Syndax Pharmaceuticals Inc (SNDX) — Institutional Holders, Q2 2026

242 institutional investment managers reported a SNDX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $2.4B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← SNDX stock profile

SNDX in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

MILLENNIUM MANAGEMENTAdded · +1,854,436 sh+$40.5M
STATE STREETAdded · +1,228,348 sh+$26.9M
LOOMIS SAYLES & L PNew · +923,624 sh+$20.2M
GOLDMAN SACHS GROUPAdded · +864,478 sh+$18.9M
Candriam S.C.A.Added · +770,708 sh+$16.8M

Biggest sellers

Point72 Asset Management, L.P.Sold out · -1,985,547 sh-$43.4M
StemPoint CapitalSold out · -1,215,743 sh-$26.6M
Walleye CapitalTrimmed · -379,337 sh-$8.3M
CITADEL ADVISORSTrimmed · -372,664 sh-$8.1M
D. E. ShawTrimmed · -361,942 sh-$7.9M

SNDX 13F holders ranked 1–100 of 242

Institutional investors reporting a position in Syndax Pharmaceuticals Inc on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 9,020,006 sh	9,020,006	$197.2M	<0.01%	+9.3%
2	Kynam Capital Management#2 · 8,050,959 sh	8,050,959	$176.0M	9.73%	0.0%
3	GOLDMAN SACHS GROUP#3 · 5,861,265 sh	5,861,265	$128.1M	0.01%	+17.3%
4	STATE STREET#4 · 5,658,424 sh	5,658,424	$123.7M	<0.01%	+27.7%
5	BANK OF AMERICA#5 · 4,045,094 sh	4,045,094	$88.4M	<0.01%	-4.8%
6	VANGUARD CAPITAL MANAGEMENT#6 · 3,927,892 sh	3,927,892	$85.9M	<0.01%	+2.8%
7	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)#7 · 3,779,900 sh	3,779,900	$82.6M	0.86%	0.0%
8	Eversept Partners#8 · 2,798,210 sh	2,798,210	$61.2M	3.17%	-3.0%
9	GEODE CAPITAL MANAGEMENT#9 · 2,584,136 sh	2,584,136	$56.5M	<0.01%	+19.8%
10	Hood River Capital Management#10 · 2,564,279 sh	2,564,279	$56.1M	0.41%	+8.9%
11	KINGDON CAPITAL MANAGEMENT, L.L.C.#11 · 2,500,000 sh	2,500,000	$54.6M	5.60%	0.0%
12	FRANKLIN RESOURCES#12 · 2,286,499 sh	2,286,499	$50.0M	0.01%	+6.3%
13	MILLENNIUM MANAGEMENT#13 · 2,053,960 sh	2,053,960	$44.9M	0.02%	+929.4%
14	VANGUARD PORTFOLIO MANAGEMENT#14 · 1,921,796 sh	1,921,796	$42.0M	<0.01%	+10.6%
15	UBS Group AG#15 · 1,893,750 sh	1,893,750	$41.4M	<0.01%	+64.2%
16	Elmind Capital#16 · 1,855,000 sh	1,855,000	$40.6M	10.19%	0.0%
17	BNP Paribas Asset Management Holding S.A.#17 · 1,790,173 sh	1,790,173	$39.1M	0.04%	+3.3%
18	Candriam S.C.A.#18 · 1,696,040 sh	1,696,040	$37.0M	0.17%	+83.3%
19	Soleus Capital Management, L.P.#19 · 1,628,039 sh	1,628,039	$35.6M	1.23%	-5.7%
20	TWO SIGMA INVESTMENTS#20 · 1,578,125 sh	1,578,125	$34.5M	0.03%	-0.1%
21	ORBIMED ADVISORS#21 · 1,542,000 sh	1,542,000	$33.7M	0.62%	+60.2%
22	Nuveen#22 · 1,364,575 sh	1,364,575	$29.8M	<0.01%	-8.7%
23	MPM BioImpact#23 · 1,333,523 sh	1,333,523	$29.2M	1.78%	-0.5%
24	Aisling Capital Management#24 · 1,316,806 sh	1,316,806	$28.8M	6.10%	0.0%
