SNDX — Institutional owners (13F)

262 filers · $2.5B total · As of Sept. 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institution Value Shares % of tracked 13F Type
BlackRock, Inc. $197,177,353 9,020,006 7.88% Shares
Kynam Capital Management, LP $175,993,964 8,050,959 7.03% Shares
VANGUARD GROUP INC $130,899,317 6,230,334 5.23% Shares
GOLDMAN SACHS GROUP INC $128,127,253 5,861,265 5.12% Shares
STATE STREET CORP $123,693,149 5,658,424 4.94% Shares
BANK OF AMERICA CORP /DE/ $88,425,755 4,045,094 3.53% Shares
VANGUARD CAPITAL MANAGEMENT LLC $85,863,719 3,927,892 3.43% Shares
DEERFIELD MANAGEMENT COMPANY, L.P. $82,628,614 3,779,900 3.30% Shares
Eversept Partners, LP $61,168,871 2,798,210 2.44% Shares
GEODE CAPITAL MANAGEMENT, LLC $56,499,563 2,584,136 2.26% Shares
Hood River Capital Management LLC $56,055,139 2,564,279 2.24% Shares
KINGDON CAPITAL MANAGEMENT, L.L.C. $54,650,000 2,500,000 2.18% Shares
FRANKLIN RESOURCES INC $49,982,872 2,286,499 2.00% Shares
MILLENNIUM MANAGEMENT LLC $44,899,566 2,053,960 1.79% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $42,010,461 1,921,796 1.68% Shares
UBS Group AG $41,397,375 1,893,750 1.65% Shares
Elmind Capital, LP $40,550,300 1,855,000 1.62% Shares
BNP PARIBAS ASSET MANAGEMENT Holding S.A. $39,133,182 1,790,173 1.56% Shares
Candriam S.C.A. $37,039,763 1,696,040 1.48% Shares
Soleus Capital Management, L.P. $35,588,933 1,628,039 1.42% Shares
TWO SIGMA INVESTMENTS, LP $34,497,812 1,578,125 1.38% Shares
ORBIMED ADVISORS LLC $33,708,120 1,542,000 1.35% Shares
Nuveen, LLC $29,829,610 1,364,575 1.19% Shares
MPM BIOIMPACT LLC $29,150,813 1,333,523 1.16% Shares
Aisling Capital Management LP $28,785,379 1,316,806 1.15% Shares
Woodline Partners LP $27,341,614 1,250,760 1.09% Shares
D. E. Shaw & Co., Inc. $27,105,395 1,239,954 1.08% Shares
Catalio Capital Management, LP $26,575,158 1,215,698 1.06% Shares
SILVERARC CAPITAL MANAGEMENT, LLC $26,546,565 1,214,390 1.06% Shares
Prosight Management, LP $26,232,000 1,200,000 1.05% Shares
Trails Edge Capital Partners, LP $24,264,600 1,110,000 0.97% Shares
ALGERT GLOBAL LLC $22,985,025 1,051,465 0.92% Shares
Bank of New York Mellon Corp $22,736,118 1,040,079 0.91% Shares
SPHERA FUNDS MANAGEMENT LTD. $22,179,287 1,014,606 0.89% Shares
LOOMIS SAYLES & CO L P $20,190,420 923,624 0.81% Shares
Parkman Healthcare Partners LLC $19,176,816 877,256 0.77% Shares
Ensign Peak Advisors, Inc $18,970,786 867,831 0.76% Shares
Palo Alto Investors LP $18,908,594 864,986 0.76% Shares
AQR CAPITAL MANAGEMENT LLC $18,653,226 853,304 0.75% Shares
NORTHERN TRUST CORP $18,483,439 845,537 0.74% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $17,800,664 814,303 0.71% Shares
VANGUARD FIDUCIARY TRUST CO $13,848,507 633,509 0.55% Shares
TWO SIGMA ADVISERS, LP $13,294,120 632,752 0.53% Shares
MORGAN STANLEY $12,875,080 588,979 0.51% Shares
Rhenman & Partners Asset Management AB $12,247,065 560,250 0.49% Shares
Apis Capital Advisors, LLC $12,154,160 556,000 0.49% Shares
PANAGORA ASSET MANAGEMENT INC $11,946,862 546,517 0.48% Shares
