American Public Education, Inc.
MX ˙ BMV ˙ US02913V1035
SecurityMX:APEI / American Public Education, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership21,276 shares
Latest Disclosed Value $ 1,210,173
Rhumbline Advisers reports 1.99% decrease in ownership of APEI / American Public Education, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 21,276 shares of American Public Education, Inc. (MX:APEI) valued at $1,210,173 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 21,707 shares of American Public Education, Inc.. This represents a change in shares of -1.99% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 21,276 -431 -1.99 1,210 47.56 0.0010
2026-02-13 2025-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 21,707 -3,000 -12.14 821 -15.90 0.0007
2025-11-06 2025-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 24,707 -483 -1.92 975 27.12 0.0008
2025-08-12 2025-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 25,190 2,324 10.16 767 50.39 0.0007
2025-05-29 2025-03-31 13F/A-1 AMERICAN PUB ED INC COM COM 02913V103 22,866 -900 -3.79 510 -0.39 0.0005
2025-04-08 2025-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 22,866 -900 510 0.0005
2025-05-29 2024-12-31 13F/A-1 AMERICAN PUB ED INC COM COM 02913V103 23,766 174 0.74 513 47.55 0.0005
2025-01-30 2024-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 23,766 174 513 0.0005
2024-11-12 2024-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 23,592 1,546 7.01 348 -10.34 0.0003
2024-08-01 2024-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 22,046 21,565 4,483.37 388 6,350.00 0.0004
2024-05-09 2024-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 481 0 0.00 7 50.00 0.0000
2024-02-08 2023-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 481 0 0.00 5 100.00 0.0000
2023-11-09 2023-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 481 -1,423 -74.74 2 -77.78 0.0000
2023-08-08 2023-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 1,904 -27,095 -93.43 9 0.0000
2023-05-11 2023-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 28,999 162 0.56 0 -100.00 0.0002
2023-02-14 2022-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 28,837 -639 -2.17 354 31.60 0.0005
2022-11-10 2022-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 29,476 -26,085 -46.95 269 -70.04 0.0004
2022-08-11 2022-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 55,561 2,919 5.55 898 -19.68 0.0013
2022-05-12 2022-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 52,642 -276 -0.52 1,118 -5.01 0.0014
2022-02-10 2021-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 52,918 2,331 4.61 1,177 -9.18 0.0014
2021-11-12 2021-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 50,587 -6,808 -11.86 1,296 -20.34 0.0018
2021-08-05 2021-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 57,395 718 1.27 1,627 -19.42 0.0021
2021-05-06 2021-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 56,677 6,611 13.20 2,019 32.31 0.0027
2021-02-10 2020-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 50,066 3,646 7.85 1,526 16.58 0.0021
2020-11-12 2020-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 46,420 -2,893 -5.87 1,309 -10.34 0.0021
2020-08-13 2020-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 49,313 -9,270 -15.82 1,460 4.14 0.0024
2020-05-06 2020-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 58,583 3,066 5.52 1,402 -7.82 0.0029
2020-02-05 2019-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 55,517 1,614 2.99 1,521 26.33 0.0025
2019-10-23 2019-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 53,903 3,076 6.05 1,204 -19.89 0.0022
2019-08-14 2019-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 50,827 2,657 5.52 1,503 3.58 0.0028
2019-05-01 2019-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 48,170 337 0.70 1,451 6.61 0.0028
2019-01-31 2018-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 47,833 8,068 20.29 1,361 3.58 0.0030
2018-11-07 2018-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 39,765 171 0.43 1,314 -21.18 0.0025
2018-08-06 2018-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 39,594 -224 -0.56 1,667 -2.63 0.0034
2018-05-02 2018-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 39,818 749 1.92 1,712 74.87 0.0036
2018-02-09 2017-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 39,069 5,482 16.32 979 38.47 0.0020
2017-11-06 2017-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 33,587 525 1.59 707 -9.59 0.0015
2017-08-02 2017-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 33,062 -154 -0.46 782 2.76 0.0018
2017-05-02 2017-03-31 13F AMERICAN PUB ED INC COM COM 02913V103 33,216 8,892 36.56 761 27.47 0.0018
2017-01-27 2016-12-31 13F AMERICAN PUB ED INC COM COM 02913V103 24,324 -203 -0.83 597 22.84 0.0015
2016-11-08 2016-09-30 13F AMERICAN PUB ED INC COM COM 02913V103 24,527 355 1.47 486 -28.42 0.0013
2016-08-11 2016-06-30 13F AMERICAN PUB ED INC COM COM 02913V103 24,172 -5,929 -19.70 679 9.34 0.0020
2016-05-02 2016-03-31 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 30,101 2,485 9.00 621 20.82 0.0019
2016-02-03 2015-12-31 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 27,616 1,055 3.97 514 -17.50 0.0017
2015-11-04 2015-09-30 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 26,561 1,216 4.80 623 -4.45 0.0021
2015-08-04 2015-06-30 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 25,345 4,585 22.09 652 4.82 0.0021
2015-05-12 2015-03-31 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 20,760 2,550 14.00 622 -7.30 0.0018
2015-02-06 2014-12-31 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 18,210 -835 -4.38 671 30.54 0.0019
2014-11-12 2014-09-30 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 19,045 -1,100 -5.46 514 -25.83 0.0015
2014-08-06 2014-06-30 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 20,145 -485 -2.35 693 -4.28 0.0020
2014-05-06 2014-03-31 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 20,630 -860 -4.00 724 -22.48 0.0021
2014-02-03 2013-12-31 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 21,490 940 4.57 934 20.21 0.0028
2013-11-05 2013-09-30 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 20,550 370 1.83 777 3.60 0.0024
2013-08-07 2013-06-30 13F AMERICAN PUBLIC EDUCATION COMM COM 02913V103 20,180 20,180 750 0.0024
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.