25	Woodline Partners#25 · 1,250,760 sh	1,250,760	$27.3M	0.08%	0.0%
26	D. E. Shaw#26 · 1,239,954 sh	1,239,954	$27.1M	0.01%	-22.6%
27	Catalio Capital Management#27 · 1,215,698 sh	1,215,698	$26.6M	4.99%	+16.5%
28	SILVERARC CAPITAL MANAGEMENT#28 · 1,214,390 sh	1,214,390	$26.5M	2.76%	+36.6%
29	Prosight Management#29 · 1,200,000 sh	1,200,000	$26.2M	4.52%	+55.8%
30	Trails Edge Capital Partners#30 · 1,110,000 sh	1,110,000	$24.3M	3.85%	+58.2%
31	ALGERT GLOBAL#31 · 1,051,465 sh	1,051,465	$23.0M	0.27%	+13.2%
32	Bank of New York Mellon#32 · 1,040,079 sh	1,040,079	$22.7M	<0.01%	+3.5%
33	SPHERA FUNDS MANAGEMENT LTD.#33 · 1,014,606 sh	1,014,606	$22.2M	2.89%	+40.0%
34	LOOMIS SAYLES & L P#34 · 923,624 sh	923,624	$20.2M	0.03%	New
35	Parkman Healthcare Partners#35 · 877,256 sh	877,256	$19.2M	1.96%	-2.7%
36	Ensign Peak Advisors#36 · 867,831 sh	867,831	$19.0M	0.03%	-12.4%
37	Palo Alto Investors#37 · 864,986 sh	864,986	$18.9M	2.61%	0.0%
38	AQR CAPITAL MANAGEMENT#38 · 853,304 sh	853,304	$18.7M	<0.01%	-13.0%
39	NORTHERN#39 · 845,537 sh	845,537	$18.5M	<0.01%	+11.9%
40	CHARLES SCHWAB INVESTMENT MANAGEMENT#40 · 814,303 sh	814,303	$17.8M	<0.01%	+13.9%
41	VANGUARD FIDUCIARY#41 · 633,509 sh	633,509	$13.8M	<0.01%	+5.5%
42	MORGAN STANLEY#42 · 588,979 sh	588,979	$12.9M	<0.01%	-34.1%
43	Rhenman & Partners Asset Management AB#43 · 560,250 sh	560,250	$12.2M	1.16%	+47.7%
44	APIS CAPITAL ADVISORS#44 · 556,000 sh	556,000	$12.2M	1.18%	+1.1%
45	PANAGORA ASSET MANAGEMENT#45 · 546,517 sh	546,517	$11.9M	0.04%	+119.1%
46	Qube Research & Technologies Ltd#46 · 477,182 sh	477,182	$10.4M	<0.01%	+1223.8%
47	FIRST ADVISORS#47 · 456,700 sh	456,700	$10.0M	<0.01%	New
48	SUSQUEHANNA INTERNATIONAL GROUP, LLP#48 · 454,101 sh	454,101	$9.9M	<0.01%	+131.0%
49	Granahan Investment Management#49 · 446,988 sh	446,988	$9.8M	0.35%	+45.9%
50	Knott David M Jr#50 · 437,245 sh	437,245	$9.6M	5.05%	+3.6%
51	Jump Financial#51 · 402,846 sh	402,846	$8.8M	0.07%	New
52	abrdn plc#52 · 372,766 sh	372,766	$8.1M	0.01%	+29.9%
53	Squarepoint Ops#53 · 370,317 sh	370,317	$8.1M	<0.01%	+104.0%
54	JUPITER ASSET MANAGEMENT LTD#54 · 366,568 sh	366,568	$8.0M	0.04%	New
55	HRT FINANCIAL#55 · 363,147 sh	363,147	$7.9M	0.02%	+308.5%
56	AMERIPRISE FINANCIAL#56 · 346,852 sh	346,852	$7.6M	<0.01%	+22.0%
57	Hennion & Walsh Asset Management#57 · 342,883 sh	342,883	$7.5M	—	+59.6%
58	Jones Hill Capital#58 · 340,000 sh	340,000	$7.4M	1.58%	New
59	DAFNA Capital Management#59 · 335,255 sh	335,255	$7.3M	1.40%	+54.2%
60	ENVESTNET ASSET MANAGEMENT#60 · 327,617 sh	327,617	$7.2M	<0.01%	+682.4%
61	RENAISSANCE TECHNOLOGIES#61 · 321,600 sh	321,600	$7.0M	<0.01%	-35.4%
62	Brevan Howard Capital Management#62 · 309,065 sh	309,065	$6.8M	0.05%	+50.9%