Qube Research & Technologies Ltd $10,431,199 477,182 0.42% Shares
FIRST TRUST ADVISORS LP $9,983,462 456,700 0.40% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $9,926,648 454,101 0.40% Shares
Granahan Investment Management, LLC $9,771,158 446,988 0.39% Shares
Knott David M Jr $9,558,176 437,245 0.38% Shares
Jump Financial, LLC $8,806,214 402,846 0.35% Shares
Aberdeen Group plc $8,148,665 372,766 0.33% Shares
Squarepoint Ops LLC $8,095,130 370,317 0.32% Shares
JUPITER ASSET MANAGEMENT LTD $8,013,176 366,568 0.32% Shares
AMERIPRISE FINANCIAL INC $7,581,323 346,852 0.30% Shares
Jones Hill Capital LP $7,432,400 340,000 0.30% Shares
DAFNA Capital Management LLC $7,328,674 335,255 0.29% Shares
ENVESTNET ASSET MANAGEMENT INC $7,161,708 327,617 0.29% Shares
RENAISSANCE TECHNOLOGIES LLC $7,030,176 321,600 0.28% Shares
Brevan Howard Capital Management LP $6,756,161 309,065 0.27% Shares
Alyeska Investment Group, L.P. $6,743,963 308,507 0.27% Shares
Verition Fund Management LLC $6,665,967 304,939 0.27% Shares
MACKENZIE FINANCIAL CORP $6,122,527 280,079 0.24% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,670,484 259,400 0.23% Call option
CITADEL ADVISORS LLC $5,645,957 258,278 0.23% Shares
Trexquant Investment LP $5,595,045 255,949 0.22% Shares
SECTOR GAMMA AS $5,284,415 241,739 0.21% Shares
Schonfeld Strategic Advisors LLC $5,174,631 236,717 0.21% Shares
JPMORGAN CHASE & CO $5,126,272 231,446 0.20% Shares
Pinnacle Financial Partners, Inc. $4,747,402 217,173 0.19% Shares
Man Group plc $4,671,548 213,703 0.19% Shares
Y-Intercept (Hong Kong) Ltd $4,649,906 212,713 0.19% Shares
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $4,530,485 207,250 0.18% Shares
Pictet Asset Management Holding SA $4,529,835 207,936 0.18% Shares
Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group $4,372,000 200,000 0.17% Shares
CITIGROUP INC $4,278,068 195,703 0.17% Shares
SEI INVESTMENTS CO $4,221,891 193,134 0.17% Shares
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $3,935,000 180,000 0.16% Shares
Cubist Systematic Strategies, LLC $3,796,689 246,779 0.15% Shares
Swiss National Bank $3,674,666 168,100 0.15% Shares
Atom Investors LP $3,552,775 162,524 0.14% Shares
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $3,499,259 149,797 0.14% Shares
SummitTX Capital, L.P. $3,077,822 140,797 0.12% Shares
Invesco Ltd. $3,017,992 138,060 0.12% Shares
Russell Investments Group, Ltd. $2,951,378 135,012 0.12% Shares
Torray Investment Partners LLC $2,925,633 133,835 0.12% Shares
RHUMBLINE ADVISERS $2,893,331 132,358 0.12% Shares
WELLS FARGO & COMPANY/MN $2,842,980 130,054 0.11% Shares
Pale Fire Capital SE $2,744,523 125,550 0.11% Shares
CAPITAL FUND MANAGEMENT S.A. $2,734,489 125,091 0.11% Shares
WELLINGTON MANAGEMENT GROUP LLP $2,715,908 124,241 0.11% Shares
PFM Health Sciences, LP $2,588,705 118,422 0.10% Shares
SCHRODER INVESTMENT MANAGEMENT GROUP $2,509,230 115,208 0.10% Shares
ALLIANCEBERNSTEIN L.P. $2,477,094 106,040 0.10% Shares
Rafferty Asset Management, LLC $2,137,624 97,787 0.09% Shares
