MarketPeel
Insider Trading Intelligence
Pricing
…
PO

Patrick O'brien

ARWR
COO AND GENERAL COUNSEL · ARROWHEAD PHARMACEUTICALS, INC. · CIK 0001627183
FILING MIX · LIFETIME14%/86%
BUYS
10
SELLS
62
TOTAL VALUE
$19.73M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
473,828
AVG SELL PX
$60.06
TRADE KIND
SHOWING 72 / 72
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
47 backtested trades · 8 horizons · 27 pending
Forward-return performance of every backtestable P/S trade by Patrick O'brien, 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
7d47+51.06%+0.19%+1.28%-1.09%-0.68%-0.74
14d47+53.19%-2.08%+0.72%-2.79%-2.96%-2.40
30d47+61.70%-3.52%+2.74%-6.26%-13.13%-3.39
60d47+89.36%-14.33%+0.96%-15.29%-15.37%-9.13
90d47+100.00%-22.58%+1.11%-23.69%-29.10%-10.27
180d47+74.47%-7.07%+9.04%-16.11%-23.11%-4.46
1y47(12 pending)+82.86%-1.53%+17.28%-18.80%-41.95%-1.35
2y47(15 pending)+65.63%-8.06%+35.30%-43.36%-52.44%-4.11
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
ARWR · 473,828 shares · as of Jan 6, 2026
0141,096282,193423,289564,3852020202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 10 buys / 62 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
75,000——547,408Jan 6, 2026Jan 8, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
540——474,368Jan 6, 2026Jan 8, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
540——473,288Jan 6, 2026Jan 8, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
440——472,408Jan 6, 2026Jan 8, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
440——472,848Jan 6, 2026Jan 8, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
540——473,828Jan 6, 2026Jan 8, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
900$62.25$56.0K483,163Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
313$68.00$21.3K484,663Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
2,700$64.44$174.0K485,876Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
46$68.00$3.1K474,908Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
11,842$63.84$756.0K488,576Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
13,451$62.96$846.9K500,418Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
6,164$62.23$383.6K513,869Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
900$66.01$59.4K484,976Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
5,873$62.91$369.5K477,290Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
4,368$61.20$267.3K520,033Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
2,336$64.04$149.6K474,954Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
600$61.12$36.7K484,063Jan 5, 2026Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
560——526,081Dec 31, 2025Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
560——525,521Dec 31, 2025Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
560——524,961Dec 31, 2025Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
560——524,401Dec 31, 2025Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
560——526,641Dec 31, 2025Jan 5, 2026 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
8,000$19.69$157.5K527,201Jan 7, 2025Jan 7, 2025 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
9,526$20.10$191.5K535,201Jan 6, 2025Jan 7, 2025 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
19,658$19.69$387.1K544,727Jan 6, 2025Jan 7, 2025 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
100,000——564,385Jan 4, 2025Jan 7, 2025 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
12,741$35.65$454.2K464,385Jan 5, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
8,200$34.99$286.9K477,126Jan 5, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
1,900$33.99$64.6K485,326Jan 5, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
1,600$32.63$52.2K402,226Jan 4, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
85,000——487,226Jan 4, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
400$33.41$13.4K405,526Jan 3, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
3,849$31.83$122.5K408,726Jan 3, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
1,700$32.65$55.5K403,826Jan 3, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE10b5-1
10b5-1 plan
2,800$32.52$91.1K405,926Jan 3, 2024Jan 5, 2024 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
7,500$37.39$280.4K420,875Jan 5, 2023Jan 6, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
7,500$37.39$280.4K413,375Jan 5, 2023Jan 6, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
65,000——428,375Jan 4, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
5,286$38.58$203.9K363,945Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
270$40.53$10.9K363,375Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
70$40.80$2.9K372,125Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
300$39.55$11.9K363,645Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
2,653$37.53$99.6K378,222Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
5,527$38.54$213.0K372,695Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
2,894$37.58$108.8K369,231Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
COO and General Counsel
500$39.74$19.9K372,195Jan 3, 2023Jan 5, 2023 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASE
General Counsel
32,000$6.15$196.8K380,875Dec 21, 2022Dec 22, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
32,000——0Dec 21, 2022Dec 22, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
12,434$60.49$752.1K368,941Jan 5, 2022Jan 7, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
10,350$61.88$640.5K358,591Jan 5, 2022Jan 7, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
316$64.35$20.3K348,875Jan 5, 2022Jan 7, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
4,400$63.75$280.5K349,191Jan 5, 2022Jan 7, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
5,000$62.49$312.4K353,591Jan 5, 2022Jan 7, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
60,000——381,375Jan 1, 2022Jan 4, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
28,000——32,000Dec 31, 2021Jan 4, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASE
General Counsel
28,000$6.15$172.2K321,375Dec 31, 2021Jan 4, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
31,255$88.08$2.75M344,159Feb 8, 2021Feb 10, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
5,436$89.66$487.4K293,375Feb 8, 2021Feb 10, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
90,000——60,000Feb 8, 2021Feb 10, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
45,348$88.88$4.03M298,811Feb 8, 2021Feb 10, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
7,961$86.72$690.4K375,414Feb 8, 2021Feb 10, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASE
General Counsel
90,000$5.22$469.8K383,375Feb 8, 2021Feb 10, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
10,615$72.27$767.1K306,618Jan 6, 2021Jan 7, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
1,142$70.78$80.8K317,233Jan 6, 2021Jan 7, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
13,243$72.67$962.4K293,375Jan 6, 2021Jan 7, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
60,000——318,375Jan 1, 2021Jan 5, 2021 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALEGRANT
Gift
800——348,075Dec 4, 2020Jan 7, 2022 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
8,931$60.43$539.7K258,475Jan 6, 2020Jan 8, 2020 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
5,594$59.61$333.5K267,406Jan 6, 2020Jan 8, 2020 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
SALE
General Counsel
100$61.02$6.1K258,375Jan 6, 2020Jan 8, 2020 ↗View →
ARWR
ARROWHEAD PHARMACEUTICALS, INC.
PURCHASEGRANT
Stock grant
70,000——273,000Jan 1, 2020Jan 3, 2020 ↗View →
Other insiders · ARWR
Loading peer insiders…
About this filer
CIK 0001627183
ROLE
COO and General Counsel
PRIMARY
ARWR
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001627183DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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