63	Alyeska Investment Group, L.P.#63 · 308,507 sh	308,507	$6.7M	0.02%	New
64	Verition Fund Management#64 · 304,939 sh	304,939	$6.7M	<0.01%	New
65	MACKENZIE FINANCIAL#65 · 280,079 sh	280,079	$6.1M	<0.01%	New
66	CITADEL ADVISORS#66 · 258,278 sh	258,278	$5.6M	<0.01%	-59.1%
67	Trexquant Investment#67 · 255,949 sh	255,949	$5.6M	0.03%	+26.8%
68	SECTOR GAMMA AS#68 · 241,739 sh	241,739	$5.3M	1.15%	-15.5%
69	Schonfeld Strategic Advisors#69 · 236,717 sh	236,717	$5.2M	0.02%	-9.2%
70	JPMORGAN CHASE#70 · 231,446 sh	231,446	$5.1M	<0.01%	-10.5%
71	Pinnacle Financial Partners#71 · 217,173 sh	217,173	$4.7M	0.03%	+7.4%
72	Man Group plc#72 · 213,703 sh	213,703	$4.7M	<0.01%	+17.4%
73	Y-Intercept (Hong Kong) Ltd#73 · 212,713 sh	212,713	$4.6M	—	New
74	HEALTHCARE OF ONTARIO PENSION PLAN FUND#74 · 207,250 sh	207,250	$4.5M	<0.01%	-37.5%
75	Pictet Asset Management Holding SA#75 · 207,936 sh	207,936	$4.5M	<0.01%	+1582.9%
76	Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insuran#76 · 200,000 sh	200,000	$4.4M	1.15%	0.0%
77	CITIGROUP#77 · 195,703 sh	195,703	$4.3M	<0.01%	+862.5%
78	SEI INVESTMENTS#78 · 193,134 sh	193,134	$4.2M	<0.01%	-11.2%
79	NOMURA ASSET MANAGEMENT INTERNATIONAL#79 · 180,000 sh	180,000	$3.9M	<0.01%	0.0%
80	Swiss National Bank#80 · 168,100 sh	168,100	$3.7M	<0.01%	+4.2%
81	Atom Investors#81 · 162,524 sh	162,524	$3.6M	0.32%	+4.2%
82	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#82 · 161,323 sh	161,323	$3.5M	<0.01%	+7.7%
83	SummitTX Capital, L.P.#83 · 140,797 sh	140,797	$3.1M	0.08%	+112.2%
84	Invesco Ltd.#84 · 138,060 sh	138,060	$3.0M	<0.01%	-45.4%
85	Russell Investments Group, Ltd.#85 · 135,012 sh	135,012	$3.0M	<0.01%	+33.0%
86	TORRAY#86 · 133,835 sh	133,835	$2.9M	0.39%	+27.6%
87	RHUMBLINE ADVISERS#87 · 132,358 sh	132,358	$2.9M	<0.01%	+15.3%
88	WELLS FARGO & COMPANY#88 · 130,054 sh	130,054	$2.8M	<0.01%	+61.8%
89	PRICE T ROWE ASSOCIATES#89 · 128,199 sh	128,199	$2.8M	<0.01%	+19.7%
90	Pale Fire Capital SE#90 · 125,550 sh	125,550	$2.7M	0.19%	-55.9%
91	CAPITAL FUND MANAGEMENT S.A.#91 · 125,091 sh	125,091	$2.7M	0.01%	-14.1%
92	WELLINGTON MANAGEMENT GROUP LLP#92 · 124,241 sh	124,241	$2.7M	<0.01%	+0.5%
93	PFM Health Sciences#93 · 118,422 sh	118,422	$2.6M	0.22%	-51.7%
94	SCHRODER INVESTMENT MANAGEMENT GROUP#94 · 115,208 sh	115,208	$2.5M	<0.01%	New
95	ALLIANCEBERNSTEIN L.P.#95 · 106,040 sh	106,040	$2.5M	<0.01%	-63.3%
96	Rafferty Asset Management#96 · 97,787 sh	97,787	$2.1M	<0.01%	-21.6%
97	DEUTSCHE BANK AG\#97 · 95,315 sh	95,315	$2.1M	<0.01%	+27.1%
98	HUSSMAN STRATEGIC ADVISORS#98 · 84,000 sh	84,000	$1.8M	0.42%	New
99	Aquatic Capital Management#99 · 78,922 sh	78,922	$1.7M	0.06%	+14.2%
100	WINTON GROUP Ltd#100 · 76,500 sh	76,500	$1.7M	0.05%	+642.7%