TEMA ETFS LLC $2,102,114 100,053 0.08% Shares
DEUTSCHE BANK AG\ $2,083,586 95,315 0.08% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $2,043,495 93,481 0.08% Shares
HUSSMAN STRATEGIC ADVISORS, INC. $1,836,240 84,000 0.07% Shares
Aquatic Capital Management LLC $1,725,235 78,922 0.07% Shares
WINTON GROUP Ltd $1,672,290 76,500 0.07% Shares
Seven Fleet Capital Management LP $1,645,046 77,930 0.07% Shares
CITADEL ADVISORS LLC $1,538,944 70,400 0.06% Call option
1492 Capital Management LLC $1,464,554 66,997 0.06% Shares
Legal & General Group Plc $1,431,458 65,483 0.06% Shares
Virtus Investment Advisers, LLC $1,392,919 63,720 0.06% Shares
CITIGROUP INC $1,311,600 60,000 0.05% Call option
CITIGROUP INC $1,311,600 60,000 0.05% Put option
XTX Topco Ltd $1,293,325 59,164 0.05% Shares
VANGUARD ASSET MANAGEMENT, Ltd $1,276,755 58,406 0.05% Shares
Headlands Technologies LLC $1,229,122 56,227 0.05% Shares
IEQ CAPITAL, LLC $1,198,693 54,835 0.05% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $1,143,681 52,360 0.05% Shares
MetLife Investment Management, LLC $1,135,190 51,930 0.05% Shares
BARCLAYS PLC $1,084,256 49,600 0.04% Call option
PROFUND ADVISORS LLC $1,080,146 49,412 0.04% Shares
BARCLAYS PLC $1,064,472 48,695 0.04% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,047,094 47,900 0.04% Put option
STATE OF WISCONSIN INVESTMENT BOARD $988,269 45,209 0.04% Shares
MANUFACTURERS LIFE INSURANCE COMPANY, THE $968,507 44,305 0.04% Shares
STIFEL FINANCIAL CORP $955,592 43,714 0.04% Shares
JANUS HENDERSON GROUP PLC $920,046 39,335 0.04% Shares
Assenagon Asset Management S.A. $912,371 41,737 0.04% Shares
Connor, Clark & Lunn Investment Management Ltd. $893,877 40,891 0.04% Shares
CWM, LLC $865,395 37,046 0.03% Shares
HighTower Advisors, LLC $860,300 39,355 0.03% Shares
Mariner, LLC $833,411 38,128 0.03% Shares
VICTORY CAPITAL MANAGEMENT INC $829,106 37,928 0.03% Shares
Palumbo Wealth Management LLC $822,614 37,631 0.03% Shares
WESBANCO BANK INC $808,820 37,000 0.03% Shares
VOYA INVESTMENT MANAGEMENT LLC $806,066 36,874 0.03% Shares
Cetera Investment Advisers $796,644 36,443 0.03% Shares
Zurcher Kantonalbank (Zurich Cantonalbank) $790,261 36,151 0.03% Shares
Lion Point Capital, LP $786,960 36,000 0.03% Shares
Vanguard Global Advisers, LLC $751,350 34,371 0.03% Shares
BNP PARIBAS FINANCIAL MARKETS $712,658 32,601 0.03% Shares
DIVERSIFIED TRUST CO $708,701 32,420 0.03% Shares
NEW YORK STATE COMMON RETIREMENT FUND $683,868 31,284 0.03% Shares
S.A.C. Capital Advisors (Hong Kong) Ltd. $673,995 43,809 0.03% Shares
ROYAL BANK OF CANADA $667,000 30,555 0.03% Shares
Quantinno Capital Management LP $665,418 30,440 0.03% Shares
TWINBEECH CAPITAL LP $613,763 28,077 0.02% Shares
State of New Jersey Common Pension Fund D $592,253 27,093 0.02% Shares
Entropy Technologies, LP $578,263 26,453 0.02% Shares
Police & Firemen's Retirement System of New Jersey $574,087 26,262 0.02% Shares
Marex Group Ltd $552,184 25,260 0.02% Shares
Magnetar Financial LLC $544,117 24,891 0.02% Shares
