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Spero Therapeutics Inc (SPRO)

Q2 2026 vs Q3 2026

Comparing institutional holders between quarters

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile
GSK plc
UNCHANGED
Shares9,190,606 from 9,190,606
Change0 (0%)
Value$11.1M (-$9.2M)
Filed 2026-11-05
MacKenzie Financial Corp
NEW
Shares1,831,254
Change+1,831,254
Value$2.2M
Filed 2026-11-02
Geode Capital Management, LLC
DECREASED
Shares499,271 from 566,329
Change-67,058 (-12%)
Value$604.4K (-$647.7K)
Filed 2026-11-06
Dimensional Fund Advisors LP
DECREASED
Shares91,287 from 274,820
Change-183,533 (-67%)
Value$110.4K (-$497.2K)
Filed 2026-11-04
StoneX Group Inc.
NEW
Shares38,241
Change+38,241
Value$45.8K
Filed 2026-11-03
Simplex Trading, LLC
DECREASED
Shares36,830 from 61,312
Change-24,482 (-40%)
Value$44.6K (-$90.9K)
Filed 2026-11-04
Capital Asset Advisory Services LLC
UNCHANGED
Shares32,548 from 32,548
Change0 (0%)
Value$36.8K (-$35.2K)
Filed 2026-10-30
Three Seasons Wealth, LLC
UNCHANGED
Shares30,000 from 30,000
Change0 (0%)
Value$36.3K (-$30.0K)
Filed 2026-11-03
Oppenheimer & Co Inc
INCREASED
Shares26,750 from 22,850
Change+3,900 (+17%)
Value$32.4K (-$18.1K)
Filed 2026-10-26
FNY Investment Advisers, LLC
INCREASED
Shares21,300 from 8,300
Change+13,000 (+157%)
Value$25 (+$7)
Filed 2026-10-16
Ritholtz Wealth Management
NEW
Shares20,704
Change+20,704
Value$25.1K
Filed 2026-11-05
Assenagon Asset Management S.A.
DECREASED
Shares17,762 from 18,636
Change-874 (-5%)
Value$21.5K (-$19.7K)
Filed 2026-10-15
Torrey Growth & Income Advisors
NEW
Shares11,025
Change+11,025
Value$13.7K
Filed 2026-11-04
US Bancorp \de\
UNCHANGED
Shares151 from 151
Change0 (0%)
Value$183 (-$151)
Filed 2026-11-05
SBI Securities Co., Ltd.
INCREASED
Shares61 from 13
Change+48 (+369%)
Value$74 (+$45)
Filed 2026-10-22
Farther Finance Advisors, LLC
UNCHANGED
Shares10 from 10
Change0 (0%)
Value$12 (-$10)
Filed 2026-10-08
Barclays PLC
NEW
Shares6
Change+6
Value$7
Filed 2026-11-06
Alphabet Inc.
CLOSED
Shares0 from 889,979
Change-889,979 (-100%)
Value$0 (-$2.0M)
Filed 2026-11-06
Axxcess Wealth Management, LLC
CLOSED
Shares0 from 32,548
Change-32,548 (-100%)
Value$0 (-$71.9K)
Filed 2026-10-21
DLK Investment Management, LLC
CLOSED
Shares0 from 31,355
Change-31,355 (-100%)
Value$0 (-$40.8K)
Filed 2026-10-09
Citigroup Inc
CLOSED
Shares0 from 9,625
Change-9,625 (-100%)
Value$0 (-$21.3K)
Filed 2026-11-04
International Assets Investment Management, LLC
CLOSED
Shares0 from 0
Change0
Value$0 ($0)
Filed 2026-11-02
Pfizer Inc
N/A
Shares— from 2,362,348
Change-2,362,348 (-100%)
Value—
Vanguard Capital Management LLC
N/A
Shares— from 2,036,226
Change-2,036,226 (-100%)
Value—
Renaissance Technologies LLC
N/A
Shares— from 947,904
Change-947,904 (-100%)
Value—
Susquehanna International Group, LLP
N/A
Shares— from 759,290
Change-759,290 (-100%)
Value—
BlackRock, Inc.
N/A
Shares— from 594,404
Change-594,404 (-100%)
Value—
Raymond James Financial Inc
N/A
Shares— from 521,705
Change-521,705 (-100%)
Value—
Two Sigma Investments, LP
N/A
Shares— from 382,814
Change-382,814 (-100%)
Value—
Arrowstreet Capital, Limited Partnership
N/A
Shares— from 332,970
Change-332,970 (-100%)
Value—
Vanguard Fiduciary Trust Co
N/A
Shares— from 287,648
Change-287,648 (-100%)
Value—
GSA Capital Partners LLP
N/A
Shares— from 285,906
Change-285,906 (-100%)
Value—
Goldman Sachs Group Inc
N/A
Shares— from 256,985
Change-256,985 (-100%)
Value—
State Street Corp
N/A
Shares— from 214,751
Change-214,751 (-100%)
Value—
Jane Street Group, LLC
N/A
Shares— from 158,097
Change-158,097 (-100%)
Value—
UBS Group AG
N/A
Shares— from 139,680
Change-139,680 (-100%)
Value—
Bridgeway Capital Management, LLC
N/A
Shares— from 114,800
Change-114,800 (-100%)
Value—
Northern Trust Corp
N/A
Shares— from 108,274
Change-108,274 (-100%)
Value—
Point72 Asset Management, L.P.
