Who owns American Public Education, Inc. (APEI)
Which tracked institutional funds hold APEI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See APEI company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on APEI is one-sided between 2025-Q4 and 2026-Q1: 97 added or opened and 20 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
APEI’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes APEI more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in APEI divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 205 tracked filers holding APEI, 112 increased or opened the position and 92 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in APEI between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 25
- VANGUARD CAPITAL MANAGEMENT LLC$40M
- VANGUARD PORTFOLIO MANAGEMENT LLC$19M
- JANE STREET GROUP, LLC$15M
- OSSIAM$11M
- OBERWEIS ASSET MANAGEMENT INC/$7M
- VANGUARD FIDUCIARY TRUST CO$7M
Full exits 4
- VANGUARD GROUP INC$37M
- Bastion Asset Management Inc.$8M
- SEGALL BRYANT & HAMILL, LLC$3M
- Polar Asset Management Partners Inc.$3M
Largest adds
- FMR LLC$45M
- BlackRock, Inc.$26M
- RENAISSANCE TECHNOLOGIES LLC$16M
- BANK OF AMERICA CORP /DE/$14M
- AMERICAN CENTURY COMPANIES INC$14M
- DIMENSIONAL FUND ADVISORS LP$13M
Largest trims
- MORGAN STANLEY$9M
- AMERIPRISE FINANCIAL INC$7M
- Pacer Advisors, Inc.$4M
- Point72 Asset Management, L.P.$4M
- CenterBook Partners LP$4M
- CSM Advisors, LLC$3M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 1,450,355 | $82M | 7.1% | 2026-Q1 |
| 325 CAPITAL LLC trimmed | 1,183,732 | $67M | 5.8% | 2026-Q1 |
| Divisadero Street Capital Management, LP trimmed | 1,052,069 | $60M | 5.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 920,220 | $52M | 4.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 799,175 | $45M | 3.9% | 2026-Q1 |
| FMR LLC added | 788,121 | $45M | 3.9% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 761,601 | $43M | 3.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 701,018 | $40M | 3.4% | 2026-Q1 |
| Prescott Group Capital Management, L.L.C. trimmed | 679,749 | $39M | 3.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 658,835 | $37M | 3.2% | 2026-Q1 |
| No Street GP LP trimmed | 647,588 | $37M | 3.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 620,481 | $35M | 3.0% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 558,075 | $32M | 2.7% | 2026-Q1 |
| Driehaus Capital Management LLC added | 532,295 | $30M | 2.6% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 483,130 | $27M | 2.4% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 384,931 | $22M | 1.9% | 2026-Q1 |
| STATE STREET CORP added | 357,946 | $20M | 1.8% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 337,819 | $19M | 1.7% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 326,443 | $19M | 1.6% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 261,485 | $15M | 1.3% | 2026-Q1 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 244,637 | $14M | 1.2% | 2026-Q1 |
| UBS Group AG trimmed | 234,623 | $13M | 1.2% | 2026-Q1 |
| Nuveen, LLC added | 219,582 | $12M | 1.1% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 203,353 | $12M | 1.0% | 2026-Q1 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. trimmed | 195,000 | $11M | 1.0% | 2026-Q1 |
| OSSIAM new | 193,449 | $11M | 0.9% | 2026-Q1 |
| Assenagon Asset Management S.A. trimmed | 177,309 | $10M | 0.9% | 2026-Q1 |
| NORTHERN TRUST CORP added | 173,338 | $10M | 0.9% | 2026-Q1 |
| Manatuck Hill Partners, LLC added | 171,466 | $10M | 0.8% | 2026-Q1 |
| Pacific Ridge Capital Partners, LLC added | 167,651 | $10M | 0.8% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 158,120 | $9M | 0.8% | 2026-Q1 |
| 4D Advisors, LLC trimmed | 150,000 | $9M | 0.7% | 2026-Q1 |
| OBERWEIS ASSET MANAGEMENT INC/ new | 130,400 | $7M | 0.6% | 2026-Q1 |
| Invesco Ltd. added | 125,884 | $7M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 123,658 | $7M | 0.6% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 121,215 | $7M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 114,630 | $7M | 0.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 113,869 | $6M | 0.6% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 112,996 | $6M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 100,194 | $6M | 0.5% | 2026-Q1 |
