Jan 4, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
200,000$5.54$1.11M803,507Jan 4, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
18,536——0Jan 4, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
18,536$1.03$19.1K603,507Jan 4, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
19,775$19.03$376.3K600,997Jan 3, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
CEO & President
51,183——18,536Jan 3, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
CEO & President
51,183$1.03$52.7K636,154Jan 3, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
16,026$20.50$328.5K584,971Jan 3, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
15,382$18.34$282.1K620,772Jan 3, 2024Jan 4, 2024 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
7,585$10.72$81.3K584,971Dec 11, 2023Dec 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
139,750——139,750Nov 15, 2023Nov 16, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
358,877——592,556Nov 15, 2023Nov 16, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
12,032$9.41$113.2K233,679Sep 18, 2023Sep 20, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
7,672$10.41$79.9K245,711Sep 12, 2023Sep 13, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
See Remarks
171,360$1.03$176.5K441,131Jun 12, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
187,748$12.61$2.37M253,383Jun 12, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
171,360——69,719Jun 12, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
76,582$13.34$1.02M269,771Jun 9, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
See Remarks
76,582$1.03$78.9K346,353Jun 9, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
76,582——241,079Jun 9, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
1,800——300,683Jun 8, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
30,088——317,661Jun 8, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
20,000——302,483Jun 8, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
See Remarks
30,088$1.03$31.0K330,771Jun 8, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
14,189$13.47$191.1K269,771Jun 8, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
46,811$13.15$615.6K283,960Jun 8, 2023Jun 12, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
7,318$13.33$97.5K322,483Mar 14, 2023Mar 15, 2023 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
3,322$10.87$36.1K329,801Dec 12, 2022Dec 13, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
222,000——222,000Dec 9, 2022Dec 13, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
144,000——333,123Dec 9, 2022Dec 13, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
2,500——189,123Oct 10, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
13,000——191,623Oct 10, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
See Remarks
195,800$1.03$201.7K400,423Oct 10, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
195,800——347,749Oct 10, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
195,800$12.46$2.44M204,623Oct 10, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
14,200——543,549Oct 7, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASE
See Remarks
14,200$1.03$14.6K218,823Oct 7, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
14,200$13.37$189.9K204,623Oct 7, 2022Oct 11, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
11,836$13.70$162.2K204,623Sep 20, 2022Sep 21, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
3,480$14.05$48.9K216,459Sep 15, 2022Sep 15, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
10,963$8.24$90.3K219,939Jul 6, 2022Jul 6, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
24,118——230,902Jul 5, 2022Jul 6, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
78,386——78,386Jul 5, 2022Jul 6, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
153,931——153,931Jul 5, 2022Jul 6, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
3,540$4.95$17.5K206,784Jun 14, 2022Jun 15, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
3,384$8.73$29.5K210,324Mar 11, 2022Mar 14, 2022 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
177,285——177,285Dec 10, 2021Dec 14, 2021 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
118,190——213,708Dec 10, 2021Dec 14, 2021 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALEGRANT
Gift
3,500——95,518Oct 1, 2021Oct 4, 2021 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
4,584$16.11$73.8K99,018Sep 21, 2021Sep 22, 2021 ↗View →
DYN
DYNE THERAPEUTICS, INC.
SALE
See Remarks
3,425$15.61$53.5K103,602Sep 20, 2021Sep 22, 2021 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
107,027——107,027Sep 17, 2020Sep 18, 2020 ↗View →
DYN
DYNE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
320,781——320,781Sep 16, 2020Sep 18, 2020 ↗View →
Other insiders · DYN
Loading peer insiders…
About this filer
CIK 0001528826
ROLE
See Remarks
PRIMARY
DYN
COMPANIES
2
ACTIVE SINCE
Sep 2020
MARKETPEEL · /INSIDER/0001528826DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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