AspenBio Pharma Inc

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AspenBio Pharma Inc
TickerRIOT
CIK #0001167419
CUSIP767292105
SectorLife Sciences - In Vitro & In Vivo Diagnostic Substances
Address1585 S Perry Street, Castle Rock, CO 80104
Source [EDGAR]
CIK Filing 2011 - 2025
[0001167419] 10-K
[0001167419] 10-Q
[0001167419] 3
[0001167419] 4
[0001167419] 5
[0001167419] 8-K
[0001167419] D
[0001167419] SC 13D
[0001167419] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Goldman Sachs Group Inc Riot Platforms Inc [2025-05-12] 0.0
Riot Platforms Inc Bitfarms Ltd [2024-05-28] 0.25
BlackRock Inc Riot Platforms Inc [2023-02-03] 6.8
Vanguard Group Inc Riot Blockchain Inc [2022-02-10] 8.61
Northern Data AG Riot Blockchain Inc [2021-05-27] 12.3
Susquehanna Securities LLC Riot Blockchain Inc [2021-02-16] 5.4
CALC III LP Riot Blockchain Inc [2019-04-18] 4.4
CALC III LP Riot Blockchain Inc [2018-02-14] 5.6
Susquehanna Securities Riot Blockchain Inc [2018-02-09] 6.0
Hudson Bay Capital Management LP Riot Blockchain Inc [2018-02-02] 5.73
Groussman Mark Riot Blockchain Inc [2017-10-13] 5.93
Honig Jonathan Riot Blockchain Inc [2017-10-11] 0.0
Northurst Inc Bioptix Inc [2017-08-04] 0.99
Peierls E Jeffrey Bioptix Inc [2017-02-10] 7.93
Remeditex Ventures LLC Venaxis Inc [2016-09-19] 6.0
Defrancesco Catherine Johanna Defrancesco Venaxis Inc [2016-09-12] 7.49
Honig Barry C Venaxis Inc [2016-09-08] 0.6
MGT Capital Investments Inc Venaxis Inc [2016-05-18] 2.89
Honig Barry C Venaxis Inc [2016-04-04] 8.65
[2013-05-30] None
Sophrosyne Capital LLC AspenBio Pharma Inc [2012-10-09] 8.95
Perkins Capital Management Inc AspenBio Pharma Inc [2012-01-11] 11.8
Sabby Management LLC AspenBio Pharma Inc [2012-01-09] 8.1
Form 3/4/5 Filer 2011 - 2025
Les Jason
Riot Platforms, Inc.
Leverton Jaime
Mouton Douglas
Turner Michael John
D'Ambrosio Lance Varro
Werner Ryan D.
Howell Stephen Mitchell Jr.
Yee Colin M.
Gibbs Jonathan
Cho Hannah
Marleau Hubert
Yi Soo il Benjamin
Chung Jason
Jackman William Richard
Harris Chad Everett
McGonegal Jeffrey
Theriot Lyle Joseph
Brooks Megan M.
Northern Data AG
Mancini Remo
Chang Robby Sai Kit
Ensey Christopher
Kaplan Andrew J
Robertsen Daniel Stefan
O'Rourke John R. III
Beeghley Michael Martin
So Eric
Dai Mike
Lundy Stephen T.
Honig Barry C
Routh Michael W
Whitcomb Richard J.
Evans Susan A
Faulkner Daryl
Schoettler Gail
Welch David E
Williams Stephen Alaric
Landon John H
Hurd Donald R
Pusey Gregory
Merson Michael R
Miller Erik
Hepler Douglas I
Ratain Mark J
Form 13F Holdings
Firm Period DFND Voting Shares
Vanguard Group Inc [2025-06-30] SOLE 0 38,731,951
BlackRock, Inc. [2025-06-30] SOLE 27,924,924 28,888,510
Susquehanna International Group LLP [2025-06-30] OTR 3,018,228 20,506,528
Citadel Advisors LLC [2025-06-30] DFND 9,894,811 9,894,811
Mizuho Markets Americas LLC [2025-06-30] DFND 106,353,645 9,411,827
Geode Capital Management LLC [2025-06-30] DFND 8,694,084 8,694,084
State Street Corp [2025-06-30] DFND 7,166,194 8,563,386
D. E. Shaw & Co., Inc. [2025-06-30] DFND 5,455,200 5,455,200
Jane Street Group LLC [2025-06-30] DFND 2,675,642 5,278,142
Value Aligned Research Advisors LLC [2025-06-30] SOLE 5,141,221 5,141,221
Azora Capital LP [2025-06-30] SOLE 4,951,754 4,951,754
Starboard Value LP [2025-06-30] DFND 4,864,500 4,864,500
FMR LLC [2025-06-30] DFND 4,528,104 4,538,389
Goldman Sachs Group Inc [2025-06-30] DFND 4,099,883 4,102,667
Dimensional Fund Advisors LP [2025-06-30] SOLE 3,924,519 3,999,459
Peak6 LLC [2025-06-30] DFND 3,909,982 3,909,982
Toms Capital Investment Management LP [2025-06-30] SOLE 3,577,553 3,764,000
Cantor Fitzgerald L P [2025-06-30] DFND 0 3,629,455
Renaissance Technologies LLC [2025-06-30] SOLE 3,201,149 3,201,149
Marex Group plc [2025-06-30] DFND 3,146,336 3,146,336
Point72 Asset Management LP [2025-06-30] DFND 0 3,110,681
Charles Schwab Investment Management Inc [2025-06-30] SOLE 3,102,615 3,102,615
Two Sigma Investments LP [2025-06-30] SOLE 3,087,253 3,087,253
Morgan Stanley [2025-06-30] DFND 1,548,145 3,029,564
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. [2025-06-30] DFND 2,918,899 2,918,899
Invesco Ltd. [2025-06-30] DFND 0 2,819,119
Northern Trust Corp [2025-06-30] DFND 2,742,592 2,744,738
UBS Group AG [2025-06-30] DFND 2,383,598 2,523,876
Merewether Investment Management LP [2025-06-30] SOLE 2,359,300 2,359,300
Wolverine Trading LLC [2025-06-30] DFND 0 2,080,290
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