| Pacer Advisors, Inc. added | 108,072 | $5M | 0.4% | 2026-Q1 |
| Informed Momentum Co LLC added | 87,646 | $5M | 0.4% | 2026-Q1 |
| CSM Advisors, LLC trimmed | 85,485 | $5M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 84,637 | $5M | 0.4% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 81,856 | $5M | 0.4% | 2026-Q1 |
| HRT FINANCIAL LP added | 79,969 | $5M | 0.4% | 2026-Q1 |
| SEI INVESTMENTS CO added | 77,257 | $4M | 0.4% | 2026-Q1 |
| MARSHALL WACE, LLP added | 76,772 | $4M | 0.4% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP added | 71,758 | $4M | 0.4% | 2026-Q1 |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC trimmed | 69,955 | $4M | 0.3% | 2026-Q1 |
| CANNELL CAPITAL LLC trimmed | 68,329 | $4M | 0.3% | 2026-Q1 |
| Atom Investors LP new | 67,751 | $4M | 0.3% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 67,662 | $4M | 0.3% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 67,057 | $4M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 65,889 | $4M | 0.3% | 2026-Q1 |
| LORD, ABBETT & CO. LLC trimmed | 64,686 | $4M | 0.3% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 62,666 | $4M | 0.3% | 2026-Q1 |
| CREDIT AGRICOLE S A | 59,253 | $3M | 0.3% | 2026-Q1 |
| Trexquant Investment LP added | 53,547 | $3M | 0.3% | 2026-Q1 |
| AWM Investment Company, Inc. trimmed | 53,500 | $3M | 0.3% | 2026-Q1 |
| CROWN ADVISORS MANAGEMENT, INC. | 50,000 | $3M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 49,842 | $3M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 48,512 | $3M | 0.2% | 2026-Q1 |
| Fisher Asset Management, LLC trimmed | 47,046 | $3M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 44,030 | $3M | 0.2% | 2026-Q1 |
| CWA Asset Management Group, LLC new | 43,729 | $2M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 40,767 | $2M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 40,105 | $2M | 0.2% | 2026-Q1 |
| GLOBEFLEX CAPITAL L P added | 39,714 | $2M | 0.2% | 2026-Q1 |
| Integrated Quantitative Investments LLC added | 38,697 | $2M | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 36,456 | $2M | 0.2% | 2026-Q1 |
| Y-Intercept (Hong Kong) Ltd added | 35,323 | $2M | 0.2% | 2026-Q1 |
| Quantbot Technologies LP added | 33,077 | $2M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 31,617 | $2M | 0.2% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 30,460 | $2M | 0.1% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 29,908 | $2M | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 28,892 | $2M | 0.1% | 2026-Q1 |
| Empowered Funds, LLC trimmed | 28,464 | $2M | 0.1% | 2026-Q1 |
| BLAIR WILLIAM & CO/IL trimmed | 28,080 | $2M | 0.1% | 2026-Q1 |
| LSV ASSET MANAGEMENT trimmed | 27,500 | $2M | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP added | 26,874 | $2M | 0.1% | 2026-Q1 |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 24,904 | $1M | 0.1% | 2026-Q1 |
| CAXTON ASSOCIATES LLP added | 22,731 | $1M | 0.1% | 2026-Q1 |
| Orion Porfolio Solutions, LLC trimmed | 22,078 | $1M | 0.1% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC new | 21,796 | $1M | 0.1% | 2026-Q1 |
| Virtu Financial LLC trimmed | 21,569 | $1M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 21,276 | $1M | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 19,594 | $1M | 0.1% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 19,041 | $1M | 0.1% | 2026-Q1 |
| SHEETS SMITH WEALTH MANAGEMENT trimmed | 18,773 | $1M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 990,280 | $37M | 3.2% | 2025-Q4 stale |
| Bastion Asset Management Inc. added | 212,964 | $8M | 0.7% | 2025-Q4 stale |
| Foundry Partners, LLC trimmed | 265,475 | $6M | 0.5% | 2025-Q1 stale |
| Hillsdale Investment Management Inc. added | 169,387 | $5M | 0.4% | 2025-Q2 stale |
| Simcoe Capital Management, LLC new | 92,825 | $4M | 0.3% | 2025-Q3 stale |
| SEGALL BRYANT & HAMILL, LLC trimmed | 85,528 | $3M | 0.3% | 2025-Q4 stale |
| Polar Asset Management Partners Inc. trimmed | 76,500 | $3M | 0.2% | 2025-Q4 stale |
| Sheets Smith Investment Management trimmed | 45,413 | $2M | 0.2% | 2025-Q3 stale |
| SummerHaven Investment Management, LLC added | 45,110 | $1M | 0.1% | 2025-Q2 stale |
| Orion Portfolio Solutions, LLC trimmed | 48,269 | $1M | 0.1% | 2025-Q1 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.