undamentalytics Newsletter

Seer, Inc.: which funds bought and sold

Institutions that bought and sold Seer shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 23 institutions that filed 13F reports for both quarters added to or opened positions in Seer, and 27 cut or closed them. Together they sold a net 828K shares, −3.9% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 510K shares (+11.1%); index fund managers were net sellers of 538K shares (−11.4%). 9 opened a new position and 8 sold out entirely.

Bought, Q2 2026 23 institutions, 9 of them new holders Sold, Q2 2026 27 institutions, 8 of them sold out
Net change, all compared −828K shares (−3.9%)
Net change, active managers +510K shares (+11.1%), 6 bought, 7 sold

Buyers versus sellers

institutions compared, 67
Active managers and hedge funds 6 bought · 7 sold · +510K
Index fund managers 2 bought · 3 sold · −538K
Other institutions 15 bought · 17 sold · −799K

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Citadel Advisors LLC Hedge fund +519K New position 519K $862,055
Voss Capital, LP Hedge fund +137K New position 137K $227,903
Advisory Services Network, LLC +133K +1326.5% 143K $236,796
Edgewood Management LLC Active manager +100K +100.0% 200K $332,000
Jacobs Levy Equity Management, Inc Active manager +79K +55.2% 222K $369,071
Marquette Asset Management, LLC +62K New position 62K $102,615
Jane Street Group, LLC +59K New position 59K $98,604
Goldman Sachs Group Inc +52K +27.0% 247K $409,419
Rangeley Capital, LLC +38K +20.5% 222K $368,520
Geode Capital Management, LLC Index funds +37K +8.9% 460K $764,512
Xtx Topco Ltd +31K +237.5% 44K $73,666
HRT Financial LP +23K New position 23K $37,000
Bronte Capital Management Pty Ltd. +15K New position 15K $25,081
Price T Rowe Associates Inc Active manager +12K +30.3% 52K $87,000
Corient Private Wealth LP +10K +15.8% 73K $121,512
Renaissance Technologies LLC Hedge fund +8,812 +0.9% 986K $1.6M
Peapod Lane Capital LLC +6,869 +1.6% 445K $739,447
Vanguard Fiduciary Trust Co Index funds +1,433 +0.7% 217K $360,155
Palumbo Wealth Management LLC +1,296 +1.9% 68K $113,682
Atlantic Union Bankshares Corp +1,250 New position 1,250 $2,075

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Aju Ib Investment Co., Ltd. −816K Sold out 0 —
Blackrock, Inc. Index funds −393K −21.6% 1.4M $2.4M
T3 Companies, LLC −171K Sold out 0 —
Vanguard Capital Management LLC Index funds −128K −6.5% 1.8M $3M
D. E. Shaw & Co., Inc. Hedge fund −125K Sold out 0 —
Acadian Asset Management LLC Active manager −121K −5.8% 2.0M $3.2M
Newedge Advisors, LLC −79K Sold out 0 —
Northern Trust Corp Index funds −56K −41.4% 79K $130,966
Marshall Wace, LLP Hedge fund −46K Sold out 0 —
Shay Capital LLC −41K −30.5% 94K $156,385
Barclays PLC −40K −83.1% 8,127 $13,491
Algert Global LLC Hedge fund −35K Sold out 0 —
UBS Group AG −22K −46.0% 26K $43,391
Two Sigma Investments, LP Hedge fund −19K −3.8% 492K $817,215
Morgan Stanley −15K −9.6% 145K $241,421
Occudo Quantitative Strategies LP −13K Sold out 0 —
Prelude Capital Management, LLC −10K −23.1% 34K $56,252
Gsa Capital Partners LLP −9,980 −5.1% 185K $306,000
Dimensional Fund Advisors LP −9,291 −4.2% 213K $352,957
Invesco Ltd. −2,625 −9.9% 24K $39,566

New positions

largest by value
InstitutionSharesValue June 30, 2026
Citadel Advisors LLCHedge fund 519K $862,055
Voss Capital, LPHedge fund 137K $227,903
Marquette Asset Management, LLC 62K $102,615
Jane Street Group, LLC 59K $98,604
HRT Financial LP 23K $37,000
Bronte Capital Management Pty Ltd. 15K $25,081
Atlantic Union Bankshares Corp 1,250 $2,075
Simplex Trading, LLC 867 $1,439
Tower Research Capital LLC (TRC) 631 $1,047

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Aju Ib Investment Co., Ltd. 816K $1.5M
T3 Companies, LLC 171K $287,216
D. E. Shaw & Co., Inc.Hedge fund 125K $210,259
Newedge Advisors, LLC 79K $132,233
Marshall Wace, LLPHedge fund 46K $76,927
Algert Global LLCHedge fund 35K $58,766
Occudo Quantitative Strategies LP 13K $26,054
Cornerstone Planning Group LLC 447 $832

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
59
Ten largest holders
78.4%
of 13F-reported shares
Index fund managers
20.4%
of 13F-reported shares
Active managers and hedge funds
24.9%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 6 7 2 3 +510K +11.1%
Index fund managers 2 3 0 0 −538K −11.4%
Other institutions 15 17 7 5 −799K −6.7%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

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