Waystar Holding Corp.

WAY

Exchange: Nasdaq
Industry: Services-Computer Integrated Systems Design
SEC CIK: 0001990354

SEC filings (opens in a new tab)

In the last 90 days, Waystar Holding Corp. insiders filed 0 open-market purchases and 3 sales; 301 institutions reported holding it in 13F filings for Q2 2026, worth $4.35B in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Waystar Holding Corp. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of WAY: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	301	7	300	+6
Shares	185.9M	390.4K	199.4M	+13.8M (+7.4%)
Value	$7.06B	$14.8M	$6.53B	−$512.8M (−7.3%)

7 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (73)

Institutions that held Waystar Holding Corp. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to WAY in Q4 2025
Institution	Shares	Value	% of portfolio
Advent International Corp	11,059,899	$362.2M	7.50%
Bamco Inc	1,393,634	$45.6M	0.12%
Norges Bank	1,362,650	$44.6M	0.00%
Lykos Global Management, LP	1,000,000	$32.8M	23.17%
Bain Capital Venture Investors, LLC	882,965	$28.9M	11.35%
Fort Washington Investment Advisors Inc	640,810	$21.0M	0.11%
Sio Capital Management, LLC	613,725	$20.1M	3.33%
Capital Research Global Investors	495,000	$16.2M	0.00%
Kingdon Capital Management, L.L.C.	414,549	$13.6M	2.08%
Mawer Investment Management Ltd.	337,732	$11.1M	0.06%
SummitTX Capital, L.P.	181,487	$5.94M	0.18%
Ra Capital Management, L.P.	144,400	$4.73M	0.05%
Advisors Preferred, LLC	126,718	$3.98M	0.65%
Falcon Edge Capital, LP	112,895	$3.70M	0.45%
Citadel Advisors LLC	94,894	$3.11M	0.00%
Renaissance Capital LLC	69,393	$2.27M	1.64%
Aurora Investment Counsel	60,267	$1.97M	1.04%
Graham Capital Management, L.P.	39,511	$1.29M	0.04%
Elo Mutual Pension Insurance Co	33,582	$1.10M	0.02%
Guggenheim Capital LLC	21,726	$711.5K	0.01%
Emerald Mutual Fund Advisers Trust	16,388	$536.7K	0.03%
F/M Investments LLC	16,388	$536.7K	0.02%
Twin Tree Management, LP	13,970	$457.5K	0.05%
Vontobel Holding Ltd.	10,333	$338.4K	0.00%
Connor, Clark & Lunn Investment Management Ltd.	10,090	$330.4K	0.00%
Swiss Life Asset Management Ltd	10,019	$328.1K	0.00%
Walleye Trading LLC	9,945	$325.7K	0.01%
City Center Advisors, LLC	9,926	$325.1K	0.30%
Evergreen Capital Management LLC	9,582	$313.8K	0.01%
Mangrove Partners	8,861	$290.2K	0.02%
Gabelli Funds LLC	8,500	$278.4K	0.00%
Toroso Investments, LLC	8,343	$273.2K	0.00%
Oxford Asset Management LLP	8,055	$263.8K	0.09%
Jump Financial, LLC	7,661	$250.9K	0.00%
Blueshift Asset Management, LLC	7,408	$242.6K	0.07%
CIBC World Markets Corp	7,290	$238.7K	0.00%
Shay Capital LLC	7,000	$229.3K	0.04%
Guilbault Capital LLC	6,526	$213.7K	0.24%
MML Investors Services, LLC	6,325	$207.1K	0.00%
FORA Capital, LLC	7,346	$202.3K	0.02%
SBI Okasan Asset Management Co.Ltd.	5,800	$191.1K	0.01%
Simplex Trading, LLC	5,203	$170.4K	0.00%
New Age Alpha Advisors, LLC	5,181	$169.7K	0.01%
Los Angeles Capital Management LLC	2,533	$93.9K	0.00%
Exchange Traded Concepts, LLC	2,575	$84.3K	0.00%
Horizon Investments, LLC	2,575	$84.3K	0.00%
1620 Investment Advisors, Inc.	2,366	$77.5K	0.05%
Jones Financial Companies LLLP	2,230	$73.0K	0.00%
Danske Bank A/S	1,600	$52.4K	0.00%
Kemnay Advisory Services Inc.	670	$21.9K	0.00%
Olistico Wealth, LLC	250	$8.19K	0.00%
ORG Partners LLC	215	$7.04K	0.00%
Truvestments Capital LLC	179	$5.86K	0.00%
Quarry LP	123	$4.03K	0.00%
Torren Management, LLC	122	$4.00K	0.00%
SageView Advisory Group, LLC	93	$3.05K	0.00%
J.Safra Asset Management Corp	93	$3.05K	0.00%
High Note Wealth, LLC	89	$2.92K	0.00%
Pinnacle Wealth Planning Services, Inc.	53	$1.74K	0.00%
CIBC Private Wealth Group, LLC	28	$917	0.00%
Flagship Harbor Advisors, LLC	24	$786	0.00%
Keating Financial Advisory Services, Inc.	23	$753	0.00%
TD Private Client Wealth LLC	18	$590	0.00%
Rossby Financial, LCC	18	$590	0.00%
Root Financial Partners, LLC	16	$524	0.00%
UMA Financial Services, Inc.	11	$361	0.00%
Assetmark, Inc	9	$295	0.00%
JFS Wealth Advisors, LLC	9	$295	0.00%
Gilpin Wealth Management, LLC	3	$99	0.00%
Hughes Financial Services, LLC	3	$98	0.00%
Dunhill Financial, LLC	3	$95	0.00%
ROSS\JOHNSON & Associates LLC	2	$66	0.00%
Huntington National Bank	1	$33	0.00%