INTECH INVESTMENT MANAGEMENT LLC $541,254 24,760 0.02% Shares
LOS ANGELES CAPITAL MANAGEMENT LLC $521,362 23,850 0.02% Shares
Inspire Investing, LLC $514,644 22,031 0.02% Shares
Creative Planning $511,852 23,415 0.02% Shares
ARIZONA STATE RETIREMENT SYSTEM $505,403 23,120 0.02% Shares
INCEPTIONR LLC $496,025 22,691 0.02% Shares
DNB Asset Management AS $492,156 22,514 0.02% Shares
Harbour Capital Advisors, LLC $487,547 20,650 0.02% Shares
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $471,020 19,950 0.02% Shares
Engineers Gate Manager LP $467,826 21,401 0.02% Shares
VIRGINIA RETIREMENT SYSTEMS ET Al $459,060 21,000 0.02% Shares
HSBC HOLDINGS PLC $456,787 20,539 0.02% Shares
PSP Research LLC $437,200 20,000 0.02% Shares
JANE STREET GROUP, LLC $430,642 19,700 0.02% Call option
Graham Capital Management, L.P. $428,784 19,615 0.02% Shares
Vanguard Investments Australia, Ltd. $428,128 19,585 0.02% Shares
Allspring Global Investments Holdings, LLC $421,268 20,166 0.02% Shares
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM $414,640 18,968 0.02% Shares
MERCER GLOBAL ADVISORS INC /ADV $404,191 18,490 0.02% Shares
Cerity Partners LLC $385,238 17,623 0.02% Shares
KLP KAPITALFORVALTNING AS $384,736 17,600 0.02% Shares
CITADEL ADVISORS LLC $354,132 16,200 0.01% Put option
GUGGENHEIM CAPITAL LLC $345,060 15,785 0.01% Shares
SECTORAL ASSET MANAGEMENT INC $342,765 15,680 0.01% Shares
PRUDENTIAL FINANCIAL INC $320,905 14,680 0.01% Shares
ProShare Advisors LLC $318,370 14,564 0.01% Shares
China Universal Asset Management Co., Ltd. $308,270 14,102 0.01% Shares
WOLVERINE TRADING, LLC $308,088 19,800 0.01% Call option
E Fund Management Co., Ltd. $301,406 13,788 0.01% Shares
AlphaQuest LLC $292,480 13,921 0.01% Shares
VARCOV Co. $283,568 12,972 0.01% Shares
Arrowpoint Investment Partners (Singapore) Pte. Ltd. $278,824 12,755 0.01% Shares
Post Resch Tallon Group Inc. $273,250 12,500 0.01% Shares
LETKO, BROSSEAU & ASSOCIATES INC $272,157 12,450 0.01% Shares
BANK OF MONTREAL /CAN/ $265,337 12,138 0.01% Shares
Point72 (DIFC) Ltd $258,325 16,791 0.01% Shares
Nebula Research & Development LLC $255,018 27,231 0.01% Shares
Corton Capital Inc. $250,268 16,267 0.01% Shares
WOLVERINE TRADING, LLC $233,400 15,000 0.01% Put option
Velan Capital Investment Management LP $218,600 10,000 0.01% Shares
TEACHER RETIREMENT SYSTEM OF TEXAS $212,982 9,743 0.01% Shares
Pallas Capital Advisors LLC $206,796 9,460 0.01% Shares
Bridgefront Capital, LLC $205,178 9,386 0.01% Shares
Allianz Asset Management GmbH $203,298 9,300 0.01% Shares
Ameritas Investment Partners, Inc. $176,651 8,081 0.01% Shares
Arax Advisory Partners $148,912 6,812 0.01% Shares
Walleye Capital LLC $139,904 6,400 0.01% Call option
Tower Research Capital LLC (TRC) $125,542 5,743 0.01% Shares
Walleye Capital LLC $123,203 5,636 0.00% Shares
FMR LLC $121,852 5,574 0.00% Shares
GROUP ONE TRADING LLC $106,261 4,861 0.00% Shares
US BANCORP \DE\ $99,332 4,544 0.00% Shares
Mirae Asset Global Investments Co., Ltd. $86,631 3,963 0.00% Shares
Cape Investment Advisory, Inc. $81,089 3,709 0.00% Shares
