Vault-13

OSISKO DEVELOPMENT CORP

COM NEW · CUSIP 68828E809

89 institutional holders +1 vs Q1 2026
146,158,962146.2m shares reported held*
$358.7mreported value*
16 new 35 added 18 reduced 15 sold out net bought ≈ $25.9m (+10.5m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $2.45. Options: 9 managers hold calls ($73.3m notional), 2 hold puts ($233.2k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 18Q4 22: 22Q1 23: 29Q2 23: 29Q3 23: 33Q4 23: 35Q1 24: 30Q2 24: 31Q3 24: 40Q4 24: 44Q1 25: 48Q2 25: 56Q3 25: 74Q4 25: 98Q1 26: 88Q2 26: 8989Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202218
Q4 202222
Q1 202329
Q2 202329
Q3 202333
Q4 202335
Q1 202430
Q2 202431
Q3 202440
Q4 202444
Q1 202548
Q2 202556
Q3 202574
Q4 202598
Q1 202688
Q2 202689

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q3 24: 19 bought or addedQ3 24: 10 cut or sold outQ4 24: 21 bought or addedQ4 24: 20 cut or sold outQ4 24Q1 25: 23 bought or addedQ1 25: 17 cut or sold outQ2 25: 28 bought or addedQ2 25: 19 cut or sold outQ2 25Q3 25: 49 bought or addedQ3 25: 14 cut or sold outQ4 25: 62 bought or addedQ4 25: 23 cut or sold outQ4 25Q1 26: 55 bought or addedQ1 26: 44 cut or sold outQ2 26: 51 bought or addedQ2 26: 33 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20241910
Q4 20242120
Q1 20252317
Q2 20252819
Q3 20254914
Q4 20256223
Q1 20265544
Q2 20265133

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$20m$40m$60m$80mQ3 25 calls: $3.3mQ3 25 puts: $762.0kQ3 25P/C 0.23Q4 25 calls: $7.4mQ4 25 puts: $1.8mQ4 25P/C 0.25Q1 26 calls: $8.1mQ1 26 puts: $562.2kQ1 26P/C 0.07Q2 26 calls: $73.3mQ2 26 puts: $233.2kQ2 26P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2025$3.3m$762.0k0.23
Q4 2025$7.4m$1.8m0.25
Q1 2026$8.1m$562.2k0.07
Q2 2026$73.3m$233.2k0.00

Biggest buyers

UBS Group AG Added +10,308,084+10.3m
MIZUHO MARKETS AMERICAS LLC New +5,780,238+5.8m
BANK OF MONTREAL /CAN/ Added +4,524,042+4.5m
Alyeska Investment Group, L.P. New +2,916,840+2.9m
Arbiter Partners Capital Management LLC Added +2,237,496+2.2m
Ruffer LLP Added +1,633,601+1.6m
Man Group plc Added +1,337,310+1.3m
BlackRock, Inc. Added +1,157,438+1.2m
SCHRODER INVESTMENT MANAGEMENT GROUP Added +1,006,070+1.0m
FIL Ltd Added +819,004+819.0k

Biggest sellers

FRANKLIN RESOURCES INC Sold out -10,353,948-10.4m
Anson Funds Management LP Sold out -7,724,416-7.7m
SPROTT INC. Reduced -1,117,717-1.1m
PRINCIPAL FINANCIAL GROUP INC Reduced -871,399-871.4k
Thomist Capital Management, LP Sold out -790,000-790.0k
Invenomic Capital Management LP Reduced -778,153-778.2k
Groupe la Francaise Reduced -675,000-675.0k
Walleye Capital LLC Sold out -620,146-620.1k
Nokomis Capital, L.L.C. Reduced -482,509-482.5k
GABELLI FUNDS LLC Sold out -400,000-400.0k

Biggest calls

UBS Group AG New $70.3m28.6m shares
Caption Management, LLC Unchanged $984.0k400.0k shares
JANE STREET GROUP, LLC Reduced $586.4k241.3k shares
CITADEL ADVISORS LLC Reduced $476.5k193.7k shares
GROUP ONE TRADING LLC Reduced $319.3k129.8k shares
IMC-Chicago, LLC Reduced $225.8k91.8k shares
SIMPLEX TRADING, LLC Added $222.1k90.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $113.9k46.3k shares
BANK OF MONTREAL /CAN/ Reduced $70.5k29.0k shares

