There is a long list of 265 institutional holders of IRWD within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of IRWD by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-IRWD table below, the initial column indicates the name of each top institutional holder of IRWD, with a link to that fund's top holdings. The next columns indicate the amount of IRWD stock held by each of the institutional holders of IRWD, followed by the IRWD position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	25,980,308	$297,215	12/31/2023
IRWD	25,980,308	$297,215	12/31/2023
Sarissa Capital Management LP	16,390,000	$187,502	12/31/2023
IRWD	16,390,000	$187,502	12/31/2023
Vanguard Group Inc.	16,033,545	$183,424	12/31/2023
IRWD	16,033,545	$183,424	12/31/2023
State Street Corp	11,532,088	$131,927	12/31/2023
IRWD	11,532,088	$131,927	12/31/2023
Renaissance Technologies LLC	6,595,898	$75,457	12/31/2023
IRWD	6,595,898	$75,457	12/31/2023
Balyasny Asset Management LLC		$69,954	12/31/2023
NOTE 0	44,500,000	$46,774	12/31/2023
NOTE 1	25,000,000	$27,222	12/31/2023
Put	375,000	$4,290	12/31/2023
IRWD	21,660	$248	12/31/2023
Armistice Capital LLC	5,700,000	$65,208	12/31/2023
IRWD	5,700,000	$65,208	12/31/2023
Credit Suisse AG	5,612,113	$64,203	12/31/2023
IRWD	5,612,113	$64,203	12/31/2023
LSV Asset Management	6,151,001	$53,575	03/31/2024
IRWD	6,151,001	$53,575	03/31/2024
Camden Asset Management L P CA		$46,212	12/31/2023
CNV	42,651,000	$46,212	12/31/2023
Brown Capital Management LLC	3,709,431	$42,436	12/31/2023
IRWD	3,709,431	$42,436	12/31/2023
TENOR CAPITAL MANAGEMENT Co. L.P.		$36,335	12/31/2023
NOTE 0	34,375,000	$36,335	12/31/2023
Dimensional Fund Advisors LP	3,081,811	$35,256	12/31/2023
IRWD	3,081,811	$35,256	12/31/2023
Geode Capital Management LLC	3,080,463	$35,244	12/31/2023
IRWD	3,080,463	$35,244	12/31/2023
Jacobs Levy Equity Management Inc.	3,009,203	$34,425	12/31/2023
IRWD	3,009,203	$34,425	12/31/2023
Jupiter Asset Management Ltd.	2,270,042	$25,969	12/31/2023
IRWD	2,270,042	$25,969	12/31/2023
Point72 Asset Management L.P.	2,217,669	$25,370	12/31/2023
IRWD	2,217,669	$25,370	12/31/2023
Morgan Stanley	2,147,818	$24,571	12/31/2023
IRWD	2,147,818	$24,571	12/31/2023
Nuveen Asset Management LLC	1,836,325	$21,008	12/31/2023
IRWD	1,836,325	$21,008	12/31/2023
JPMorgan Chase & Co.		$20,034	12/31/2023
IRWD	1,454,881	$16,644	12/31/2023
BOND	3,211,000	$3,390	12/31/2023
Northern Trust Corp	1,588,392	$18,171	12/31/2023
IRWD	1,588,392	$18,171	12/31/2023
Driehaus Capital Management LLC	1,582,134	$18,100	12/31/2023
IRWD	1,582,134	$18,100	12/31/2023
Adage Capital Partners GP L.L.C.	1,511,789	$17,295	12/31/2023
IRWD	1,511,789	$17,295	12/31/2023
Man Group plc	1,425,389	$16,306	12/31/2023
IRWD	1,425,389	$16,306	12/31/2023
