2Seventy Bio Inc (TSVT) Ownership

5.00 ↑0.00 (0.00%)
As of December 31, 1969, 7:00pm EST.

Institutional Ownership

Kynam Capital Management, LP is the biggest individual institutional holder of 2Seventy Bio Inc (TSVT), owning a total of 6 million shares. Combined, the top 54 institutional holders of TSVT own 155.10% of the company with a total of 80.1 million shares.

In the latest ownership report on March 31st 2025, the top 54 institutional holders increased their combined ownership of TSVT by 8.2 million shares. 9 institutions bought 9,414,814 total additional shares and increased their ownership by an average of 8.65%. However 3 institutions sold 1,200,395 total shares and decreased their ownership by an average of 10.57%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of 2Seventy Bio increased by a net total of 8,214,419 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Goldman Sachs Group Inc8.795%9.005%4,681,675386,7742025-03-31
Beryl Capital Management LLC7.984%0.000%4,250,0004,250,0002025-03-31
BlackRock Inc7.462%-5.939%3,971,873-250,7812025-03-31
Morgan Stanley - Brokerage Accounts5.574%1.686%2,967,07849,1942025-03-31
Vanguard Group Inc5.297%-25.039%2,819,469-941,7762025-03-31
Newtyn Management LLC4.762%0.000%2,534,83602025-03-31
Bank of America Corp4.728%0.024%2,516,5056082025-03-31
Baker Bros Advisors LP4.692%0.000%2,497,52602025-03-31
Man Group PLC3.838%0.000%2,043,0262,043,0262025-03-31
Casdin Capital, LLC3.757%0.000%2,000,00002025-03-31
Glazer Capital, LLC2.495%0.000%1,328,1661,328,1662025-03-31
Regeneron Pharmaceuticals Inc2.357%0.000%1,254,82702025-03-31
Geode Capital Management, LLC2.268%2.817%1,207,34533,0842025-03-31
First Trust Capital Management L.P.2.149%0.000%1,143,9621,143,9622025-03-31
State Street Corp2.010%-0.727%1,069,815-7,8382025-03-31
The Toronto-Dominion Bank1.503%0.000%800,00002025-03-31
Engine Capital Management LP1.323%0.000%703,97202025-03-31
Madison Avenue Partners, LP1.089%0.000%579,89502025-03-31
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND0.864%64.286%460,000180,0002025-03-31
Dafna Capital Management LLC0.806%0.000%429,25202025-03-31

