Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

FRONTIER CAPITAL MANAGEMENT CO LLC 13F Holdings -- Portfolio & Top Positions (2026-06-30)

FRONTIER CAPITAL MANAGEMENT CO LLC (CIK 351173) reported $10.73B across 300 reported positions in its SEC 13F filing for 2026-06-30. Largest positions: FTAI ($320.2M, 2.98%), ALK ($176.7M, 1.65%), GVA ($176.9M, 1.65%), AAOI ($144.5M, 1.35%), AKAM ($134.4M, 1.25%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1FTAIFTAI AVIATION LTD$320.2M2.98%1.2MAdded
2ALKALASKA AIR GROUP INC$176.7M1.65%3.4MAdded
3GVAGRANITE CONSTR INC$176.9M1.65%1.1MTrimmed
4AAOIAPPLIED OPTOELECTRONICS INC$144.5M1.35%975,318Added
5AKAMAKAMAI TECHNOLOGIES INC$134.4M1.25%1.1MAdded
6ASHASHLAND INC$131.8M1.23%2.0MAdded
7LSCCLATTICE SEMICONDUCTOR CORP$125.7M1.17%821,848Added
8BPOPPOPULAR INC$119.1M1.11%725,227Trimmed
9MDBMONGODB INC$112.2M1.05%334,098Added
10UTHRUNITED THERAPEUTICS CORP DEL$112.1M1.04%206,808Trimmed
11KNXKNIGHT-SWIFT TRANSN HLDGS IN$109.9M1.02%1.4MTrimmed
12EXPEAGLE MATLS INC$103.2M0.96%458,621Trimmed
13XPOXPO INC$102.6M0.96%499,601Trimmed
14LRNSTRIDE INC$102.8M0.96%1.2MTrimmed
15BBIOBRIDGEBIO PHARMA INC$102.3M0.95%1.4MAdded
16LBRTLIBERTY ENERGY INC$97.4M0.91%3.7MAdded
17UCTTULTRA CLEAN HLDGS INC$95.2M0.89%667,532Trimmed
18RAREULTRAGENYX PHARMACEUTICAL IN$95.1M0.89%2.8MAdded
19SANMSANMINA CORP$95.7M0.89%378,111Trimmed
20PODDINSULET CORP$94.8M0.88%622,506Added
21MODMODINE MFG CO$91.8M0.86%343,868Added
22FLSFLOWSERVE CORP$91.5M0.85%1.2MAdded
23ALGTALLEGIANT TRAVEL CO$90.0M0.84%765,347Added
24KEXKIRBY CORP$90.6M0.84%666,554Added
25PEVERPURE INC$88.2M0.82%1.1MAdded

Source: SEC Form 13F filings · as of 2026-06-30