Company · Ownership research

HEALTHSTREAM INC HSTM

CIK 0001095565 · CUSIP 42222N103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 42222N103 (HSTM), not CUSIP 42222N903 (HSTM), and does not merge CUSIPs.

This page lists the top 20 of 198 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$79.77M 3,851,929 shares	0.00%	+219.55K(+6.00%)Added	SEC filing ↗ May 13, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$30.16M 1,456,043 shares	0.01%	+87.18K(+6.40%)Added	SEC filing ↗ May 7, 2026	▾
03	Copeland Capital Management, LLC CIK 1541743 · View history	$26.44M 1,276,739 shares	0.59%	+389.19K(+43.80%)Added	SEC filing ↗ May 6, 2026	▾
04	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$21.70M 1,047,927 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
05	STATE STREET CORP CIK 93751 · View history	$20.62M 995,557 shares	0.00%	+15.29K(+1.60%)Added	SEC filing ↗ May 15, 2026	▾
06	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$19.09M 921,846 shares	0.00%	—	SEC filing ↗ May 8, 2026	▾
07	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$17.49M 844,420 shares	0.01%	+624.87K(+284.60%)Added	SEC filing ↗ May 15, 2026	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$14.80M 714,747 shares	0.00%	-43.26K(-5.70%)Reduced	SEC filing ↗ May 15, 2026	▾
09	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$9.90M 477,848 shares	0.02%	+2.38K(+0.50%)Added	SEC filing ↗ May 14, 2026	▾
10	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$9.57M 453,738 shares	0.00%	+841(+0.20%)Added	SEC filing ↗ May 13, 2026	▾
11	First Eagle Investment Management, LLC CIK 1325447 · Amended · View history	$8.82M 425,698 shares	0.01%	+12.00K(+2.90%)Added	SEC filing ↗ May 14, 2026	▾
12	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$7.83M 377,945 shares	0.00%	+65.81K(+21.10%)Added	SEC filing ↗ May 14, 2026	▾
13	MORGAN STANLEY CIK 895421 · View history	$7.64M 368,986 shares	0.00%	+115.17K(+45.40%)Added	SEC filing ↗ May 15, 2026	▾
14	NORTHERN TRUST CORP CIK 73124 · View history	$7.49M 361,677 shares	0.00%	+11.82K(+3.40%)Added	SEC filing ↗ May 14, 2026	▾
15	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$7.21M 348,730 shares	0.01%	-498.77K(-58.90%)Reduced	SEC filing ↗ May 13, 2026	▾
16	Robeco Institutional Asset Management B.V. CIK 1418773 · View history	$6.49M 313,359 shares	0.01%	-27.15K(-8.00%)Reduced	SEC filing ↗ Apr 21, 2026	▾
17	JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history	$5.97M 288,179 shares	0.03%	+84.08K(+41.20%)Added	SEC filing ↗ May 15, 2026	▾
18	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$5.68M 274,458 shares	0.00%	+120.32K(+78.10%)Added	SEC filing ↗ May 15, 2026	▾
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$5.50M 265,644 shares	0.00%	+24.86K(+10.30%)Added	SEC filing ↗ May 15, 2026	▾
20	Invenomic Capital Management LP CIK 1769456 · View history	$4.98M 240,370 shares	0.23%	+240.37KNew	SEC filing ↗ May 15, 2026	▾

Showing 20 / 198 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

198

Cancelled or null records excluded

Disclosed shares

21,499,686

Not deduplicated across managers

Disclosed value

$445.49M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

HEALTHSTREAM INC · Q1 2026

Explore all 198 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.