Osisko Development Corp.
US ˙ NYSE ˙ CA68828E8099

SecurityODV / Osisko Development Corp.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership603,118 shares
Latest Disclosed Value $ 1,960,134
Citadel Advisors Llc ownership in ODV / Osisko Development Corp.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 603,118 shares of Osisko Development Corp. (US:ODV) valued at $1,960,134 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 605,522 shares of Osisko Development Corp.. This represents a change in shares of -0.40% during the quarter. The current value of the position is $1,580,169 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (ODV) in the form of stock options. The firm currently holds call options representing 276,900 of underlying shares valued at $899,925 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ODV / Osisko Development Corp. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 603,118 -2,404 -0.40 1,960 -7.24 0.0003
2026-02-17 2025-12-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 605,522 -196,965 -24.54 2,113 -22.32 0.0003
2025-11-14 2025-09-30 13F OSISKO DEVELOPMENT COM NEW 68828E809 802,487 411,356 105.17 2,720 224.97 0.0004
2025-08-14 2025-06-30 13F OSISKO DEVELOPMENT COM NEW 68828E809 391,131 223,518 133.35 837 236.14 0.0001
2025-05-15 2025-03-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 167,613 65,116 63.53 250 49.10 0.0000
2025-02-14 2024-12-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 102,497 -13,375 -11.54 167 -32.11 0.0000
2024-11-14 2024-09-30 13F OSISKO DEVELOPMENT COM NEW 68828E809 115,872 86,965 300.84 247 364.15 0.0000
2024-08-14 2024-06-30 13F OSISKO DEVELOPMENT COM NEW 68828E809 28,907 -6,800 -19.04 54 -30.26 0.0000
2024-05-15 2024-03-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 35,707 -41,351 -53.66 76 -66.07 0.0000
2024-02-14 2023-12-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 77,058 49,139 176.01 224 173.17 0.0000
2023-11-14 2023-09-30 13F OSISKO DEVELOPMENT COM NEW 68828E809 27,919 -20,695 -42.57 82 -63.23 0.0000
2023-08-14 2023-06-30 13F OSISKO DEVELOPMENT COM NEW 68828E809 48,614 21,888 81.90 223 71.54 0.0000
2023-05-15 2023-03-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 26,726 9,177 52.29 131 73.33 0.0000
2023-02-14 2022-12-31 13F OSISKO DEVELOPMENT COM NEW 68828E809 17,549 17,549 75 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F OSISKO DEVELOPMENT COM NEW Call 276,900 123.13 900 107.62 n/a n/a n/a
2026-02-17 2025-12-31 13F OSISKO DEVELOPMENT COM NEW Call 124,100 161.26 433 168.94 n/a n/a n/a
2025-11-14 2025-09-30 13F OSISKO DEVELOPMENT COM NEW Call 47,500 -44.25 161 -11.54 n/a n/a n/a
2025-08-14 2025-06-30 13F OSISKO DEVELOPMENT COM NEW Call 85,200 127.81 182 230.91 n/a n/a n/a
2025-05-15 2025-03-31 13F OSISKO DEVELOPMENT COM NEW Call 37,400 -44.92 56 -50.00 n/a n/a n/a
2025-02-14 2024-12-31 13F OSISKO DEVELOPMENT COM NEW Call 67,900 92.90 111 48.65 n/a n/a n/a
2024-11-14 2024-09-30 13F OSISKO DEVELOPMENT COM NEW Call 35,200 203.45 75 252.38 n/a n/a n/a
2024-08-14 2024-06-30 13F OSISKO DEVELOPMENT COM NEW Call 11,600 -5.69 22 -19.23 n/a n/a n/a
2024-05-15 2024-03-31 13F OSISKO DEVELOPMENT COM NEW Call 12,300 43.02 26 4.00 n/a n/a n/a
2024-02-14 2023-12-31 13F OSISKO DEVELOPMENT COM NEW Call 8,600 48.28 25 47.06 n/a n/a n/a
2023-11-14 2023-09-30 13F OSISKO DEVELOPMENT COM NEW Call 5,800 -80.98 17 -87.77 n/a n/a n/a
2023-08-14 2023-06-30 13F OSISKO DEVELOPMENT COM NEW Call 30,500 221.05 140 202.17 n/a n/a n/a
2023-05-15 2023-03-31 13F OSISKO DEVELOPMENT COM NEW Call 9,500 1,257.14 47 1,433.33 n/a n/a n/a
2023-02-14 2022-12-31 13F OSISKO DEVELOPMENT COM NEW Call 700 3 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F OSISKO DEVELOPMENT COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F OSISKO DEVELOPMENT COM NEW Put 16,600 58 n/a n/a n/a
2025-11-14 2025-09-30 13F OSISKO DEVELOPMENT COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F OSISKO DEVELOPMENT COM NEW Put 15,500 142.19 33 266.67 n/a n/a n/a
2025-05-15 2025-03-31 13F OSISKO DEVELOPMENT COM NEW Put 6,400 -62.35 10 -66.67 n/a n/a n/a
2025-02-14 2024-12-31 13F OSISKO DEVELOPMENT COM NEW Put 17,000 102.38 28 58.82 n/a n/a n/a
2024-11-14 2024-09-30 13F OSISKO DEVELOPMENT COM NEW Put 8,400 37.70 18 54.55 n/a n/a n/a
2024-08-14 2024-06-30 13F OSISKO DEVELOPMENT COM NEW Put 6,100 -3.17 11 -15.38 n/a n/a n/a
2024-05-15 2024-03-31 13F OSISKO DEVELOPMENT COM NEW Put 6,300 5.00 13 -23.53 n/a n/a n/a
2024-02-14 2023-12-31 13F OSISKO DEVELOPMENT COM NEW Put 6,000 -38.14 17 -39.29 n/a n/a n/a
2023-11-14 2023-09-30 13F OSISKO DEVELOPMENT COM NEW Put 9,700 -51.74 29 -69.57 n/a n/a n/a
2023-08-14 2023-06-30 13F OSISKO DEVELOPMENT COM NEW Put 20,100 79.46 92 70.37 n/a n/a n/a
2023-05-15 2023-03-31 13F OSISKO DEVELOPMENT COM NEW Put 11,200 15.46 55 31.71 n/a n/a n/a
2023-02-14 2022-12-31 13F OSISKO DEVELOPMENT COM NEW Put 9,700 42 n/a n/a n/a
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.