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Kynam Capital Management, LP11.185%0.000%5,953,82502024-12-31
Goldman Sachs Group Inc8.795%9.005%4,681,675386,7742025-03-31
Beryl Capital Management LLC7.984%0.000%4,250,0004,250,0002025-03-31
BlackRock Inc7.462%-5.939%3,971,873-250,7812025-03-31
Wellington Management Company LLP5.915%3.978%2,994,471114,5492023-09-30
Morgan Stanley - Brokerage Accounts5.574%1.686%2,967,07849,1942025-03-31
Vanguard Group Inc5.297%-25.039%2,819,469-941,7762025-03-31
Newtyn Management LLC4.762%0.000%2,534,83602025-03-31
Bank of America Corp4.728%0.024%2,516,5056082025-03-31
Baker Bros Advisors LP4.692%0.000%2,497,52602025-03-31
Orbimed Advisors, LLC4.739%0.000%2,391,62802023-06-30
Citadel Advisors Llc4.714%804.138%2,366,2392,104,5272023-03-31
Man Group PLC3.838%0.000%2,043,0262,043,0262025-03-31
Casdin Capital, LLC3.757%0.000%2,000,00002025-03-31
Point72 Asset Management, L.P.3.137%-2.859%1,612,542-47,4582024-03-31
Balyasny Asset Management LLC2.863%0.000%1,437,3021,437,3022023-03-31
ExodusPoint Capital Management, LP2.746%-4.627%1,389,953-67,4372023-09-30
Avidity Partners Management LP2.659%0.000%1,342,0001,342,0002023-06-30
Bain Capital Life Sciences Investors, LLC2.596%-5.472%1,331,801-77,1002023-12-31
Deutsche Bank AG2.580%-25.421%1,330,950-453,6692024-09-30
Glazer Capital, LLC2.495%0.000%1,328,1661,328,1662025-03-31
Armistice Capital, LLC3.238%-21.000%1,264,000-336,0002022-09-30
Regeneron Pharmaceuticals Inc2.357%0.000%1,254,82702025-03-31
Credit Suisse First Boston (CSFB)2.456%21.793%1,243,449222,4962023-09-30
RTW INVESTMENTS, LLC3.150%0.000%1,229,50802022-09-30
Geode Capital Management, LLC2.268%2.817%1,207,34533,0842025-03-31
First Trust Capital Management L.P.2.149%0.000%1,143,9621,143,9622025-03-31
EcoR1 Capital, LLC2.278%-51.160%1,143,494-1,197,8192022-12-31
State Street Corp2.010%-0.727%1,069,815-7,8382025-03-31
Eversept Partners, LLC1.886%0.561%1,003,6785,5992024-12-31
CHI Advisors LLC1.953%17.606%1,002,007150,0002023-09-30
State Street Corporation1.943%2.345%1,000,51222,9222024-03-31
Woodline Partners LP1.868%0.000%958,682958,6822023-12-31
Iron Triangle Partners LP1.731%0.000%868,939868,9392023-03-31
COWEN AND COMPANY, LLC1.529%0.000%800,00002024-09-30
The Toronto-Dominion Bank1.503%0.000%800,00002025-03-31
Western Standard LLC1.481%175.713%788,350502,4192024-12-31
Artal Group S A1.486%0.000%750,000750,0002023-03-31
Engine Capital Management LP1.323%0.000%703,97202025-03-31
Saturn V Capital Management LLC1.365%0.000%684,996684,9962022-12-31
Millennium Management LLC1.312%-71.077%675,433-1,659,8392024-03-31
Marshall Wace Asset Management Ltd1.295%50.361%667,023223,4082024-06-30
Charles Schwab Investment Management Inc1.195%-0.773%614,525-4,7902024-03-31
T. Rowe Price Associates, Inc.1.209%3,659.090%606,754590,6132023-03-31
FMR Inc1.181%64.319%592,872232,0662022-12-31