Biggest puts

CITADEL ADVISORS LLC New $161.1k65.5k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $72.1k29.3k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Double Zero Capital, LP 13D · may seek influence no change · filed 2026-05-28 19.9% no change 63.6m≈ $156.5m 2026-05-28
Condire Management, LP 13D · may seek influence no change · filed 2025-08-19
Stated purposeThe securities covered by this Schedule 13D were acquired for investment purposes. The Reporting Persons have no present plans or proposals that relate to, or that would result in, any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. The Reporting Persons retain the right to change their investment intent, and may, from time to time, acquire additional Shares or other securities of the Issuer, or sell or otherwise dispose of (or enter into plans or arrangements to sell or otherwise dispose of), all or part of the Shares or other securities of the Issuer, if any, beneficially owned by them, in any manner permitted by law. Full filing
 9.9% no change 23.9m≈ $58.7m 2025-08-19

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Condire Management, LP 6.54% of their portfolio DALLAS, TX 25,050,98025.1m $61.6m $61.6m 6.54% Unchanged
2 UBS Group AG 0.00% of their portfolio ZURICH, V8 10,549,39110.5m $26.0m $26.0m 0.00% Added +10.3m +10,308,084
3 VAN ECK ASSOCIATES CORP 0.01% of their portfolio NEW YORK, NY 9,712,5609.7m $23.9m $23.9m 0.01% Reduced -272.0k -271,978
4 Amundi 0.00% of their portfolio Paris, I0 8,350,0008.3m $20.5m $20.5m 0.00% Added +300.0k +300,000
5 Woodline Partners LP 0.06% of their portfolio San Francisco, CA 8,246,3278.2m $20.3m $20.3m 0.06% Added +572.0k +572,039
6 FIL Ltd 0.01% of their portfolio HAMILTON, D0 7,370,3047.4m $18.1m $18.1m 0.01% Added +819.0k +819,004
7 BANK OF MONTREAL /CAN/ 0.01% of their portfolio TORONTO, A6 7,156,0597.2m $17.4m $17.4m 0.01% Added +4.5m +4,524,042
8 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 6,532,0376.5m $15.9m $15.9m 0.01% Reduced -871.4k -871,399
9 TEACHER RETIREMENT SYSTEM OF TEXAS 0.04% of their portfolio AUSTIN, TX 6,400,0006.4m $15.7m $15.7m 0.04% Unchanged
10 SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio London, X0 6,197,0206.2m $15.1m $15.1m 0.01% Added +1.0m +1,006,070
11 MIZUHO MARKETS AMERICAS LLC 0.25% of their portfolio NEW YORK, NY 5,780,2385.8m $14.2m $14.2m 0.25% New
12 Arbiter Partners Capital Management LLC 2.95% of their portfolio NEW YORK, NY 4,324,9924.3m $10.6m $10.6m 2.95% Added +2.2m +2,237,496
13 GMT Capital Corp 0.41% of their portfolio ATLANTA, GA 3,215,3333.2m $7.9m $7.9m 0.41% Added +87.7k +87,733
14 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 2,991,1263.0m $7.4m $7.4m 0.00% Reduced -54.4k -54,420
15 Alyeska Investment Group, L.P. 0.02% of their portfolio CHICAGO, IL 2,916,8402.9m $7.2m $7.2m 0.02% New
16 Invenomic Capital Management LP 0.41% of their portfolio BOSTON, MA 2,785,6332.8m $6.9m $6.9m 0.41% Reduced -778.2k -778,153
17 Ruffer LLP 0.23% of their portfolio LONDON, X0 2,591,1802.6m $6.4m $6.4m 0.23% Added +1.6m +1,633,601
18 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2,449,7192.4m $6.0m $6.0m 0.00% Added +93.6k +93,555
19 Man Group plc 0.01% of their portfolio LONDON, X0 2,400,7842.4m $5.9m $5.9m 0.01% Added +1.3m +1,337,310
20 BlackRock, Inc. 0.00% of their portfolio New York, NY 1,831,5001.8m $4.5m $4.5m 0.00% Added +1.2m +1,157,438
21 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,826,3501.8m $4.5m $4.5m 0.00% Reduced -109.1k -109,135
22 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 1,802,6541.8m $4.4m $4.4m 0.00% Added +87.4k +87,426
