Rossby Financial, LCC INSW — INTERNATIONAL SEAWAYS INC COM

Ownership history in Rossby Financial, LCC  ·  7 quarters on record

AI Ownership Summary

Rossby Financial, LCC reported INTERNATIONAL SEAWAYS INC COM (INSW) in 7 quarterly 13F filings from 2025 Q1 through 2026 Q2. Peak portfolio weight reached 0.21% in 2025 Q3. The latest visible filing shows INSW at 0.12% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this INSW ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Rossby Financial, LCC's position in INTERNATIONAL SEAWAYS INC COM, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q2

INSW was reported at 0.12% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.21% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2026 Q2

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

INSW stock page Rossby Financial, LCC fund profile Rossby Financial, LCC full holdings
How Rossby Financial, LCC held INSW — position size vs. price
% of Fund (quarterly)    INSW price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 REDUCED — — — 8,260 -653 -7.3% 0.12% $633K 2026-08-04 $92.57
2026 Q1 REDUCED 25.9% +13.0% ❌ 8,913 -3,123 -25.9% 0.13% $644K 2026-05-11 $84.77
2025 Q4 REDUCED 13.0% +54.7% ❌ 12,036 -1,800 -13.0% 0.18% $584K 2026-02-12 $56.89
2025 Q3 REDUCED 10.1% +8.5% ❌ 13,836 -1,550 -10.1% 0.21% $638K 2025-11-10 $48.33
2025 Q2 ADDED — — — 15,386 +3,030 +24.5% 0.21% $561K 2025-08-01 $35.63
2025 Q1 ADDED — — — 12,356 +9,856 +394.2% 0.18% $419K 2025-04-28 $29.47
2025 Q1 INITIATED — — — 2,500 — — 0.04% $85K 2025-04-28 $29.47

🏢 Other funds also holding INSW

As of 2026 Q2 — sorted by position size

Lesa Sroufe & Co 3Y 7Y 3.37% Hosking Partners LLP 3Y 7Y 1.55% SummerHaven Investment Management, LLC 3Y 0.81% RESOLUTE CAPITAL, LLC 0.65% PRIVATE MANAGEMENT GROUP INC 3Y 7Y 0.36% NAVELLIER & ASSOCIATES INC 3Y 7Y 0.3% Glenorchy Capital Ltd 0.15% Bayforest Capital Ltd 0.14% Arlington Capital Management, Inc. 3Y 7Y 0.14% Knights of Columbus Asset Advisors LLC 3Y 7Y 0.11%

FAQ About Rossby Financial, LCC and INSW

These are the practical questions this page is built to answer before you even open the full history table.

How long has Rossby Financial, LCC reported owning INSW?

Rossby Financial, LCC reported INSW across 7 quarterly 13F filings, from 2025 Q1 through 2026 Q2.

What was the largest reported INSW position in Rossby Financial, LCC's portfolio?

The largest reported portfolio weight for INSW was 0.21% in 2025 Q3.

What is the latest reported INSW position on this page?

The most recent filing on this page is 2026 Q2, when Rossby Financial, LCC reported 8,260 shares, equal to 0.12% of portfolio, with an estimated market value of $633K.

What does the chart on this INSW ownership page compare?

The chart compares Rossby Financial, LCC's quarterly INSW portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Rossby Financial, LCC time their INSW position?

Based on 13F filing dates vs. subsequent INSW price moves, Rossby Financial, LCC correctly timed 2 out of 6 reported position changes (33%). The annualised alpha on INSW relative to SPY over the holding period was +87.1%.

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