Sold out (67)

Institutions that held Waystar Holding Corp. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of WAY in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Fuller & Thaler Asset Management, Inc.	1,519,779	$57.6M
Hood River Capital Management LLC	1,012,172	$38.4M
Two Sigma Advisers, LP	764,121	$29.0M
Farallon Capital Management, L.L.C.	750,000	$28.4M
Fortress Investment Group LLC	686,071	$26.0M
Lord, Abbett & Co. LLC	585,774	$22.2M
Spence Asset Management	420,897	$16.0M
Capitolis Liquid Global Markets LLC	385,600	$14.6M
Soros Fund Management LLCSuperinvestorSoros Fund Management	337,554	$12.8M
Man Group plc	319,707	$12.1M
Woodline Partners LP	275,636	$10.5M
HSBC Holdings PLC	233,522	$8.85M
Monashee Investment Management LLC	150,000	$5.69M
Roubaix Capital, LLC	118,092	$4.48M
Marshall Wace, LLP	115,416	$4.38M
HBK Investments L P	100,000	$3.79M
ExodusPoint Capital Management, LP	92,496	$3.51M
Advantage Alpha Capital Partners LP	79,109	$3.00M
Caisse de Depot Et Placement du Quebec	77,091	$2.92M
Colony Group, LLC	49,022	$1.86M
American Century Companies Inc	47,675	$1.81M
Lazard Asset Management LLC	44,259	$1.68M
Susquehanna Portfolio Strategies, LLC	40,543	$1.54M
Fieldview Capital Management, LLC	34,320	$1.30M
Walleye Capital LLC	30,992	$1.18M
Aristides Capital LLC	22,000	$834.2K
Quantbot Technologies LP	21,991	$833.9K
Legato Capital Management LLC	20,200	$766.0K
Natixis Advisors, L.P.	16,107	$611.0K
DnB Asset Management AS	15,965	$605.4K
Pathstone Holdings, LLC	14,951	$566.9K
Harbour Capital Advisors, LLC	14,130	$535.7K
Morris Retirement Advisors, LLC	12,979	$492.2K
Cynosure Management, LLC	10,100	$383.0K
Occudo Quantitative Strategies LP	9,572	$363.0K
HMS Capital Management, LLC	9,379	$355.7K
Custom Index Systems, LLC	8,537	$323.7K
CIBC Asset Management Inc	7,507	$284.7K
WoodTrust Financial Corp	7,500	$284.0K
Verdence Capital Advisors LLC	7,218	$283.9K
Carnegie Capital Asset Management, LLC	7,002	$265.5K
Petrus Trust Company, LTA	6,765	$256.5K
Cambridge Investment Research Advisors, Inc.	6,593	$250.0K
Caption Management, LLC	6,500	$246.5K
Mariner, LLC	6,083	$230.7K
Diametric Capital, LP	5,767	$218.7K
Hohimer Wealth Management, LLC	5,700	$216.1K
Ground Swell Capital, LLC	5,624	$213.3K
Ninepoint Partners LP	4,252	$161.2K
Gen-Wealth Partners Inc	2,510	$95.2K
Wealthspire Advisors, LLC	830	$31.5K
Antipodes Partners Ltd	823	$31.2K
NBC Securities, Inc.	438	$16.6K
FNY Investment Advisers, LLC	400	$15.0K
Larson Financial Group LLC	369	$14.0K
Advisory Services Network, LLC	315	$11.9K
Hillsdale Investment Management Inc.	200	$7.58K
Ci Investments Inc.	137	$5.00K
Versant Capital Management, Inc	130	$4.93K
Caitong International Asset Management Co., Ltd	56	$2.12K
Bessemer Group Inc	42	$2.00K
Parkside Financial Bank & Trust	34	$1.29K
Bare Financial Services, Inc	14	$531
Abound Wealth Management	12	$456
Signaturefd, LLC	7	$265
IFP Advisors, Inc	7	$265
Rakuten Investment Management, Inc.	22,780	–

Not filed for Q4 2025 yet (7)

Institutions that held Waystar Holding Corp. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding WAY in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Cubist Systematic Strategies, LLC	239,159	$9.07M
Otter Creek Advisors, LLC	99,146	$3.76M
Wolverine Trading, LLC	27,666	$1.04M
Point72 (DIFC) Ltd	12,600	$477.8K
CIBC Bancorp USA Inc.	11,665	$442.3K
Point72 Asia (Singapore) Pte. Ltd.	124	$4.72K
Point72 Europe (London) LLP	4	$147