EMERALD ADVISERS, LLC: ATRO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of EMERALD ADVISERS, LLC on ATRO, newest first. How the timeline and the estimate are built.

EMERALD ADVISERS, LLC held 841,279 ATRO shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

period ended2026-06-30
13F 841,279 shares
Change vs previous 13F +112,994 shares
0.96% of the 13F portfolio, value $68,362,332.
13F-HR 0001104659-26-090959 filed by EMERALD ADVISERS, LLC
Filed 2026-08-05 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
- EMERALD ADVISERS, LLC: 513,984 shares
- EMERALD MUTUAL FUND ADVISERS TRUST: 327,295 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 728,285 shares
Change vs previous 13F not available
0.93% of the 13F portfolio, value $48,598,458.
13F-HR 0001104659-26-054901 filed by EMERALD ADVISERS, LLC
Filed 2026-05-04 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
- EMERALD ADVISERS, LLC: 449,126 shares
- EMERALD MUTUAL FUND ADVISERS TRUST: 279,159 shares
Acceptance time not in the bulk data set (spec §4.2).