23 Groupe la Francaise 0.05% of their portfolio PARIS, I0 1,525,0001.5m $3.7m $3.7m 0.05% Reduced -675.0k -675,000
24 Nokomis Capital, L.L.C. 1.37% of their portfolio DALLAS, TX 1,517,4911.5m $3.7m $3.7m 1.37% Reduced -482.5k -482,509
25 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 1,207,2551.2m $3.0m $3.0m 0.00% Unchanged
26 Mudita Advisors LLP 0.56% of their portfolio London, X0 1,100,0001.1m $2.7m $2.7m 0.56% Unchanged
27 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 1,032,1331.0m $2.5m $2.5m 0.00% Reduced -65.9k -65,888
28 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 867,474867.5k $2.1m $2.1m 0.00% Added +407.6k +407,574
29 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 833,040833.0k $2.0m $2.0m 0.00% Added +574.6k +574,648
30 Pekin Hardy Strauss, Inc. 0.14% of their portfolio CHICAGO, IL 634,500634.5k $1.6m $1.6m 0.14% Added +183.5k +183,500
31 Jump Financial, LLC 0.01% of their portfolio Chicago, IL 617,384617.4k $1.5m $1.5m 0.01% Added +381.5k +381,542
32 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 560,514560.5k $1.4m $1.4m 0.00% Reduced -42.6k -42,604
33 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 545,714545.7k $1.3m $1.3m 0.00% Added +53.7k +53,747
34 ARMOR ADVISORS, L.L.C. 1.05% of their portfolio NEW YORK, NY 522,172522.2k $1.3m $1.3m 1.05% Added +169.2k +169,172
35 ZAZOVE ASSOCIATES LLC 0.09% of their portfolio INCLINE VILLAGE, NV 450,000450.0k $1.1m $1.1m 0.09% Reduced -70.0k -70,000
36 EDMOND DE ROTHSCHILD HOLDING S.A. 0.01% of their portfolio CHAMBESY, V8 427,529427.5k $1.0m $1.0m 0.01% Added +136.0k +135,987
37 Jefferies Financial Group Inc. 0.01% of their portfolio NEW YORK, NY 400,000400.0k $984.0k $984.0k 0.01% New
38 TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio STAMFORD, CT 334,087334.1k $821.9k $821.9k 0.00% New
39 SPROTT INC. 0.02% of their portfolio TORONTO, A6 279,971280.0k $688.7k $688.7k 0.02% Reduced -1.1m -1,117,717
40 Cardinal Point Capital Management ULC 0.04% of their portfolio TORONTO, A6 271,550271.6k $659.3k $659.3k 0.04% Added +73.5k +73,550
41 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 252,368252.4k $620.8k $620.8k 0.00% Reduced -228.8k -228,818
42 U S GLOBAL INVESTORS INC 0.06% of their portfolio SAN ANTONIO, TX 250,000250.0k $606.9k $606.9k 0.06% Unchanged
43 Pinnacle Wealth Management Group, Inc. 0.28% of their portfolio PLYMOUTH, MI 240,081240.1k $590.6k $590.6k 0.28% Added +2.0k +1,998
44 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 193,872193.9k $476.9k $476.9k 0.01% Added +13.7k +13,670
45 Aquatic Capital Management LLC 0.01% of their portfolio CHICAGO, IL 169,887169.9k $417.9k $417.9k 0.01% New
46 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 145,189145.2k $357.2k $357.2k 0.00% Added +72.4k +72,378
47 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 114,928114.9k $282.7k $282.7k 0.00% Added +72.3k +72,346
48 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 108,522108.5k $267.0k $267.0k 0.00% New
49 Corient Private Wealth LP 0.00% of their portfolio MIAMI, FL 98,71098.7k $242.8k $242.8k 0.00% Added +28.7k +28,667
50 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 98,50098.5k $232.2k $232.2k 0.00% Unchanged
51 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 95,70095.7k $235.4k $235.4k 0.00% Added +12.2k +12,200
52 Quantbot Technologies LP 0.01% of their portfolio NEW YORK, NY 87,46287.5k $215.2k $215.2k 0.01% New
53 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 60,34560.3k $148.4k $148.4k 0.00% Reduced -373.0k -373,031
54 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 58,07058.1k $142.9k $142.9k 0.00% New
