Who owns CTOS?
Institutional ownership of Custom Truck One Source Inc. from Form 13F, Q2 2026
185 institutional managers reported holding Custom Truck One Source Inc. (CTOS) in Form 13F filings for Q2 2026, with 66,647,828 shares worth $785M. The largest reported holder was Dimensional Fund Advisors LP. Managers that filed both quarters added a net 4,474,772 shares (+7.2%). 34 opened new positions and 20 sold out.
- Funds holding
- 185
- Value held
- $785M
- New / sold out
- 34 / 20
- Net shares, same filers
- +7.2%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of CTOS
Share of 13F holdings is each fund's shares as a share of the 66,647,828 CTOS shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Goldman Sachs Group Inc Added+$16.1M
- Arrowstreet Capital, Limited Partnership Added+$13.5M
- Algert Global LLC Added+$11.6M
- First Eagle Investment Management, LLC Added+$11.3M
- JPMorgan Chase & Co Added+$9.8M
- Dimensional Fund Advisors LP Added+$6.7M
- MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Added+$5.7M
- Walleye Capital LLC New+$5.5M
- Vanguard Portfolio Management LLC Added+$5.3M
- D. E. Shaw & Co., Inc. Added+$5.2M
Biggest sellers in Q2 2026
- Alyeska Investment Group, L.P. Trimmed-$14.0M
- Allspring Global Investments Holdings, LLC Trimmed-$13.5M
- Canvas Wealth Advisors, LLC Trimmed-$12.2M
- Clearbridge Investments, LLC Trimmed-$4.7M
- Boston Partners Trimmed-$4.6M
- Jane Street Group, LLC Sold out-$4.3M
- Heartland Advisors Inc Trimmed-$3.5M
- Citadel Advisors LLC Trimmed-$3.0M
- Private Capital Management, LLC Trimmed-$2.4M
- Tudor Investment Corp Et Al Trimmed-$2.4M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $144M and sold $82.8M; 75 added and 55 trimmed.
Questions about CTOS ownership
- Who owns CTOS stock?
- 185 institutional investment managers reported CTOS positions in their Form 13F filings for Q2 2026, holding 66,647,828 shares worth $785M in total. Dimensional Fund Advisors LP reported the largest position.
- Are funds buying or selling CTOS?
- In Q2 2026, 34 managers opened new CTOS positions, 75 added, 55 trimmed and 20 sold out. Managers that filed in both quarters added a net 4,474,772 shares.
- How current is this CTOS institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to CTOS by CUSIP. Options are left out. CTOS news and filings · CTOS insider trades · Top funds