N/A
Shares— from 104,377
Change-104,377 (-100%)
Value—
Ionic Capital Management LLC
N/A
Shares— from 102,698
Change-102,698 (-100%)
Value—
Federation des caisses Desjardins du Quebec
N/A
Shares— from 91,900
Change-91,900 (-100%)
Value—
Shay Capital LLC
N/A
Shares— from 72,391
Change-72,391 (-100%)
Value—
Invesco Ltd.
N/A
Shares— from 64,245
Change-64,245 (-100%)
Value—
Verdad Advisers, LP
N/A
Shares— from 51,335
Change-51,335 (-100%)
Value—
XTX Topco Ltd
N/A
Shares— from 50,536
Change-50,536 (-100%)
Value—
American Century Companies Inc
N/A
Shares— from 36,811
Change-36,811 (-100%)
Value—
Charles Schwab Investment Management Inc
N/A
Shares— from 28,565
Change-28,565 (-100%)
Value—
Vanguard Global Advisers, LLC
N/A
Shares— from 25,446
Change-25,446 (-100%)
Value—
Global Retirement Partners, LLC
N/A
Shares— from 25,000
Change-25,000 (-100%)
Value—
Millennium Management LLC
N/A
Shares— from 19,298
Change-19,298 (-100%)
Value—
Susquehanna Portfolio Strategies, LLC
N/A
Shares— from 17,628
Change-17,628 (-100%)
Value—
Susquehanna Fundamental Investments, LLC
N/A
Shares— from 16,095
Change-16,095 (-100%)
Value—
Qube Research & Technologies Ltd
N/A
Shares— from 13,644
Change-13,644 (-100%)
Value—
SG Americas Securities, LLC
N/A
Shares— from 11,268
Change-11,268 (-100%)
Value—
Group One Trading LLC
N/A
Shares— from 10,869
Change-10,869 (-100%)
Value—
Two Sigma Securities, LLC
N/A
Shares— from 10,576
Change-10,576 (-100%)
Value—
Prudential Financial Inc
N/A
Shares— from 10,400
Change-10,400 (-100%)
Value—
Jones Financial Companies Lllp
N/A
Shares— from 7,678
Change-7,678 (-100%)
Value—
Royal Bank of Canada
N/A
Shares— from 2,014
Change-2,014 (-100%)
Value—
Morgan Stanley
N/A
Shares— from 914
Change-914 (-100%)
Value—
FMR LLC
N/A
Shares— from 300
Change-300 (-100%)
Value—
Osaic Holdings, Inc.
N/A
Shares— from 290
Change-290 (-100%)
Value—
JPMorgan Chase & Co
N/A
Shares— from 236
Change-236 (-100%)
Value—
Wells Fargo & Company
N/A
Shares— from 200
Change-200 (-100%)
Value—
Rialto Wealth Management, LLC
N/A
Shares— from 172
Change-172 (-100%)
Value—
Status
GSK plc
UNCHANGED9,190,6069,190,60600%$20.3M$11.1M-$9.2M2026-11-05
MacKenzie Financial Corp
NEW1,831,254—+1,831,254——$2.2M—2026-11-02
Geode Capital Management, LLC
DECREASED499,271566,329-67,058-12%$1.3M$604.4K-$647.7K2026-11-06
Dimensional Fund Advisors LP
DECREASED91,287274,820-183,533-67%$607.6K$110.4K-$497.2K2026-11-04
StoneX Group Inc.
NEW38,241—+38,241——$45.8K—2026-11-03
Simplex Trading, LLC
DECREASED36,83061,312-24,482-40%$135.5K$44.6K-$90.9K2026-11-04
Capital Asset Advisory Services LLC
UNCHANGED32,54832,54800%$71.9K$36.8K-$35.2K2026-10-30
Three Seasons Wealth, LLC
UNCHANGED30,00030,00000%$66.3K$36.3K-$30.0K2026-11-03
Oppenheimer & Co Inc
INCREASED26,75022,850+3,900+17%$50.5K$32.4K-$18.1K2026-10-26
FNY Investment Advisers, LLC
INCREASED21,3008,300+13,000+157%$18$25+$72026-10-16
Ritholtz Wealth Management
NEW20,704—+20,704——$25.1K—2026-11-05
Assenagon Asset Management S.A.
