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Prophase Labs Inc

CUSIP: 74345W108 | 126 institutional holders

Quarters

Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024
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Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13GVenkatesan Shyam855,1025.5%New 5%+ stakeOct 16, 2026No 13F filer matched
13GVenkatesan Shyam855,102
5.5% of class · Oct 16, 2026New 5%+ stake
No 13F filer matched

Institutional Holders — Q3 2025

Sykon Capital LLC644,795
0.1% of portfolio›$295.2K
Vanguard Group Inc531,919
0.0% of portfolio›$243.6K
Susquehanna International Group, LLP397,914
0.0% of portfolio›$182.2K
Geode Capital Management, LLC302,929
0.0% of portfolio›$138.7K
Accretive Wealth Partners, LLC250,000
0.0% of portfolio›$114.5K
HighTower Advisors, LLC237,338
0.0% of portfolio›$108.7K
Apollon Wealth Management, LLC182,464
0.0% of portfolio›$83.5K
Chapin Davis, Inc.80,000
0.0% of portfolio›$36.6K
Two Sigma Securities, LLC47,472
0.0% of portfolio›$21.7K
State Street Corp44,663
0.0% of portfolio›$20.4K
Simplex Trading, LLC40,598
0.0% of portfolio›$18
Bank of New York Mellon Corp37,052
0.0% of portfolio›$17.0K
XTX Topco Ltd28,768
0.0% of portfolio›$13.2K
BlackRock, Inc.28,026
0.0% of portfolio›$12.8K
Northern Trust Corp23,214
0.0% of portfolio›$10.6K
UBS Group AG19,740
0.0% of portfolio›$9.0K
Forvis Mazars Wealth Advisors, LLC19,598
0.0% of portfolio›$9.0K
Annex Advisory Services, LLC15,000
0.0% of portfolio›$6.9K
Cambridge Investment Research Advisors, Inc.14,795
0.0% of portfolio›$7
Renaissance Technologies LLC10,100
0.0% of portfolio›$4.6K
Nordwand Advisors, LLC10,000
0.0% of portfolio›$4.6K
Morgan Stanley9,167
0.0% of portfolio›$4.2K
JPMorgan Chase & Co1,765
0.0% of portfolio›$808
Wells Fargo & Company1,530
0.0% of portfolio›$700
Bank of America Corp1,118
0.0% of portfolio›$511
SBI Securities Co., Ltd.504
0.0% of portfolio›$231
CoreCap Advisors, LLC100
0.0% of portfolio›$46
Farther Finance Advisors, LLC97
0.0% of portfolio›$44
Key FInancial Inc1
0.0% of portfolio›$1
StyleTurnoverLocationFiled
Sykon Capital LLC
644,795$295.2K0.1%ETFVery HighHarrison, NY2025-11-14
Vanguard Group Inc
531,919$243.6K0.0%N/AN/AValley Forge, PA2025-11-07
Susquehanna International Group, LLP
397,914$182.2K0.0%GrowthHighBala Cynwyd, PA2025-11-14
Geode Capital Management, LLC
302,929$138.7K0.0%IndexVery LowBoston, MA2025-11-12
Accretive Wealth Partners, LLC
250,000$114.5K0.0%ETFVery LowParsippany, NJ2025-11-07
HighTower Advisors, LLC
237,338$108.7K0.0%IndexLowChicago, IL2025-11-07
Apollon Wealth Management, LLC
182,464$83.5K0.0%GrowthLowMount Pleasant, SC2025-10-17
Chapin Davis, Inc.
80,000$36.6K0.0%GrowthHighBaltimore, MD2025-10-09
Two Sigma Securities, LLC
47,472$21.7K0.0%ValueVery HighNew York, NY2025-11-14
State Street Corp
44,663$20.4K0.0%IndexVery LowBoston, MA2025-11-14
Simplex Trading, LLC
40,598$180.0%CoreVery HighChicago, IL2025-11-12
Bank of New York Mellon Corp
37,052$17.0K0.0%CoreLowNew York, NY2025-11-03
XTX Topco Ltd
28,768$13.2K0.0%ValueVery HighLondon, United Kingdom2025-11-14
BlackRock, Inc.
28,026$12.8K0.0%IndexVery LowNew York, NY2025-11-12
Northern Trust Corp
23,214$10.6K0.0%IndexVery LowChicago, IL2025-11-14
UBS Group AG
19,740$9.0K0.0%CoreMediumZurich, Switzerland2025-11-13
Forvis Mazars Wealth Advisors, LLC
19,598$9.0K0.0%ETFVery LowSpringfield, MO2025-10-30
Annex Advisory Services, LLC
15,000$6.9K0.0%GrowthHighBrookfield, WI2025-10-17
Cambridge Investment Research Advisors, Inc.
14,795$70.0%ETFLowFairfield, IA2025-11-12
Renaissance Technologies LLC
10,100$4.6K0.0%CoreHighNew York, NY2025-11-13
Nordwand Advisors, LLC
10,000$4.6K0.0%CoreLowRadnor, PA2025-10-29
Morgan Stanley
9,167$4.2K0.0%CoreLowNew York, NY2026-05-27
JPMorgan Chase & Co
1,765$8080.0%GrowthMediumNew York, NY2025-11-26
Wells Fargo & Company
1,530$7000.0%CoreLowSan Francisco, CA2025-11-13
Bank of America Corp
1,118$5110.0%CoreLowCharlotte, NC2026-02-03
SBI Securities Co., Ltd.
504$2310.0%Agg GrowthLowTokyo, Mexico2025-11-05
CoreCap Advisors, LLC
100$460.0%ETFMediumSouthfield, MI2025-10-22
Farther Finance Advisors, LLC
97$440.0%IndexLowSan Francisco, CA2025-10-14
Key FInancial Inc
1$10.0%ETFLowWest Chester, PA2025-11-05