SEI INVESTMENTS CO - Common Stock (SEIC)

Historical Holders from Q1 2014 to Q3 2025

Symbol: SEIC on Nasdaq
Type / Class: Equity / Common Stock
Shares outstanding: 123,638,046
All holders as of 30 Sep 2025: Q3 2025
Total 13F shares, excl. options: 88,252,521
Holdings value: $7,487,822,797
% of all portfolios: 0.006%
Number of holders: 538
Number of buys: 261
Number of sells: -240
Average buys %: +0%
Average sells %: -0%

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of SEI INVESTMENTS CO - Common Stock (SEIC)

Filer	Ownership	Change %	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
LOOMIS SAYLES & CO L P	7.26%	+1.7%	$761,623,962	+$7,581,772	8,976,122	+1%	Loomis, Sayles & Co., L.P.	30 Sep 2025
BlackRock, Inc.	6.8%		$763,130,029		8,492,433		BlackRock, Inc.	30 Jun 2025

Institutional Holders of SEI INVESTMENTS CO - Common Stock (SEIC)

Period	Reported Shares, Excl. Options	Value, Excl. Options	Change	Puts Notional Value	Calls Notional Value	Price	Investors
2025 Q3	88,252,521	$7,487,822,797	-$154,646,838	$1,425,480	$8,525,096	$84.85	538
2025 Q2	89,996,791	$8,086,749,486	-$241,304,437	$0	$5,047,072	$89.86	560
2025 Q1	93,078,509	$7,221,081,350	+$135,974,270	$427,198	$3,928,078	$77.63	540
2024 Q4	90,860,819	$7,496,265,900	-$84,798,545	$783,560	$5,559,152	$82.48	535
2024 Q3	91,408,967	$6,326,418,115	-$89,117,798	$14,668,280	$8,115,987	$69.19	494
2024 Q2	92,827,829	$6,005,002,909	-$72,432,990	$13,830,722	$7,575,199	$64.69	488
2024 Q1	93,963,846	$6,750,927,822	+$91,087,323	$553,630	$4,874,820	$71.9	470
2023 Q4	92,671,469	$5,889,760,642	-$43,838,780	$82,615	$1,576,040	$63.55	486
2023 Q3	93,440,911	$5,627,046,231	+$39,881,264	$60,230	$1,319,037	$60.23	453
2023 Q2	92,699,611	$5,525,502,035	-$5,689,252	$59,620	$5,416,722	$59.62	451
2023 Q1	92,989,428	$5,350,400,582	-$21,158,711	$328,035	$2,302,000	$57.55	435
2022 Q4	93,328,471	$5,446,090,348	+$313,819,699	$256,520	$874,500	$58.3	439
2022 Q3	94,253,545	$4,625,052,598	-$103,218,911	$804,000	$765,000	$49.05	422
2022 Q2	95,708,791	$5,170,371,695	-$474,050	$330,000	$303,000	$54.02	442
2022 Q1	96,287,080	$5,803,728,067	-$63,861,826	$11,771,000	$981,000	$60.21	449
2021 Q4	97,405,421	$5,938,118,719	+$30,926,527	$1,798,000	$317,000	$60.94	464
2021 Q3	96,609,015	$5,729,571,656	-$53,360,996	$2,143,000	$285,000	$59.3	436
2021 Q2	97,510,206	$6,041,796,603	-$29,237,166	$3,149,000	$2,807,000	$61.97	432
2021 Q1	98,014,219	$5,970,919,170	+$17,213,923	$1,620,000	$725,000	$60.93	434
2020 Q4	97,723,072	$5,615,781,729	-$101,198,397	$2,851,000	$2,379,000	$57.47	431
2020 Q3	101,188,427	$5,128,751,863	-$239,316,375	$1,724,000	$1,075,000	$50.72	416
2020 Q2	104,231,279	$5,727,336,107	-$294,400,930	$4,222,000	$1,028,000	$54.98	415
2020 Q1	110,089,700	$5,103,615,060	-$81,271,655	$2,641,000	$1,196,000	$46.34	404
2019 Q4	111,665,442	$7,309,309,517	+$459,106,304	$118,000	$0	$65.48	430
2019 Q3	104,403,523	$6,185,339,649	-$90,044,413	$474,000	$219,000	$59.25	411
2019 Q2	105,937,030	$5,942,674,215	+$22,084,605	$1,217,000	$494,000	$56.1	404
2019 Q1	106,174,187	$5,547,548,272	-$25,342,406	$1,035,000	$2,446,000	$52.25	406
2018 Q4	106,691,857	$4,928,621,292	-$148,377,138	$915,000	$1,002,000	$46.2	395
2018 Q3	109,545,256	$6,688,346,983	-$19,811,437	$4,363,000	$1,668,000	$61.1	411
2018 Q2	110,273,483	$6,891,724,003	-$171,550,813	$1,798,000	$1,682,000	$62.52	425
2018 Q1	112,385,902	$8,414,536,227	+$110,481,719	$11,319,000	$2,443,000	$74.91	422
2017 Q4	111,092,649	$7,981,204,813	-$103,487,721	$11,979,000	$1,854,000	$71.86	416
2017 Q3	112,437,632	$6,865,936,914	+$163,020,241	$2,553,000	$1,648,000	$61.06	359
2017 Q2	110,046,356	$5,918,336,121	-$71,317,682	$333,000	$984,000	$53.78	361
2017 Q1	111,523,623	$5,625,180,378	+$559,361,746	$202,000	$1,104,000	$50.44	352
2016 Q4	112,197,622	$5,537,932,607	-$67,960,675	$1,689,000	$1,253,000	$49.36	349
2016 Q3	113,604,658	$5,177,827,075	-$28,589,478	$3,047,000	$629,000	$45.61	348
2016 Q2	114,835,345	$5,524,479,574	-$10,238,380	$6,331,000	$670,000	$48.11	353
2016 Q1	115,158,417	$4,959,836,302	-$12,733,266	$646,000	$822,000	$43.05	346
2015 Q4	114,135,767	$5,980,540,064	+$83,402,623	$94,000	$215,000	$52.4	356
2015 Q3	112,486,924	$5,424,608,338	+$23,276,336	$2,450,000	$14,869,000	$48.23	348
2015 Q2	114,597,749	$5,618,685,097	+$28,154,669	$794,000	$11,767,000	$49.03	326
2015 Q1	114,115,142	$5,029,323,121	+$5,451,449	$26,000		$44.09	318
2014 Q4	114,141,252	$4,570,545,757	+$5,747,808	$0		$40.04	320
2014 Q3	113,570,985	$4,106,725,558	+$31,537,224	$15,000		$36.16	315
2014 Q2	112,831,845	$3,697,433,406	+$26,324,781			$32.77	301
2014 Q1	111,695,123	$3,752,576,298	-$588,609			$33.61	297