Checkpoint Capital L.P.		$15,787	12/31/2023
IRWD	880,000	$10,067	12/31/2023
Call	500,000	$5,720	12/31/2023
Calamos Advisors LLC		$15,597	12/31/2023
NOTE 1	9,500,000	$10,348	12/31/2023
NOTE 0	5,000,000	$5,249	12/31/2023
Two Sigma Advisers LP	1,341,800	$15,350	12/31/2023
IRWD	1,341,800	$15,350	12/31/2023
Glenmede Trust Co. NA	1,292,428	$14,785	12/31/2023
IRWD	1,292,428	$14,785	12/31/2023
Charles Schwab Investment Management Inc.	1,288,653	$14,742	12/31/2023
IRWD	1,288,653	$14,742	12/31/2023
Hotchkis & Wiley Capital Management LLC	1,140,470	$13,047	12/31/2023
IRWD	1,140,470	$13,047	12/31/2023
Goldman Sachs Group Inc.	1,081,665	$12,374	12/31/2023
IRWD	1,081,665	$12,374	12/31/2023
Jane Street Group LLC		$11,891	12/31/2023
NOTE 1	3,750,000	$4,035	12/31/2023
IRWD	296,911	$3,397	12/31/2023
NOTE 0	3,000,000	$3,146	12/31/2023
Call	114,800	$1,313	12/31/2023
Millennium Management LLC	972,135	$11,121	12/31/2023
IRWD	972,135	$11,121	12/31/2023
First Eagle Investment Management LLC	907,225	$10,379	12/31/2023
IRWD	907,225	$10,379	12/31/2023
Citigroup Inc.		$9,822	12/31/2023
Call	450,000	$5,148	12/31/2023
IRWD	362,000	$4,141	12/31/2023
NOTE 1	249,000	$270	12/31/2023
NOTE 0	252,000	$263	12/31/2023
Norges Bank	814,774	$9,321	12/31/2023
IRWD	814,774	$9,321	12/31/2023
Bank of New York Mellon Corp		$9,238	03/31/2024
IRWD	1,037,418	$9,036	03/31/2024
NOTE	200,000	$202	03/31/2024
Ameriprise Financial Inc.	787,048	$9,004	12/31/2023
IRWD	787,048	$9,004	12/31/2023
American Century Companies Inc.	777,399	$8,893	12/31/2023
IRWD	777,399	$8,893	12/31/2023
Bank of America Corp DE		$8,691	12/31/2023
IRWD	686,766	$7,857	12/31/2023
NOTE 0	800,000	$834	12/31/2023
Eventide Asset Management LLC	740,554	$8,472	12/31/2023
IRWD	740,554	$8,472	12/31/2023
Rafferty Asset Management LLC	701,770	$8,028	12/31/2023
IRWD	701,770	$8,028	12/31/2023
Hodges Capital Management Inc.	863,500	$7,521	03/31/2024
IRWD	863,500	$7,521	03/31/2024
Citadel Advisors LLC		$7,221	12/31/2023
IRWD	495,471	$5,668	12/31/2023
Call	141,900	$1,623	12/31/2023
Put	6,100	$70	12/31/2023
CSS LLC IL		$7,070	12/31/2023
NOTE 1	6,509,000	$7,070	12/31/2023
New York State Common Retirement Fund	809,002	$7,046	03/31/2024
IRWD	809,002	$7,046	03/31/2024
Principal Financial Group Inc.	804,900	$7,011	03/31/2024
IRWD	804,900	$7,011	03/31/2024
Two Sigma Investments LP	585,847	$6,702	12/31/2023
IRWD	585,847	$6,702	12/31/2023
Invesco Ltd.	558,027	$6,384	12/31/2023
IRWD	558,027	$6,384	12/31/2023
BNP Paribas Arbitrage SA		$5,772	03/31/2024
IRWD	612,600	$5,336	03/31/2024
Call	500	$436	03/31/2024

See All: Funds Holding IRWD
See Details: Top 10 Hedge Funds Holding IRWD
Also See: IRWD Insider Buying
Also See: IRWD Holdings Changes

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