Rockefeller Capital Management L.P. $70,149 3,209 0.00% Shares
Bayforest Capital Ltd $68,925 3,153 0.00% Shares
OSAIC HOLDINGS, INC. $65,404 2,992 0.00% Shares
SIMPLEX TRADING, LLC $65,383 2,991 0.00% Shares
Smartleaf Asset Management LLC $56,171 2,579 0.00% Shares
Larson Financial Group LLC $50,562 2,313 0.00% Shares
JONES FINANCIAL COMPANIES LLLP $49,013 2,300 0.00% Shares
PNC Financial Services Group, Inc. $45,578 2,085 0.00% Shares
GF FUND MANAGEMENT CO. LTD. $40,834 1,868 0.00% Shares
Allworth Financial LP $25,555 1,169 0.00% Shares
Steward Partners Investment Advisory, LLC $20,352 931 0.00% Shares
EverSource Wealth Advisors, LLC $19,083 873 0.00% Shares
Kemnay Advisory Services Inc. $17,204 787 0.00% Shares
Versant Capital Management, Inc $15,867 844 0.00% Shares
COMERICA BANK $15,106 719 0.00% Shares
FIFTH THIRD BANCORP $15,018 687 0.00% Shares
IFP Advisors, Inc $14,624 669 0.00% Shares
NISA INVESTMENT ADVISORS, LLC $13,116 600 0.00% Shares
Essential Partners LLC $13,072 598 0.00% Shares
Walleye Capital LLC $10,930 500 0.00% Put option
HARBOUR INVESTMENTS, INC. $10,362 474 0.00% Shares
Farther Finance Advisors, LLC $9,312 426 0.00% Shares
GAMMA Investing LLC $9,116 417 0.00% Shares
HRT FINANCIAL LP $7,938 363,147 0.00% Shares
State of Wyoming $7,432 340 0.00% Shares
Sterling Capital Management LLC $6,842 313 0.00% Shares
Sunbelt Securities, Inc. $6,074 260 0.00% Shares
Optiver Holding B.V. $5,028 230 0.00% Shares
True Wealth Design, LLC $4,985 228 0.00% Shares
Silver Grove Financial Group, Inc. $4,285 196 0.00% Shares
Global Retirement Partners, LLC $3,443 158 0.00% Shares
Lindbrook Capital, LLC $3,391 276 0.00% Shares
CROWLEY WEALTH MANAGEMENT, INC. $3,077 200 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $2,803 128,199 0.00% Shares
BROWN BROTHERS HARRIMAN & CO $2,798 128 0.00% Shares
SJS Investment Consulting Inc. $2,602 119 0.00% Shares
ROTHSCHILD INVESTMENT LLC $2,470 113 0.00% Shares
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $1,618 74 0.00% Shares
MassMutual Private Wealth & Trust, FSB $1,552 71 0.00% Shares
GSA CAPITAL PARTNERS LLP $1,372 62,775 0.00% Shares
Caitong International Asset Management Co., Ltd $1,049 48 0.00% Shares
ASSETMARK, INC $874 40 0.00% Shares
TD PRIVATE CLIENT WEALTH LLC $809 37 0.00% Shares
SG Americas Securities, LLC $683 31,254 0.00% Shares
FINANCIAL CONSULATE, INC $328 15 0.00% Shares
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO $300 13,746 0.00% Shares
WEDBUSH SECURITIES INC $278 12,705 0.00% Shares
Clearstead Advisors, LLC $219 10 0.00% Shares
SIGNATUREFD, LLC $219 10 0.00% Shares
CANADA LIFE ASSURANCE Co $157 7,182 0.00% Shares
Ameritas Advisory Services, LLC $87 4 0.00% Shares
KBC Group NV $67 3,062 0.00% Shares
Hughes Financial Services, LLC $66 3 0.00% Shares
SBI Securities Co., Ltd. $44 2 0.00% Shares
Stone House Investment Management, LLC $44 2 0.00% Shares
Pacer Advisors, Inc. $36 1,633 0.00% Shares
Quarry LP $22 1 0.00% Shares
Avion Wealth $2 100 0.00% Shares
Covestor Ltd $1 29 0.00% Shares