Madison Avenue Partners, LP1.089%0.000%579,89502025-03-31
Venator Management LLC1.080%9.524%575,00050,0002024-12-31
JPMorgan Chase & Co0.906%-53.163%482,204-547,3302024-12-31
Sectoral Asset Management Inc0.948%0.000%476,000476,0002023-03-31
Dimensional Fund Advisors, Inc.0.893%68.593%475,118193,3052024-12-31
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND0.864%64.286%460,000180,0002025-03-31
Boxer Capital LLC0.916%0.000%459,83602022-12-31
Dafna Capital Management LLC0.806%0.000%429,25202025-03-31
Northern Trust Corp0.916%4.056%357,56913,9382022-12-31

Mutual Fund Ownership

Vanguard Health Care Inv is the biggest individual fund holder of 2Seventy Bio Inc (TSVT), owning a total of 2 million shares. Combined, the top 79 mutual fund holders of TSVT own 46.03% of the company with a total of 23.8 million shares.

In the latest ownership report on April 30th 2025, the top 79 fund holders increased their combined ownership of TSVT by 16 thousand shares. 12 funds bought 45,815 total additional shares and increased their ownership by an average of 2.73%. However 6 funds sold 30,068 total shares and decreased their ownership by an average of 6.04%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding 2Seventy Bio increased by a net total of 15,747 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Total Stock Mkt Idx Inv2.867%0.000%1,526,00002025-04-30
iShares Russell 2000 ETF2.311%0.017%1,229,9512082025-04-30
Vanguard Institutional Extnd Mkt Idx Tr1.470%0.247%782,2831,9262025-04-30
Fidelity Small Cap Index0.936%2.303%498,31511,2162025-04-30
iShares Russell 2000 Value ETF0.885%-0.339%470,955-1,6002025-04-30
State St Russell Sm/Mid Cp® Indx NL Cl C0.637%0.419%338,9561,4152025-04-30
State St Russell Sm/Mid Cp® Indx SL Cl I0.637%0.419%338,9561,4152025-04-30
iShares Biotechnology ETF0.551%0.229%293,2166702025-04-30
Fidelity Extended Market Index0.531%-0.947%282,635-2,7022025-04-30
Schwab US Small-Cap ETF™0.462%-0.048%246,142-1192025-04-30
Vanguard Russell 2000 ETF0.455%5.902%242,05413,4892025-04-30
State St Russell Sm Cap® Indx SL Cl I0.352%0.000%187,47502025-04-30
Vanguard Health Care ETF0.293%-0.927%155,869-1,4582025-04-30
Schwab Small Cap Index0.229%4.615%122,0395,3842025-04-30
iShares Micro-Cap ETF0.199%0.000%105,80202025-04-30
Fidelity Total Market Index0.183%0.000%97,37602025-04-30
NYLI Merger Arbitrage ETF0.172%0.000%91,76002025-04-30
iShares Russell 2000 Small-Cap Idx Instl0.154%0.000%81,80102025-04-30
SPDR® Russell 2000 US Small Cap ETF0.137%-8.859%72,799-7,0762025-04-30
Fidelity Series Total Market Index0.136%4.584%72,5963,1822025-04-30
Spartan Extended Market Index Pool F0.109%4.880%58,0772,7022025-04-30
EQ/2000 Managed Volatility IB0.107%0.000%56,83802025-04-30
Fidelity Small Cap Value Index0.102%2.735%54,0151,4382025-04-30
Nuveen Small Cap Blend Idx R60.096%-25.148%50,936-17,1132025-04-30
Spartan Small Cap Index Pool K0.086%6.447%45,7362,7702025-04-30