Funds that sold out of SNDX in Q2 2026 (39)

Held SNDX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held SNDX in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Point72 Asset Management, L.P.1,985,547 sh	1,985,547	$46.4M
StemPoint Capital1,215,743 sh	1,215,743	$28.4M
Integral Health Asset Management350,000 sh	350,000	$8.2M
JANE STREET GROUP335,531 sh	335,531	$7.8M
CANADA PENSION PLAN INVESTMENT BOARD229,600 sh	229,600	$5.4M
ESSEX INVESTMENT MANAGEMENT198,985 sh	198,985	$4.6M
Cinctive Capital Management117,319 sh	117,319	$2.7M
ExodusPoint Capital Management105,051 sh	105,051	$2.5M
Yelin Lapidot Management Ltd.96,297 sh	96,297	$2.2M
TUDOR INVESTMENT ET AL69,059 sh	69,059	$1.6M
Hudson Bay Capital Management62,330 sh	62,330	$1.5M
MARSHALL WACE, LLP54,274 sh	54,274	$1.3M
Neo Ivy Capital Management53,149 sh	53,149	$1.2M
Clearline Capital43,413 sh	43,413	$1.0M
Legato Capital Management41,376 sh	41,376	$966.5K
Voleon Capital Management36,633 sh	36,633	$855.7K
FOX RUN MANAGEMENT, L.L.C.21,993 sh	21,993	$494.4K
AXQ CAPITAL18,340 sh	18,340	$428.4K
ADAR1 Capital Management17,500 sh	17,500	$408.8K
RAYMOND JAMES FINANCIAL13,841 sh	13,841	$323.3K
TWO SIGMA SECURITIES13,009 sh	13,009	$303.9K
Bleakley Financial Group12,488 sh	12,488	$291.7K
Quadrature Capital Ltd12,129 sh	12,129	$283.3K
Merit Financial Group10,954 sh	10,954	$255.9K
FARALLON CAPITAL MANAGEMENT10,000 sh	10,000	$233.6K
COMMONWEALTH EQUITY SERVICES9,775 sh	9,775	$228.3K
CAPTRUST FINANCIAL ADVISORS9,563 sh	9,563	$223.3K
ACADIAN ASSET MANAGEMENT2,892 sh	2,892	$67.0K
Quantbot Technologies2,350 sh	2,350	$54.9K
MAI Capital Management2,161 sh	2,161	$50.5K
QUADRANT CAPITAL GROUP6 sh	6	$49.0K
Walleye Trading416 sh	416	$9.7K
Truvestments Capital177 sh	177	$4.1K
Root Financial Partners171 sh	171	$4.0K
Wealth Preservation Advisors104 sh	104	$2.4K
Basecamp Wealth Advisors59 sh	59	$1.4K
Bare Financial Services23 sh	23	$537.00
JPL Wealth Management5 sh	5	$117.00
Keating Financial Advisory Services4 sh	4	$93.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.