CastleKnight Management LP: TSAKOS ENERGY NAVIGATION LTD (TEN): Quarterly 13F Position History
As of Q1 2026, CastleKnight Management LP reported 799,391 shares of TSAKOS ENERGY NAVIGATION LTD (TEN), worth $31.5M and representing 1.5% of its 13F equity book. Quarter-over-quarter share count change: 431,257 (-35.0%) . The position first appeared in Q1 2024 and has been disclosed across 9 13F-HR filings in Pactolio's tracked window.
- 799,391Shares Held (Latest Filing)
- $31.5MReported Market Value (Latest Filing)
- 1.5%Portfolio Weight (% of 13F Equity Book)
- 431,257Quarter-over-Quarter Share Change
- +$4.0MQuarter-over-Quarter Value Change
- 1,230,648Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 9 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 799,391 | 431,257 | -35.0% | $31.5M | 1.5% | $39.5 |
| Q4 2025 | 1,230,648 | +201,061 | +19.5% | $27.6M | 1.6% | $22.4 |
| Q3 2025 | 1,029,587 | +347,550 | +51.0% | $22.9M | 1.2% | $22.2 |
| Q2 2025 | 682,037 | +459,100 | +205.9% | $13.1M | 0.9% | $19.2 |
| Q1 2025 | 222,937 | +179,136 | +409.0% | $3.8M | 0.4% | $17.1 |
| Q4 2024 | 43,801 | 20,400 | -31.8% | $759.5K | 0.1% | $17.3 |
| Q3 2024 | 64,201 | 0 | — | $1.6M | 0.2% | $25.1 |
| Q2 2024 | 64,201 | 0 | — | $1.9M | 0.3% | $29.3 |
| Q1 2024 | 64,201 | — | — | $1.6M | 0.2% | $25.4 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did CastleKnight Management LP first disclose a TEN position in 13F-HR filings?
CastleKnight Management LP first reported TSAKOS ENERGY NAVIGATION LTD (TEN) on its 13F-HR filing for the period ending 2024-03-31 (Q1 2024). The position has appeared on 9 reported quarters within Pactolio's tracked window.
What was CastleKnight Management LP's most recent quarter-over-quarter share-count change in TEN?
Between Q4 2025 and Q1 2026, CastleKnight Management LP reduced its TEN position by 431,257 shares (-35.0%), leaving 799,391 shares at a market value of $31.5M.
Does the implied price-per-share represent CastleKnight Management LP's cost basis in TEN?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.