Christoffer Strömbäck

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Insider profile

Performance

Overall performance

3.2

Performance over holding periods

3.2

	30 days	90 days	120 days
Average return	9%	8.2%	15.1%
Success rate	75%	68%	82%
Transactions	12 100% Buy	34 71% Buy	47 69% Buy

Ranking by holding-period performance

Christoffer Strömbäck's trades of Castellum AB's stock

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value	Details
2025-12-09	2025-12-09	Castellum AB (CAST)	B Purchase	1,491 396.69 SEK4,900,967	1,491	396.69	SEK4,900,967
2023-10-30	2023-10-27	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	53,462 127.86 SEK2,578,828	53,462	127.86	SEK2,578,828
2022-12-23	2022-12-23	Vivska AB	B Purchase	52,665 330.82 SEK955,944	52,665	330.82	SEK955,944
2022-07-14	2022-07-11	Vivska AB	B Purchase	150,000 1.94 SEK291,000	150,000	1.94	SEK291,000
2022-07-07	2022-07-05	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	14,970,060 5.01 SEK75,000,001	14,970,060	5.01	SEK75,000,001
2021-12-31	2021-12-30	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	145,653 9.97 SEK1,452,160	145,653	9.97	SEK1,452,160
2021-12-29	2021-12-29	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	50,000 9.89 SEK494,500	50,000	9.89	SEK494,500
2021-12-29	2021-12-28	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	150,000 9.95 SEK1,492,500	150,000	9.95	SEK1,492,500
2021-12-16	2021-12-14	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	1,172,582 8.52 SEK9,990,399	1,172,582	8.52	SEK9,990,399
2021-09-01	2021-09-01	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	10,499 9.70 SEK101,840	10,499	9.70	SEK101,840
2021-08-30	2021-08-27	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	3,086 9.75 SEK30,088	3,086	9.75	SEK30,088
2021-08-30	2021-08-26	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	11,415 9.65 SEK110,155	11,415	9.65	SEK110,155
2021-06-22	2021-06-22	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	300,000 0.93 SEK279,000	300,000	0.93	SEK279,000
2021-06-21	2021-06-21	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	25,000 7.80 SEK195,000	25,000	7.80	SEK195,000
2021-06-14	2021-06-11	Vivska AB	B Purchase	400,000 1.71 SEK684,000	400,000	1.71	SEK684,000
2021-06-10	2021-06-10	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	20,000 8.25 SEK165,000	20,000	8.25	SEK165,000
2021-06-09	2021-06-08	Studentbostader I Norden AB (publ) (STUDBO)	B Purchase	25,000 8.40 SEK210,000	25,000	8.40	SEK210,000
2020-07-06	2020-07-03	Vivska AB	B Purchase	10,964 77.40 SEK848,614	10,964	77.40	SEK848,614
2020-06-02	2020-06-02	Vivska AB	S Sale	35,000 34.64 SEK1,212,400	35,000	34.64	SEK1,212,400