55 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 47,50047.5k $116.8k $116.8k 0.00% Added +14.0k +14,000
56 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 37,00037.0k $91.0k $91.0k 0.00% Unchanged
57 Freestone Capital Holdings, LLC 0.00% of their portfolio Seattle, WA 36,07536.1k $88.7k $88.7k 0.00% New
58 Modera Wealth Management, LLC 0.00% of their portfolio WESTWOOD, NJ 35,21835.2k $86.6k $86.6k 0.00% Unchanged
59 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 35,21635.2k $86.6k $86.6k 0.00% Added +550 +550
60 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 31,49331.5k $77.5k $77.5k 0.00% Reduced -358.5k -358,520
61 SUSQUEHANNA ADVISORS GROUP, INC. 0.00% of their portfolio BALA CYNWYD, PA 30,05130.1k $73.9k $73.9k 0.00% New
62 NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio MONTREAL, A8 28,46728.5k $47.0k $47.0k 0.00% Added +12.5k +12,459
63 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 28,42828.4k $69.9k $69.9k 0.00% Added +18.5k +18,512
64 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 27,35027.4k $67.3k $67.3k 0.00% Reduced -7.8k -7,800
65 Aigen Investment Management, LP 0.02% of their portfolio NEW YORK, NY 25,97026.0k $63.9k $63.9k 0.02% New
66 SALEM INVESTMENT COUNSELORS INC 0.00% of their portfolio WINSTON-SALEM, NC 23,90023.9k $58.8k $58.8k 0.00% Added +10.0k +10,000
67 PKS Advisory Services, LLC 0.01% of their portfolio ALBANY, NY 22,00022.0k $54.1k $54.1k 0.01% New
68 SeaBridge Investment Advisors LLC 0.01% of their portfolio SUMMIT, NJ 18,00018.0k $44.3k $44.3k 0.01% Unchanged
69 PROFUND ADVISORS LLC 0.00% of their portfolio BETHESDA, MD 16,98417.0k $41.8k $41.8k 0.00% Reduced -2.3k -2,331
70 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 16,90016.9k $41.6k $41.6k 0.00% New
71 Murphy Pohlad Asset Management LLC 0.01% of their portfolio EDEN PRAIRIE, MN 16,00016.0k $39.4k $39.4k 0.01% New
72 NORDEN GROUP LLC 0.00% of their portfolio PROVO, UT 15,73915.7k $38.7k $38.7k 0.00% Unchanged
73 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 15,00015.0k $36.9k $36.9k 0.00% Unchanged
74 CIBC WORLD MARKET INC. 0.00% of their portfolio TORONTO, A6 13,17713.2k $32.0k $32.0k 0.00% Added +11 +11
75 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 11,22011.2k $27.6k $27.6k 0.00% Reduced -71.4k -71,376
76 SIH Partners, LLLP 0.00% of their portfolio Wilmington, DE 10,60310.6k $26.1k $26.1k 0.00% New
77 SCOTIA CAPITAL INC. 0.00% of their portfolio TORONTO, A6 10,00010.0k $24.1k $24.1k 0.00% Unchanged
78 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 9,9319.9k $24.4k $24.4k 0.00% Added +3.8k +3,800
79 Rockefeller Capital Management L.P. 0.00% of their portfolio NEW YORK, NY 5,0005.0k $12.3k $12.3k 0.00% Unchanged
80 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 2,9042.9k $7.1k $7.1k 0.00% Added +2.5k +2,526
81 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 2,6652.7k $6.6k $6.6k 0.00% Unchanged
82 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 1,4591.5k $3.6k $3.6k 0.00% Reduced -20 -20
83 Hurley Capital, LLC 0.00% of their portfolio NEW YORK, NY 1,4121.4k $3.5k $3.5k 0.00% Unchanged
84 Pacifica Partners Inc. 0.00% of their portfolio SURREY, Z4 1,0001.0k $2.4k $2.4k 0.00% Unchanged
85 TD Waterhouse Canada Inc. 0.00% of their portfolio TORONTO, A6 750750 $1.9k $1.9k 0.00% Unchanged
86 Gen-Wealth Partners Inc 0.00% of their portfolio ZEELAND, MI 500500 $1.2k $1.2k 0.00% Unchanged
87 SJS Investment Consulting Inc. 0.00% of their portfolio SYLVANIA, OH 460460 $1.1k $1.1k 0.00% Unchanged
88 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 100100 $246 $246 0.00% Unchanged
89 Elequin Capital, LP 0.00% of their portfolio NEW YORK, NY 1515 $37 $37 0.00% New