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Health Care Inv4.043%0.000%2,046,66602023-09-30
SPDR® S&P Biotech ETF3.857%-2.302%1,946,343-45,8502023-08-31
Vanguard Total Stock Mkt Idx Inv2.867%0.000%1,526,00002025-04-30
iShares Russell 2000 ETF2.311%0.017%1,229,9512082025-04-30
CS (Lux) Digital Health Equity SB USD2.371%0.000%1,200,00002023-09-30
Man Event Driven Alternative IN USD2.176%0.000%1,158,4371,158,4372025-03-31
Vanguard Institutional Extnd Mkt Idx Tr1.470%0.247%782,2831,9262025-04-30
Vanguard Extended Market Index Investor1.543%-0.021%778,770-1652023-08-31
Vanguard Strategic Equity Inv1.343%0.000%702,78702024-12-31
AlphaCentric LifeSci Healthcare I1.299%265.278%657,500477,5002023-09-30
Xtrackers S&P 500 2xLev Dly Swap ETF 1C1.270%0.000%655,11802024-10-31
Biotech Growth Ord1.107%-49.866%560,517-557,5192023-07-31
Fidelity Small Cap Index0.936%2.303%498,31511,2162025-04-30
Fidelity® Small Cap Index0.951%1.956%481,5619,2392023-10-31
iShares Russell 2000 Value ETF0.885%-0.339%470,955-1,6002025-04-30
JPM Thematics Genetic Thrps C2 Acc USD0.888%-3.397%457,925-16,1022024-11-30
JPM Thematics Genetic Thrps C2 dist USD0.844%0.000%441,82202025-02-28
Xtrackers MSCI World Swap ETF 1C0.653%0.000%347,79302025-03-31
State St Russell Sm/Mid Cp® Indx NL Cl C0.637%0.419%338,9561,4152025-04-30
State St Russell Sm/Mid Cp® Indx SL Cl I0.637%0.419%338,9561,4152025-04-30
Fidelity® Extended Market Index0.632%0.000%319,69502023-11-30
iShares Biotechnology ETF0.551%0.229%293,2166702025-04-30
Goldman Sachs Small Cap Value A0.569%12.685%285,71832,1632022-12-31
Fidelity Extended Market Index0.531%-0.947%282,635-2,7022025-04-30
Stork Fund Dynamic MultiStrategies O EUR0.480%0.000%255,714255,7142025-03-31
Schwab US Small-Cap ETF™0.462%-0.048%246,142-1192025-04-30
Direxion Daily S&P Biotech Bull 3X ETF0.486%3.497%245,0988,2822023-08-31
Vanguard Russell 2000 ETF0.455%5.902%242,05413,4892025-04-30
Clough Global Opportunities0.432%0.000%218,70002023-09-30
Global X Genomics & Biotechnology ETF0.416%1.148%209,7012,3802023-09-29
Vanguard Strategic Small-Cap Equity Inv0.395%0.000%206,93402024-12-31
Schwab Small-Cap Equity0.381%-0.865%195,629-1,7072024-03-31
State St Russell Sm Cap® Indx SL Cl I0.352%0.000%187,47502025-04-30
Fidelity® Select Pharmaceuticals Port0.366%0.000%183,60002023-02-28
State St Russell Sm Cap® Indx NL Cl C0.363%0.000%183,17502023-09-30
iShares Core S&P Total US Stock Mkt ETF0.345%0.064%177,2991142024-05-30
GS Global Future Health Cr Eq I USD Acc0.335%0.000%168,13802023-04-30
JPMorgan Small Cap Value I0.306%-2.545%157,184-4,1052024-05-31
Vanguard Health Care ETF0.293%-0.927%155,869-1,4582025-04-30
Galileo - Biotech Innovation Fund S USD0.276%0.000%146,70002024-12-31
JPMorgan US Small Company L0.375%0.000%142,11902022-10-31
Goldman Sachs Small Cp Val Insghts Instl0.358%0.000%139,74002022-10-31
Bridgeway Ultra-Small Company Market0.244%0.000%130,00002024-12-31
BlackRock Extended Mkt Composite0.242%0.711%124,4538792023-09-30
Schwab Small Cap Index0.229%4.615%122,0395,3842025-04-30
NT R2000 Index Fund - NL0.223%4.688%118,6395,3132025-03-31
NT R2000 Value Index Fund - NL0.219%-6.845%114,558-8,4182024-12-31
BlackRock Extended Equity Market K0.208%-0.043%107,171-462024-09-30
Extended Equity Market Fund K0.199%0.307%106,0403252025-03-31
iShares Micro-Cap ETF0.199%0.000%105,80202025-04-30
Fidelity Total Market Index0.183%0.000%97,37602025-04-30
NT R2000 Index Fund - DC - NL - 30.178%2.514%94,7772,3242025-03-31
NYLI Merger Arbitrage ETF0.172%0.000%91,76002025-04-30
GDL Fund0.160%0.000%85,00085,0002025-03-31
iShares Russell 2000 Small-Cap Idx Instl0.154%0.000%81,80102025-04-30
DFA US Targeted Value I0.153%-21.608%81,201-22,3822025-03-31
Russell 2500™ Index Fund F0.151%-0.021%80,336-172025-03-31
SPDR® Russell 2000 US Small Cap ETF0.137%-8.859%72,799-7,0762025-04-30
Fidelity Series Total Market Index0.136%4.584%72,5963,1822025-04-30
Russell 2000 Index Non-Lendable Fund E0.124%-7.534%65,882-5,3682025-03-31
Northern Trust Extended Eq Market Idx0.115%4.667%61,2282,7302025-03-31
NT Ext Equity Mkt Idx Fd - L0.115%4.667%61,2282,7302025-03-31
Spartan Extended Market Index Pool F0.109%4.880%58,0772,7022025-04-30
EQ/2000 Managed Volatility IB0.107%0.000%56,83802025-04-30
Northern Trust Russell 2000 Value Index0.103%-46.268%54,970-47,3342025-03-31
NT Col R2000 Val Idx Fd -DC -L -TierFour0.103%-46.268%54,970-47,3342025-03-31
Fidelity Small Cap Value Index0.102%2.735%54,0151,4382025-04-30
Nuveen Small Cap Blend Idx R60.096%-25.148%50,936-17,1132025-04-30
Russell Personalized DI All Cap SMA0.091%0.000%48,40502025-03-31
Spartan Small Cap Index Pool K0.086%6.447%45,7362,7702025-04-30
Northern Trust Russell 2000 Index0.073%-13.744%38,748-6,1742025-03-31
LVIP SSgA Small Cap Index Std0.072%0.000%38,30002025-03-31
Vanguard Instl Ttl Stck Mkt Idx Tr0.065%0.000%34,35902024-12-31
PanAgora US Sm Cap Stock Selector Aegis0.052%6.454%27,4141,6622025-03-31
Wellington Emerging Companies0.045%-45.681%23,934-20,1282025-03-31
State Street Russell 2000 Value CIT0.040%0.000%21,34602025-03-31
Northern Small Cap Index0.040%-12.582%21,053-3,0302025-03-31
T. Rowe Price U.S. Small-Cap Index Tr-Z0.034%21.221%17,9653,1452025-03-31
BrighthouseII MetLife Russl 2000® Idx A0.032%0.000%16,93102025-03-31

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