Tri Locum Partners LP: ARGENX SE (ARGX): Quarterly 13F Position History
As of Q2 2026, Tri Locum Partners LP reported 41,596 shares of ARGENX SE (ARGX), worth $38.6M and representing 4.7% of its 13F equity book. Quarter-over-quarter share count change: + 9,961 (+31.5%) . The position first appeared in Q2 2021 and has been disclosed across 21 13F-HR filings in Pactolio's tracked window.
- 41,596Shares Held (Latest Filing)
- $38.6MReported Market Value (Latest Filing)
- 4.7%Portfolio Weight (% of 13F Equity Book)
- +9,961Quarter-over-Quarter Share Change
- +$15.5MQuarter-over-Quarter Value Change
- 82,735Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 21 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 41,596 | +9,961 | +31.5% | $38.6M | 4.7% | $927.8 |
| Q1 2026 | 31,635 | 6,018 | -16.0% | $23.1M | 3.2% | $730.3 |
| Q4 2025 | 37,653 | 5,758 | -13.3% | $31.7M | 4.1% | $841.0 |
| Q3 2025 | 43,411 | 4,382 | -9.2% | $32.0M | 7.4% | $737.6 |
| Q2 2025 | 47,793 | +29,949 | +167.8% | $26.3M | 8.0% | $551.2 |
| Q1 2025 | 17,844 | 40,414 | -69.4% | $10.6M | 5.4% | $591.9 |
| Q4 2024 | 58,258 | 4,216 | -6.7% | $35.8M | 7.4% | $615.0 |
| Q3 2024 | 62,474 | 12,084 | -16.2% | $33.9M | 8.1% | $542.1 |
| Q2 2024 | 74,558 | +46,577 | +166.5% | $32.1M | 8.1% | $430.0 |
| Q1 2024 | 27,981 | +3,799 | +15.7% | $11.0M | 3.8% | $393.7 |
| Q4 2023 | 24,182 | +9,836 | +68.6% | $9.2M | 4.5% | $380.4 |
| Q3 2023 | 14,346 | +14,346 | – | $7.1M | 2.3% | $491.6 |
| Q2 2023 | 0 | 0 | – | $0 | 0.0% | – |
| Q1 2023 | 0 | 1,299 | -100.0% | $0 | 0.0% | – |
| Q4 2022 | 1,299 | 62,853 | -98.0% | $492.0K | 0.2% | $378.8 |
| Q3 2022 | 64,152 | 18,583 | -22.5% | $22.6M | 6.5% | $353.1 |
| Q2 2022 | 82,735 | +46,855 | +130.6% | $31.3M | 12.9% | $378.9 |
| Q1 2022 | 35,880 | 12,467 | -25.8% | $11.3M | 4.4% | $315.3 |
| Q4 2021 | 48,347 | +48,347 | – | $16.9M | 6.8% | $350.2 |
| Q3 2021 | 0 | 6,408 | -100.0% | $0 | 0.0% | – |
| Q2 2021 | 6,408 | – | – | $1.9M | 0.8% | $301.0 |
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 rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did Tri Locum Partners LP first disclose a ARGX position in 13F-HR filings?
Tri Locum Partners LP first reported ARGENX SE (ARGX) on its 13F-HR filing for the period ending 2021-06-30 (Q2 2021). The position has appeared on 21 reported quarters within Pactolio's tracked window.
What was Tri Locum Partners LP's most recent quarter-over-quarter share-count change in ARGX?
Between Q1 2026 and Q2 2026, Tri Locum Partners LP added 9,961 shares of ARGX (+31.5%), bringing the total reported position to 41,596 shares at a market value of $38.6M.
Does the implied price-per-share represent Tri Locum Partners LP's cost basis in ARGX?
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.