DECREASED17,76218,636-874-5%$41.2K$21.5K-$19.7K2026-10-15
Torrey Growth & Income Advisors
NEW11,025—+11,025——$13.7K—2026-11-04
US Bancorp \de\
UNCHANGED15115100%$334$183-$1512026-11-05
SBI Securities Co., Ltd.
INCREASED6113+48+369%$29$74+$452026-10-22
Farther Finance Advisors, LLC
UNCHANGED101000%$22$12-$102026-10-08
Barclays PLC
NEW6—+6——$7—2026-11-06
Alphabet Inc.
CLOSED0889,979-889,979-100%$2.0M$0-$2.0M2026-11-06
Axxcess Wealth Management, LLC
CLOSED032,548-32,548-100%$71.9K$0-$71.9K2026-10-21
DLK Investment Management, LLC
CLOSED031,355-31,355-100%$40.8K$0-$40.8K2026-10-09
Citigroup Inc
CLOSED09,625-9,625-100%$21.3K$0-$21.3K2026-11-04
International Assets Investment Management, LLC
CLOSED000—$0$0$02026-11-02
Pfizer Inc
N/A—2,362,348-2,362,348-100%$5.3M———
Vanguard Capital Management LLC
N/A—2,036,226-2,036,226-100%$4.5M———
Renaissance Technologies LLC
N/A—947,904-947,904-100%$2.1M———
Susquehanna International Group, LLP
N/A—759,290-759,290-100%$1.7M———
BlackRock, Inc.
N/A—594,404-594,404-100%$1.3M———
Raymond James Financial Inc
N/A—521,705-521,705-100%$1.2M———
Two Sigma Investments, LP
N/A—382,814-382,814-100%$846.0K———
Arrowstreet Capital, Limited Partnership
N/A—332,970-332,970-100%$735.9K———
Vanguard Fiduciary Trust Co
N/A—287,648-287,648-100%$635.7K———
GSA Capital Partners LLP
N/A—285,906-285,906-100%$632.0K———
Goldman Sachs Group Inc
N/A—256,985-256,985-100%$567.9K———
State Street Corp
N/A—214,751-214,751-100%$474.6K———
Jane Street Group, LLC
N/A—158,097-158,097-100%$349.4K———
UBS Group AG
N/A—139,680-139,680-100%$308.7K———
Bridgeway Capital Management, LLC
N/A—114,800-114,800-100%$253.7K———
Northern Trust Corp
N/A—108,274-108,274-100%$239.3K———
Point72 Asset Management, L.P.
N/A—104,377-104,377-100%$230.7K———
Ionic Capital Management LLC
N/A—102,698-102,698-100%$227.0K———
Federation des caisses Desjardins du Quebec
N/A—91,900-91,900-100%$202.2K———
Shay Capital LLC
N/A—72,391-72,391-100%$160.0K———
Invesco Ltd.
N/A—64,245-64,245-100%$142.0K———
Verdad Advisers, LP
N/A—51,335-51,335-100%$113.5K———
XTX Topco Ltd
N/A—50,536-50,536-100%$111.7K———
American Century Companies Inc
N/A—36,811-36,811-100%$81.4K———
Charles Schwab Investment Management Inc
N/A—28,565-28,565-100%$63.1K———
Vanguard Global Advisers, LLC
N/A—25,446-25,446-100%$56.2K———
Global Retirement Partners, LLC
N/A—25,000-25,000-100%$55.3K———
Millennium Management LLC
N/A—19,298-19,298-100%$42.6K———
Susquehanna Portfolio Strategies, LLC
N/A—17,628-17,628-100%$39.0K———
Susquehanna Fundamental Investments, LLC
N/A—16,095-16,095-100%$35.6K———
Qube Research & Technologies Ltd
N/A—13,644-13,644-100%$30.2K———
SG Americas Securities, LLC
N/A—11,268-11,268-100%$25.0K———
Group One Trading LLC
N/A—10,869-10,869-100%$24.0K———
Two Sigma Securities, LLC
N/A—10,576-10,576-100%$23.4K———
Prudential Financial Inc
N/A—10,400-10,400-100%$23.0K———
Jones Financial Companies Lllp
N/A—7,678-7,678-100%$17.4K———
Royal Bank of Canada
N/A—2,014-2,014-100%$4.0K———
Morgan Stanley
N/A—914-914-100%$2.0K———
FMR LLC
N/A—300-300-100%$663———
Osaic Holdings, Inc.
N/A—290-290-100%$640———
JPMorgan Chase & Co
N/A—236-236-100%$533———
Wells Fargo & Company
N/A—200-200-100%$442———
Rialto Wealth Management, LLC
N/A—172-172-100%$381———
Showing 65 of 65 institutions